2007 Mercedes-benz M Class Owners Manual

to a sudden dramatic loss of pressure (e.g. tire blowout caused by a foreign object). In this case bring the vehicle to a halt by care- fully applying the brakes and avoiding abrupt steering maneuvers.

Operation Tires and wheels

Warning!

Each tire, including the spare (if provided), should be checked monthly when cold and inflated to the inflation pressure recom- mended by the vehicle manufacturer on the vehicle placard or the tire inflation pressure label. (If your vehicle has tires of a different size than the size indicated on the vehicle placard or the tire inflation pressure label, you should determine the proper tire infla- tion pressure for those tires). As an added safety feature, your vehicle has been equipped with a tire pressure monitor- ing system (TPMS) that illuminates a low tire pressure telltale when one or more of your tires is significantly underinflated. Accord- ingly, when the low tire pressure telltale illu- minates, you should stop and check your tires as soon as possible, and inflate them to the proper pressure. Driving on a significant- ly underinflated tire causes the tire to over- heat and can lead to tire failure.

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Operation Tires and wheels

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Underinflation also reduces fuel efficiency and tire tread life, and may affect the vehi- cle’s handling and stopping ability. Please note that the TPMS is not a substitute for proper tire maintenance, and it is the driver’s responsibility to maintain correct tire pressure, even if underinflation has not reached the level to trigger illumination of the TPMS low tire pressure telltale.

Your vehicle has also been equipped with a TPMS malfunction indicator to indicate when the system is not operating properly. The TPMS malfunction indicator is com- bined with the low tire pressure telltale. When the system detects a malfunction, the telltale will flash for approximately 1 minute and then remain continuously illuminated. This sequence will continue upon subse- quent vehicle start-ups as long as the mal- function exists. When the malfunction indicator is illuminated, the system may not be able to detect or signal low tire pressure as intended.

380

TPMS malfunctions may occur for a variety of reasons, including the installation of in- compatible replacement or alternate tires or wheels on the vehicle that prevent the TPMS from functioning properly. Always check the TPMS malfunction telltale after replacing one or more tires or wheels on your vehicle to ensure that the replacement or alternate tires and wheels allow the TPMS to continue to function properly.

i If a condition causing the TPMS to malfunc- tion develops, it may take up to 10 minutes for the system to signal a malfunction using the TPMS telltale flashing and illumination se- quence. The telltale extinguishes after a few minutes driv- ing if the malfunction has been corrected.

i Operating radio transmission equipment (e.g. wireless headsets, two-way radios) in or near the vehicle could cause the TPMS to mal- function.

Reactivating the TPMS

Warning!

It is the driver’s responsibility to calibrate the TPMS on the recommended cold infla- tion pressure. Underinflated tires affect the ability to steer or brake the vehicle. You might lose control over the vehicle.

The TPMS must be reactivated when you have adjusted the tire inflation pressure to a new level (e.g. because of different load or driving conditions). The TPMS is then recalibrated to the current tire inflation pressures. 왘 Using the tire placard on the driver’s door B-pillar (컄 page 369) or, if avail- able, the supplemental tire pressure information on the inside of the fuel filler flap (컄 page 374), make sure the tire inflation pressure of all four tires is correct.

Operation Tires and wheels

i Reactivate the TPMS after adjusting the tire inflation pressure to the inflation pressure rec- ommended for the vehicle operating condition. Tire pressure should only be adjusted on cold tires. Observe the recommended tire inflation pressure on the placard on the driver’s door B-pillar (컄 page 369). Some vehicles may have supplemental tire pressure information for driv- ing at high speeds (컄 page 375) or for vehicle loads less than the maximum loaded vehicle con- dition (컄 page 375). If such information is pro- vided, it can be found on the inside of the fuel filler flap. 왘 Press button è or ÿ on the mul-

tifunction steering wheel repeatedly until the standard display menu ap- pears in the multifunction display (컄 page 147).

왘 Press the j or k button repeat-

edly until you see the following message: Tire pressure monitor active Menu: R-Button

왘 Press the reset button (컄 page 145). The following message will appear in the multifunction display: Restart tire pressure monitor?

왘 Press the æ button.

The following message will appear in the multifunction display: Tire pressure monitor restarted After driving a few minutes the system verifies that the current tire inflation pressures are within the system’s specified range. Afterwards the current tire inflation pressures are accepted as reference pressures and then moni- tored.

If you wish to cancel activation: 왘 Press the ç button.

Checking tire pressure electronically with the Advanced Tire Pressure Moni- toring System (Advanced TPMS)*, (Canada only) The TPMS only functions on wheels that are equipped with the proper electronic sensors. It monitors the tire inflation pres- sure, as selected by the driver, in all four tires. A warning is issued to alert you to a decrease in pressure in one or more of the tires. Tire pressure inquiries are made using the multifunction display. The present inflation pressures are displayed only after a few minutes’ travel time.

i Possible differences between the readings of a tire pressure gauge of an air hose, e.g. gas station equipment, and the vehicle’s control system can occur. Usually the readings issued by the control system are more precise.

381

Operation Tires and wheels

왘 Switch on the ignition (컄 page 40). 왘 Press the j or k button on the multifunction steering wheel until the current inflation pressures for each tire appear in the multifunction display.

i With a spare wheel without wheel sensor mounted, the system may still indicate the tire inflation pressure of the removed wheel for some minutes. If this happens, keep in mind that the indicated value where the spare wheel is mount- ed does not reflect the actual spare tire inflation pressure.

Warning!

The TPMS does not indicate a warning for wrongly selected inflation pressures. Always adjust tire inflation pressure according to the placard on the driver’s door B-pillar or, if available, the supplemental tire pressure in- formation on the inside of the fuel filler flap.

The TPMS is not able to issue a warning due to a sudden dramatic loss of pressure (e.g. tire blowout caused by a foreign object). In this case bring the vehicle to a halt by care- fully applying the brakes and avoiding abrupt steering maneuvers.

i When the message Tire pressure displayed after driving for a few minutes appears in the multifunction display, the individual inflation pressure values are matched with the tires. The individual values are displayed after a few minutes driving.

Warning!

It is the driver’s responsibility to calibrate the TPMS on the recommended cold infla- tion pressure. Underinflated tires affect the ability to steer or brake the vehicle. You might lose control over the vehicle.

382

Warning!

Each tire, including the spare (if provided), should be checked monthly when cold and inflated to the inflation pressure recom- mended by the vehicle manufacturer on the vehicle placard or the tire inflation pressure label. (If your vehicle has tires of a different size than the size indicated on the vehicle placard or the tire inflation pressure label, you should determine the proper tire infla- tion pressure for those tires). As an added safety feature, your vehicle has been equipped with a tire pressure monitor- ing system (TPMS) that illuminates a low tire pressure telltale when one or more of your tires are significantly underinflated. Accord- ingly, when the low tire pressure telltale illu- minates, you should stop and check your tires as soon as possible. Driving on a signif- icantly underinflated tire causes the tire to overheat and can lead to tire failure.

Underinflation also reduces fuel efficiency and tire tread life, and may effect the vehi- cle’s handling and stopping ability. Please note that the TPMS is not a substitute for proper tire maintenance, and it is the driv- er’s responsibility to maintain correct tire pressure, even if under-inflation has not reached the level to trigger illumination of the TPMS low tire pressure telltale.

i Operating radio transmission equipment (e.g. wireless headsets, two-way radios) in or near the vehicle could cause the TPMS to mal- function.

Reactivating Advanced TPMS* The TPMS must be reactivated when you have adjusted the tire inflation pressure to a new level (e.g. because of different load or driving conditions). The TPMS is then recalibrated to the current tire inflation pressures.

Warning!

It is the driver’s responsibility to calibrate the TPMS on the recommended cold infla- tion pressure. Underinflated tires affect the ability to steer or brake the vehicle. You might lose control over the vehicle.

왘 Using the tire placard on the driver’s door B-pillar (컄 page 369) or, if avail- able, the supplemental tire pressure information on the inside of the fuel filler flap (컄 page 374), make sure the tire inflation pressure of all four tires is correct.

Operation Tires and wheels

i Reactivate the TPMS after adjusting the tire inflation pressure to the inflation pressure rec- ommended for the vehicle operating condition. Tire pressure should only be adjusted on cold tires. Observe the recommended tire inflation pressure on the placard on the driver’s door B-pillar (컄 page 369). Some vehicles may have supplemental tire pressure information for driv- ing at high speeds (컄 page 375) or for vehicle loads less than the maximum loaded vehicle con- dition (컄 page 375). If such information is pro- vided, it can be found on the inside of the fuel filler flap. 왘 Press button è or ÿ on the mul-

tifunction steering wheel repeatedly until the standard display menu appears in the multifunction display (컄 page 147).

왘 Press the j or k button repeat- edly until you see the current inflation pressures for each tire appear in the display or the following message ap- pears in the display Tire pressure displayed after driving for a few minutes

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Operation Tires and wheels

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왘 Press the reset button (컄 page 145). The following message will appear in the multifunction display: Restart tire pressure monitor?

왘 Press the æ button.

The following message will appear in the multifunction display: Tire pressure monitor restarted After a few minutes driving, the current tire inflation pressure values are ac- cepted as reference values and then monitored.

If you wish to cancel activation: 왘 Press the ç button.

384

Potential problems associated with underinflated and overinflated tires

Underinflated tires Underinflated tires can: 앫 cause excessive and uneven tire wear 앫 adversely affect fuel economy 앫 lead to tire failure from being

overheated

앫 adversely affect handling

characteristics

Warning!

Follow recommended tire inflation pressures.

Do not underinflate tires. Underinflated tires wear excessively and/or unevenly, adversely affect handling and fuel economy, and are more likely to fail from being overheated.

Overinflated tires Overinflated tires can: 앫 adversely affect handling

characteristics

앫 cause uneven tire wear 앫 be more prone to damage from road

hazards

앫 adversely affect ride comfort 앫 increase stopping distance

Warning!

Follow recommended tire inflation pressures.

Do not overinflate tires. Overinflated tires can adversely affect handling and ride comfort, wear unevenly, increase stopping distance, and result in sudden deflation (blowout) because they are more likely to become punctured or damaged by road debris, potholes etc.

Tire labeling

Besides tire name (sales designation) and manufacturer name, a number of markings can be found on a tire. Following are some explanations for the markings on your vehicle’s tires:

Operation Tires and wheels

1 Uniform Quality Grading Standards

(컄 page 392)

Tire size designation, load and speed rating

2 DOT, Tire Identification Number (TIN)

(컄 page 389)

3 Maximum tire load (컄 page 391) 4 Maximum tire inflation pressure

(컄 page 391) 5 Manufacturer 6 Tire ply material (컄 page 394) 7 Tire size designation, load and speed

rating (컄 page 385)

8 Load identification (컄 page 389) 9 Tire name

i For illustration purposes only. Actual data on tires are specific to each vehicle and may vary from data shown in above illustration. For more information, see “Rims and tires” (컄 page 536).

1 Tire width 2 Aspect ratio in % 3 Radial tire code 4 Rim diameter 5 Tire load rating 6 Tire speed rating

i For illustration purposes only. Actual data on tires are specific to each vehicle and may vary from data shown in above illustration.

385

Operation Tires and wheels

General: Depending on the design standards used, the tire size molded into the sidewall may have no letter or a letter preceding the tire size designation. No letter preceding the size designation (as illustrated above): Passenger car tire based on European design standards. Letter “P” preceding the size designation: Passenger car tire based on U.S. design standards. Letter “LT” preceding the size designation: Light Truck tire based on U.S. design standards. Letter “T” preceding the size designation: Temporary spare tires which are high pressure compact spares designed for temporary emergency use only.

386

Rim diameter The rim diameter 4 (컄 page 385) is the diameter of the bead seat, not the diameter of the rim edge. Rim diameter is indicated in inches (in).

Tire load rating The tire load rating 5 (컄 page 385) is a numerical code associated with the maximum load a tire can support. For example, a load rating of 91 corre- sponds to a maximum load of 1356 lbs (615 kg) the tire is designed to support. See also “Maximum tire load” (컄 page 391) where the maximum load as- sociated with the load index is indicated in kilograms and lbs.

Tire width The tire width 1 (컄 page 385) indicates the nominal tire width in mm.

Aspect ratio The aspect ratio 2 (컄 page 385) is the dimensional relationship between tire section height and section width and is expressed in percentage. The aspect ratio is arrived at by dividing section height by section width.

Tire code The tire code 3 (컄 page 385) indicates the tire construction type. The “R” stands for radial tire type. Letter “D” means diag- onal or bias ply construction; letter “B” means belted-bias ply construction. At the tire manufacturer’s option, any tire with a speed capability above 149 mph (240 km/h) can include a “ZR” in the size designation (for example: 245/40 ZR 18). For additional information, see “Tire speed rating” (컄 page 387).

Warning!

The tire load rating must always be at least half of the GAWR (컄 page 395) of your vehi- cle. Otherwise, tire failure may be the result which may cause an accident and/or seri- ous personal injury to you or others.

Always replace rims and tires with the same designation, manufacturer and type as shown on the original part.

For additional information on tire load rating, see “Load identification” (컄 page 389). i Tire load rating 5 (컄 page 385) and Tire speed rating 6 (컄 page 385) are also referred to as “service description”.

Tire speed rating The tire speed rating 6 (컄 page 385) indicates the approved maximum speed for the tire.

Warning!

Warning!

Do not overload the tires by exceeding the specified load limit as indicated on the plac- ard located on the driver’s door B-pillar. Overloading the tires can overheat them, possibly causing a blowout. Overloading the tires can also result in handling or steering problems, or brake failure.

Even when permitted by law, never operate a vehicle at speeds greater than the maximum speed rating of the tires.

Exceeding the maximum speed for which tires are rated can lead to sudden tire failure, causing loss of vehicle control and possibly resulting in an accident and/or personal injury and possible death, for you and for others.

Operation Tires and wheels

i Tire load rating 5 (컄 page 385) and Tire speed rating 6 (컄 page 385) are also referred to as “service description”.

Summer tires

Index (Y) ZR

Speed rating up to 100 mph (160 km/h) up to 106 mph (170 km/h) up to 112 mph (180 km/h) up to 118 mph (190 km/h) up to 130 mph (210 km/h) up to 149 mph (240 km/h) up to 168 mph (270 km/h) up to 186 mph (300 km/h) above 186 mph (300 km/h) above 149 mph (240 km/h)

387

the speed rating and the speed capabil- ity of the tire is limited to 186 mph (300 km/h).

앫 Any tire with a speed capability above 186 mph (300 km/h) must include a “ZR” in the size designation AND the service description must be placed in parenthesis. Example: 275/40 ZR 18 (99Y). The “(Y)” speed rating in paren- thesis designates the maximum speed capability of the tire as being above 186 mph (300 km/h). Consult the tire manufacturer for the actual maximum permissible speed of the tire.

All-season and winter tires

Speed rating Index Q M+S1
up to 100 mph (160 km/h) T M+S1 up to 118 mph (190 km/h) H M+S1 up to 130 mph (210 km/h) V M+S1 up to 149 mph (240 km/h) 1 or M+S.for winter tires

i Not all M+S rated tires provide special winter performance. Make sure the tires you use show M+S and the mountain/snowflake.marking on the tire sidewall. These tires meet specific snow traction performance requirements of the Rubber Manu- facturers Association (RMA) and the Rubber Association of Canada (RAC) and have been designed specifically for use in snow conditions.

Operation Tires and wheels

앫 At the tire manufacturer’s option, any

tire with a speed capability above 149 mph (240 km/h) can include a “ZR” in the size designation (for exam- ple: 245/40 ZR18). To determine the maximum speed capability of the tire, the service description for the tire must be referred to. The service description is comprised of the tire load rating 5 (컄 page 385) and the tire speed rating 6 (컄 page 385). If your tire includes “ZR” in the size designation and no service description 5 and 6 (컄 page 385) is given, the tire manufacturer must be consulted for the maximum speed ca- pability. If a service description 5 and 6 (컄 page 385) is given, the speed capa- bility is limited by the speed symbol in the service description. Example: 245/40 ZR18 97Y. In this example, “97Y” is the service description. The letter “Y” designates

388

Load identification

1 Load identification

i For illustration purposes only. Actual data on tires are specific to each vehicle and may vary from data shown in above illustration.

Operation Tires and wheels

In addition to tire load rating, special load information may be molded into the tire sidewall following the letter designating the tire speed rating 1 (컄 page 385). No specification given: absence of any text (like in above example) indicates a standard load (SL) tire. XL or Extra Load: designates an extra load (or reinforced) tire. Light Load: designates a light load tire. C, D, E: designates load range associated with the maximum load a tire can carry at a specified pressure.

DOT, Tire Identification Number (TIN)

U.S. tire regulations require each new tire manufacturer or tire retreader to mold a TIN into or onto a sidewall of each tire produced. The TIN is a unique identifier which facili- tates efforts by tire manufactures to notify purchasers in recall situations or other safety matters concerning tires and gives purchasers the means to easily identify such tires. The TIN is comprised of “Manufacturer’s identification mark”, “Tire size”, “Tire type code” and “Date of manufacture”.

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Operation Tires and wheels

1 DOT 2 Manufacturer’s identification mark 3 Tire size 4 Tire type code (at the option of the tire

manufacturer)

5 Date of manufacture

i For illustration purposes only. Actual data on tires are specific to each vehicle and may vary from data shown in above illustration.

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DOT (Department of Transportation) A tire branding symbol 1 (컄 page 390) which denotes the tire meets require- ments of the U.S. Department of Transpor- tation.

Tire type code The code 4 (컄 page 390) may, at the option of the manufacturer, be used as a descriptive code for identifying significant characteristics of the tire.

Manufacturer’s identification mark The manufacturer’s identification mark 2 (컄 page 390) denotes the tire manufacturer. New tires have a mark with two symbols. Retreaded tires have a mark with four sym- bols. For more information on retreaded tires, see (컄 page 365).

Tire size The code 3 (컄 page 390) indicates the tire size.

Date of manufacture The date of manufacture 5 (컄 page 390) identifies the week and year of manufac- ture. The first two figures identify the week, starting with “01” to represent the first full week of the calendar year. The second two figures represent the year. For example, “3202” represents the 32nd week of 2002.

Maximum tire load

Warning!

Maximum tire inflation pressure

Operation Tires and wheels

Do not overload the tires by exceeding the specified load limit as indicated on the plac- ard located on the driver’s door B-pillar. Overloading the tires can overheat them, possibly causing a blowout. Overloading the tires can also result in handling or steering problems, or brake failure.

For more information on tire load rating (컄 page 386). For information on calculating total and cargo load capacities (컄 page 370).

1 Maximum tire load rating

i For illustration purposes only. Actual data on tires are specific to each vehicle and may vary from data shown in above illustration.

The maximum tire load is the maximum weight the tires are designed to support.

1 Maximum permissible tire inflation

pressure

i For illustration purposes only. Actual data on tires are specific to each vehicle and may vary from data shown in above illustration.

This is the maximum permissible tire inflation pressure for the tire.

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Quality grades can be found, where appli- cable, on the tire sidewall between tread shoulder and maximum section width. For example:

Treadwear Traction Temperature 200

AA

All passenger car tires must conform to federal safety requirements in addition to these grades.

Operation Tires and wheels

Always follow the recommended tire inflation pressure (컄 page 374) for proper tire inflation.

Warning!

Never exceed the max. tire inflation pressure. Follow recommended tire inflation pressures.

Do not underinflate tires. Underinflated tires wear excessively and/or unevenly, adverse- ly affect handling and fuel economy, and are more likely to fail from being overheated.

Do not overinflate tires. Overinflated tires can adversely affect handling and ride com- fort, wear unevenly, increase stopping dis- tance, and result in sudden deflation (blowout) because they are more likely to become punctured or damaged by road de- bris, potholes etc.

392

Uniform Tire Quality Grading Standards (U.S. vehicles)

Tire manufacturers are required to grade tires based on three performance factors: treadwear, traction and temperature resistance.

1 Treadwear 2 Traction 3 Temperature resistance

i For illustration purposes only. Actual data on tires are specific to each vehicle and may vary from data shown in above illustration.

Operation Tires and wheels

Treadwear The treadwear grade is a comparative rat- ing based on the wear rate of the tire when tested under controlled conditions on a specified government test course. For ex- ample, a tire graded 150 would wear one and one-half (1 1/2) times as well on the government course as a tire graded 100. The relative performance of tires depends upon the actual conditions of their use, however, and may depart significantly from the norm due to variations in driving habits, service practices and differences in road characteristics and climate.

Traction The traction grades, from highest to low- est, are AA, A, B, and C. Those grades rep- resent the tire’s ability to stop on wet pavement as measured under controlled conditions on specified government test surfaces of asphalt and concrete. A tire marked C may have poor traction perfor- mance.

Warning!

The traction grade assigned to this tire is based on straight-ahead braking traction tests, and does not include acceleration, cornering, hydroplaning, or peak traction characteristics.

Temperature The temperature grades are A (the high- est), B, and C, representing the tire’s resis- tance to the generation of heat and its ability to dissipate heat when tested under controlled conditions on a specified indoor laboratory test wheel. Sustained high tem- perature can cause the material of the tire to degenerate and reduce tire life, and ex- cessive temperature can lead to sudden tire failure. The grade C corresponds to a level of performance which all passenger car tires must meet under the Federal Motor Vehicle Safety Standard No. 109. Grades B and A represent higher levels of performance on the laboratory test wheel than the minimum required by law.

393

Operation Tires and wheels

Warning!

Tire ply material

The temperature grade for this tire is estab- lished for a tire that is properly inflated and not overloaded. Excessive speed, underin- flation, or excessive loading, either sepa- rately or in combination, can cause excessive heat build-up and possible tire failure.

1 Plies in sidewall 2 Plies under tread

i For illustration purposes only. Actual data on tires are specific to each vehicle and may vary from data shown in above illustration.

This marking tells you about the type of cord and number of plies in the sidewall and under the tread.

Tire and loading terminology

Accessory weight The combined weight (in excess of those standard items which may be replaced) of automatic transmission, power steering, power brakes, power windows, power seats, radio, and heater, to the extent that these items are available as factory-installed equipment (whether installed or not).

Air pressure The amount of air inside the tire pressing outward on each square inch of the tire. Air pressure is expressed in pounds per square inch (psi), or kilopascal (kPa) or bars.

Aspect ratio Dimensional relationship between tire section height and section width expressed in percentage.

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DOT (Department of Transportation) A tire branding symbol which denotes the tire meets requirements of the U.S. Department of Transportation.

GAWR (Gross Axle Weight Rating) The GAWR is the maximum permissible axle weight. The gross vehicle weight on each axle must never exceed the GAWR for the front and rear axle indicated on the certification label located on the driver’s door B-pillar.

GTW (Gross Trailer Weight) The GTW is the weight of the trailer plus the weight of all cargo, equipment, luggage etc. loaded on the trailer.

Bar Another metric unit for air pressure. There are 14.5038 pounds per square inch (psi) to 1 bar; there are 100 kilopascals (kPa) to 1 bar.

Bead The tire bead contains steel wires wrapped by steel cords that hold the tire onto the rim.

Cold tire inflation pressure Tire inflation pressure when your vehicle has been sitting for at least 3 hours or driven no more than 1 mile (1.6 km).

Curb weight The weight of a motor vehicle with stan- dard equipment including the maximum capacity of fuel, oil, and coolant, and, if so equipped, air conditioning and additional optional equipment, but without passen- gers and cargo.

Operation Tires and wheels

GVW (Gross Vehicle Weight) The GVW comprises the weight of the vehicle including fuel, tools, spare wheel, installed accessories, passengers and cargo and, if applicable, trailer tongue load. The GVW must never exceed the GVWR indicated on the certification label located on the driver’s door B-pillar.

GVWR (Gross Vehicle Weight Rating) This is the maximum permissible vehicle weight of the fully loaded vehicle (weight of the vehicle including all options, passen- gers, fuel, and cargo and, if applicable, trailer tongue load). It is indicated on certification label located on the driver’s door B-pillar.

Kilopascal (kPa) The metric unit for air pressure. There are 6.9 kPa to 1 psi; another metric unit for air pressure is bars. There are 100 kilopascals (kPa) to 1 bar.

395

Operation Tires and wheels

Maximum load rating The maximum load in kilograms and pounds that can be carried by the tire.

Maximum loaded vehicle weight The sum of curb weight, accessory weight, total load limit, and production options weight.

Maximum tire inflation pressure This number is the greatest amount of air pressure that should ever be put in the tire under normal driving conditions.

Normal occupant weight The number of occupants the vehicle is designed to seat, multiplied by 68 kilograms (150 lbs).

Occupant distribution The distribution of occupants in a vehicle at their designated seating positions.

396

Production options weight The combined weight of those installed regular production options weighing over 5 lbs (2.3 kilograms) in excess of those standard items which they replace, not previously considered in curb weight or accessory weight, including heavy duty brakes, ride levelers, roof rack, heavy duty battery, and special trim.

PSI (Pounds per square inch) A standard unit of measure for air pressure -> bar, kilopascal (kPa).

Recommended tire inflation pressure Recommended tire inflation pressure listed on placard located on driver’s door B-pillar for normal driving conditions. Provides best handling, tread life and riding comfort.

Rim A metal support for a tire or a tire and tube assembly upon which the tire beads are seated.

Sidewall The portion of a tire between the tread and the bead.

TIN (Tire Identification Number) Unique identifier which facilitates efforts by tire manufacturers to notify purchasers in recall situations or other safety matters concerning tires and gives purchases the means to easily identify such tires. The TIN is comprised of “Manufacturer’s identifica- tion mark”, “Tire size”, “Tire type code” and “Date of manufacture”.

Tire load rating Numerical code associated with the maximum load a tire can support.

Tire ply composition and material used This indicates the number of plies or the number of layers of rubber-coated fabric in the tire tread and sidewall. Tire manufac- turers also must indicate the ply materials in the tire and sidewall, which include steel, nylon, polyester, and others.

Tire speed rating Part of tire designation; indicates the speed range for which a tire is approved.

Traction Force exerted by the vehicle on the road via the tires. The amount of grip provided.

Tread The portion of a tire that comes into contact with the road.

Operation Tires and wheels

Treadwear indicators Narrow bands, sometimes called “wear bars” that show across the tread of a tire when only 1/16 in (1.6 mm) of tread remains.

Vehicle maximum load on the tire Load on an individual tire that is determined by distributing to each axle its share of the maximum loaded vehicle weight and dividing it by two.

TWR (Tongue Weight Rating) Maximum permissible weight on trailer tongue.

Rotating tires

Warning!

Uniform Tire Quality Grading Standards A tire information system that provides consumers with ratings for a tire’s traction, temperature and treadwear. Ratings are determined by tire manufacturers using government testing procedures. The ratings are molded into the sidewall of the tire.

Rotate front and rear wheels only if they are of the same dimension.

If your vehicle is equipped with mixed-size tires (different tire dimensions front vs. rear), tire rotation is not possible.

Tire rotation can be performed on vehicles with tires of the same dimension all around. If your vehicle is equipped with tires of the same dimension all around, tires can be rotated, observing a front-to-rear rotation pattern that will maintain the intended rotation (spinning) direction of the tire (컄 page 368).

397

Warning!

Have the tightening torque checked after changing a wheel. Wheels could become loose if not tightened with a torque of 110 lb-ft (150 Nm).

Only use genuine Mercedes-Benz wheel bolts specified for your vehicle’s rims.

For information on wheel change, see the “Practical hints” section (컄 page 469) and (컄 page 497).

Operation Tires and wheels

In some cases, such as when your vehicle is equipped with mixed-size tires (different tire dimension front vs. rear), tire rotation is not possible. If applicable to your vehicle’s tire configu- ration, tires can be rotated according to the tire manufacturer’s recommended in- tervals in the tire manufacturer’s warranty pamphlet located in your vehicle literature portfolio. If none is available, tires should be rotated every 3000 to 6000 miles (5000 to 10000 km), or sooner if neces- sary, according to the degree of tire wear. The same rotation (spinning) direction must be maintained (컄 page 368). Rotate tires before the characteristic tire wear pattern becomes visible (shoulder wear on front tires and tread center wear on rear tires). Thoroughly clean the mounting face of wheels and brake disks, i.e. the inner side of the wheels/tires, during each rotation. Check for and ensure proper tire inflation pressure.

398

왔 Winter driving Before the onset of winter, have your vehicle winterized at an authorized Mercedes-Benz Light Truck Center. This service includes: 앫 Check of anticorrosion and antifreeze

concentration.

앫 Addition of cleaning concentrate to the water of the windshield and headlamp cleaning system. Add MB Concentrate “MB SummerFit” to a premixed wind- shield washer solvent/antifreeze which is formulated for temperatures below freezing point (컄 page 551). 앫 Battery test. Battery capacity drops

with decreasing ambient temperature. A well charged battery helps to make sure that the engine can be started even at low ambient temperatures. 앫 Tire change. Mercedes-Benz recom-

mends M+S rated radial-ply tires with a minimum tread depth of approximately 1/6 in (4 mm) on all four wheels for the winter season.

Winter tires

Always use winter tires at temperatures below 45°F (7°C) and whenever wintry road conditions prevail. Not all M+S rated tires provide special winter performance. Make sure the tires you use show the mountain/snowflake.marking on the tire sidewall. These tires meet specific snow traction performance requirements of the Rubber Manufacturers Association (RMA) and The Rubber Association of Can- ada (RAC) and have been designed specif- ically for use in snow conditions. Use of winter tires is the only way to achieve the maximum effectiveness of the ABS, ESP®, 4-ETS, and EBP in winter operation. For safe handling, make sure all mounted winter tires are of the same make and have the same tread design.

Operation Winter driving

Warning!

Winter tires with a tread depth under 1/6 in (4 mm) must be replaced. They are no long- er suitable for winter operation.

Always observe the speed rating of the winter tires installed on your vehicle. If the maximum speed for which your tires are rated is below the speed rating of your vehicle, you must place a notice to this effect where it will be seen by the driver. Such notices are available from your tire dealer or from any authorized Mercedes-Benz Light Truck Center.

399

Operation Winter driving

Warning!

Snow chains

If you use your spare tire when winter tires are fitted on the other wheels, be aware that the difference in tire characteristics may very well impair turning stability and that overall driving stability may be reduced. Adapt your driving style accordingly.

Have the spare tire replaced with a winter tire at the nearest authorized Mercedes-Benz Light Truck Center.

Block heater (Canada only)

The engine is equipped with a block heater. The electrical cable may be installed at an authorized Mercedes-Benz Light Truck Center.

! Even on vehicles with all-wheel-drive use snow chains on rear tires only. Some tire sizes do not leave adequate clearance for snow chains. To help avoid serious damage to your vehicle or tires, use of snow chains is not permissible with the spare wheel.

! Vehicles with air suspension package*: When driving with snow chains, do not select SPORT mode (컄 page 269).

i When driving with snow chains, you may wish to deactivate the ESP® (컄 page 99) before setting the vehicle in motion. This will improve the vehicle’s traction.

Snow chains should only be driven on snow-covered roads at speeds not to exceed 30 mph (50 km/h). Remove chains as soon as possible when driving on roads without snow.

Please observe the following guidelines when using snow chains: 앫 Use of snow chains is not permissible

with all wheel/tire combinations (컄 page 536).

앫 Snow chains should only be used on the rear wheels. Follow the manufac- turer’s mounting instructions. 앫 Only use snow chains that are

approved by Mercedes-Benz. Your authorized Mercedes-Benz Light Truck Center will be glad to advise you on this subject.

앫 Use of snow chains may be prohibited depending on location. Always check local and state laws before installing snow chains.

앫 Do not use snow chains on the spare

wheel (컄 page 538).

400

왔 Maintenance We strongly recommend that you have your vehicle serviced by an authorized Mercedes-Benz Light Truck Center, in accordance with the Maintenance Booklet at the times called for by the maintenance service indicator display. Failure to have the vehicle maintained in accordance with the Maintenance Booklet and maintenance service indicator at the designated times/mileage will result in vehicle damage not covered by the Mercedes-Benz Limited Warranty.

Maintenance service indicator message

The maintenance service indicator mes- sage will notify you when your next mainte- nance service is due.

Starting approximately 1 month before your next maintenance service is due, one of the following messages will appear in the multifunction display while you are driving or when you switch on the ignition (example service A):

Service A in XXXXX miles (km) Service A in XXX days Service A in X day Service A due now The maintenance services will be indicated by showing a service type A through type H in the multifunction display. Types A through H are classified based on estimat- ed time needed to perform the mainte- nance service, ranging: from

Service A (approx. 1 hour)

to

Service H (approx. 8 hours)

Operation Maintenance

Refer to Maintenance Booklet for a listing of maintenance services and intervals they need to be performed at.

i Vehicles equipped with Vehicle Maintenance System only (U.S. vehicles): The Vehicle Maintenance System in your vehicle tracks distance driven and the time elapsed since your last maintenance service and calcu- lates other maintenance service work required.

401

Operation Maintenance

i Vehicles equipped with FSS PLUS (Flexible Service System PLUS) only (Canada vehicles): 앫 FSS PLUS evaluates engine temperature, oil level, vehicle speed, engine speed, distance driven and the time elapsed since your last service and calculates other maintenance service work required.

앫 The interval between maintenance services depends on your driving habits. A gentle driv- ing style, moderate engine speeds and the avoidance of short-distance trips will length- en the interval between services.

Clearing the maintenance service indicator message The maintenance service indicator mes- sage is automatically cleared 앫 after approximately 10 seconds when

you switch on the ignition or when reaching the maintenance service threshold while driving

앫 after approximately 30 seconds, once

the suggested maintenance service term has passed

402

You can also clear it yourself:

1 Reset button 왘 Press reset button 1 on the instru-

ment cluster. The maintenance service indicator message is cleared and the standard display appears in the multifunction display (컄 page 154).

Maintenance service term exceeded If you have exceeded the suggested main- tenance service term, you will see the fol- lowing message in the multifunction display:

Service A exceeded by XXXXX miles (km) Service A exceeded by XXX days Service A exceeded by X day In addition, a signal sounds when the message appears. Any authorized Mercedes-Benz Light Truck Center will reset the maintenance service indicator following a completed mainte- nance service.

Calling up the maintenance service indicator display

You can call up the maintenance service in- dicator display at any time to check when the next maintenance service is due. 왘 Switch on the ignition (컄 page 40). 왘 Press button è or ÿ on the mul-

tifunction steering wheel repeatedly until the standard display appears in the multifunction display (컄 page 154).

왘 Press button k or j until the

maintenance service indicator display with the service symbol 9 and the service deadline appears in the multi- function display.

i If the battery is disconnected, the days of disconnection will not be included in the count shown by the maintenance service indicator.

Operation Maintenance

To arrive at the true maintenance service dead- line, you will need to subtract these days from the days shown in the maintenance service indi- cator message or maintenance service indicator display. Do not confuse the maintenance service indica- tor with the engine oil level indicator N.

Resetting the maintenance service indicator

i If the maintenance service indicator was inadvertently reset, have an authorized Mercedes-Benz Light Truck Center correct it. Only reset if the proper maintenance service has been performed. Resetting the system without performing the proper service as called for by the maintenance service indicator will result in engine damage and/or other vehicle damage not covered by the Mercedes-Benz Limited Warranty.

In the event that the maintenance service on your vehicle is not carried out by an authorized Mercedes-Benz Light Truck Center, you can have the maintenance service indicator reset. The automotive maintenance facility carrying out the maintenance service will find the informa- tion for resetting the maintenance service indicator in the maintenance-relevant information for your vehicle. Such informa- tion is available from either your authorized Mercedes-Benz Light Truck Center or directly from Mercedes-Benz.

403

Operation Vehicle care

Cleaning and care of the vehicle

Regular and proper care will help to maintain the value of your vehicle. The best way to protect your vehicle from harmful environmental influences is to wash it and use protective treatments regularly.

Warning!

Many cleaning products can be hazardous. Some are poisonous, others are flammable. Always follow the instructions on the partic- ular container. Always open your vehicle’s doors or windows when cleaning the inside.

Never use fluids or solvents that are not de- signed for cleaning your vehicle.

Always lock away cleaning products and keep them out of reach of children.

404

Frequent washing reduces and/or eliminates the aggressiveness and potency of the above adverse influences. More frequent washings are necessary to deal with unfavorable conditions: 앫 near the ocean 앫 in industrial areas (smoke, exhaust

emissions)

앫 during winter operation You should check your vehicle from time to time for stone chipping or other damage. Any damage should be repaired as soon as possible to prevent corrosion. In doing so, do not neglect the underbody of the vehicle. A prerequisite for a thor- ough check is a washing of the underbody followed by a thorough inspection. Dam- aged areas need to be re-undercoated.

While in operation, even while parked, your vehicle is subjected to varying external in- fluences which, if gone unchecked, can at- tack the paintwork as well as the underbody and cause lasting damage. Such damage is caused not only by extreme and varying climatic conditions, but also by: 앫 Air pollution 앫 Road salt 앫 Tar 앫 Gravel and stone chipping To avoid paint damage, you should immediately remove: 앫 Grease and oil 앫 Fuel 앫 Coolant 앫 Brake fluid 앫 Bird droppings 앫 Insects 앫 Tree resins, etc.

Operation Vehicle care

Your vehicle has been treated at the facto- ry with a wax-base rustproofing in the body cavities which will last for the lifetime of the vehicle. Post-production treatment is neither necessary nor recommended by Mercedes-Benz because of the possibility of incompatibility between materials used in the production process and others ap- plied later. We have selected car-care products and compiled recommendations which are specially matched to our vehicles and which always reflect the latest technology. You can obtain Mercedes-Benz approved car-care products at an authorized Mercedes-Benz Light Truck Center. Scratches, corrosive deposits, corrosion or damage due to negligent or incorrect care cannot always be removed or repaired with the car-care products recommended here. In such cases it is best to seek aid at an authorized Mercedes-Benz Light Truck Center.

The following topics deal with the cleaning and care of your vehicle and give important “how-to” information as well as references to Mercedes-Benz approved car-care products.

Tar stains Quickly remove tar stains before they dry and become more difficult to remove. A tar remover is recommended.

Paintwork, painted body components

! Affixing stickers, magnets, adhesive tape or similar materials to painted body components may damage the paintwork.

Mercedes-Benz approved Paint Care should be applied when water drops on the paint surface do not “bead up”. This should normally be done every 3 to 5 months, depending on the climate and washing detergent used. Mercedes-Benz approved Paint Cleaner should be applied if the paint surface shows signs of dirt embedding (i.e. loss of gloss).

Power washer

! Follow the instructions provided by the power washer manufacturer on maintaining a distance between the vehicle and the nozzle of the power washer. Never use a round nozzle to power-wash tires. The intense jet of water can result in damage to the tire. Always replace a damaged tire. Always keep the jet of water moving across the surface. Do not aim directly at electrical parts, electrical connectors, seals, or other rubber parts.

i Vehicles with KEYLESS-GO*: If a door handle is hit by a strong jet of water, and a SmartKey with KEYLESS-GO* is in close proximity, i.e. within approximately 3 ft (approxi- mately 1 m), the vehicle could be inadvertently locked or unlocked.

405

Operation Vehicle care

Do not apply any of these products or wax if your vehicle is parked in the sun or if the hood is still hot. 왘 Use the appropriate MB-Touch-Up

Stick for quick and provisional repairs of minor paint damage (i.e. chips from stones, vehicle doors, etc.).

Engine cleaning Prior to cleaning the engine compartment make sure to protect electrical compo- nents and connectors from the intrusion of water and cleaning agents. Corrosion protection, such as MB Anticorrosion Wax, should be applied to the engine compartment after every en- gine cleaning. Before applying, all control linkage bushings and joints should be lu- bricated. The poly-V-belt and all pulleys should be protected from any wax.

Vehicle washing In the winter, thoroughly remove all traces of road salt as soon as possible. When washing the vehicle underbody, do not forget to clean the inner sides of the wheels.

i Vehicles with KEYLESS-GO*: If a door handle is hit by a strong jet of water, and a SmartKey with KEYLESS-GO* is in close proximity, i.e. within approximately 3 ft (approxi- mately 1 m), the vehicle could be inadvertently locked or unlocked.

Hand-wash Do not use hot water or wash your vehicle in direct sunlight. 왘 Only use a mild car wash detergent,

such as Mercedes-Benz approved Car Shampoo.

왘 Thoroughly spray the vehicle with a dif-

fused jet of water. Direct only a very weak spray towards the ventilation intake.

왘 Use plenty of water and rinse the

sponge and chamois frequently.

왘 Rinse with clean water and thoroughly

dry with a chamois. Do not allow cleaning agents to dry on the finish.

! Do not use scouring agents on these parts. Never apply strong force and only use a soft, non-sratching cloth when cleaning the vehicle. Do not attempt to wipe the surface with a dry cloth or sponge. Otherwise you may scratch or damage the paint.

406

Operation Vehicle care

Automatic car wash You can have your car washed in an auto- matic car wash from the start. Automatic car washes without brushes are prefera- ble. 왘 To protect the filter system, switch the climate control (컄 page 208) or the au- tomatic climate control (컄 page 222) to air recirculation mode.

! Do not clean your vehicle in an automatic touchless car wash which use caustic spray. Otherwise the caustic spray will damage the paint or ornamental moldings.

If the vehicle is very dirty, prewash it before running it through the automatic car wash.

! If you want the gear position to remain in N (for example when the vehicle is pulled through a car wash) 앫 do not remove the SmartKey from the starter

switch

or, when using KEYLESS-GO* 앫 do not turn off the engine using the

KEYLESS-GO start/stop button* and open the driver’s door.

Otherwise, the transmission will shift to P and lock the wheels, preventing the vehicle from be- ing pulled through a car wash.

! Make sure that the windshield wiper switch is set to 0 (컄 page 61). Otherwise, e.g. the rain sensor could activate and cause the wipers to move unintentionally. This may lead to vehicle damage. Due to the width of the vehicle, fold in exterior rear view mirrors prior to running the vehicle through an automatic car wash to prevent damage to the mirrors.

i After running the vehicle through an auto- matic car wash, wipe any wax off of the wind- shield (컄 page 410). This will prevent smears and reduce wiping noise which can be caused by residual wax on the windshield. When leaving the car wash, make sure that the mirrors are folded out. Otherwise they may vibrate.

Ornamental moldings For regular cleaning and care of ornamen- tal moldings, use a damp cloth.

! Do not use chrome cleaner on ornamental moldings. Although ornamental moldings may have chrome appearance, they could be made of anodized aluminum that will be damaged when cleaned with chrome cleaner. Instead, use a damp cloth to clean those ornamental moldings. For very dirty ornamental moldings of which you are sure are chrome-plated, use a chrome clean- er. If in doubt whether an ornamental molding is chrome-plated, contact an authorized Mercedes-Benz Light Truck Center.

407

Operation Vehicle care

Headlamps, brake lamps, tail lamps, side markers, turn signal lenses 왘 Use a mild car wash detergent, such as

Mercedes-Benz approved Car Sham- poo, with plenty of water.

! Only use window cleaning solutions that are suitable for plastic lamp lenses. Window clean- ing solutions which are not suitable may damage the plastic lamp lenses of the headlamps. There- fore, do not use abrasives, solvents or cleaners that contain solvents. Never apply strong force and only use a soft, non-scratching cloth when cleaning the lenses. Do not attempt to wipe dirty lenses with a dry cloth or sponge. Otherwise you may scratch or damage the lens surface.

408

Cleaning the Distronic* system sensor cover

왘 Restart the engine after cleaning sen-

sor cover 1.

Cleaning the Parktronic* system sensors

1 Distronic* system sensor cover 왘 Switch off the ignition (컄 page 40). 왘 Use a mild car wash detergent, such as

Mercedes-Benz approved Car Sham- poo, with plenty of water and a non-scratching cloth to clean sensor cover 1.

! To prevent scratches or damage, never apply strong force and only use a soft, non-scratchy cloth when cleaning the sensor cover 1. Do not attempt to wipe dirty sensors with a dry cloth or sponge.

1 Parktronic* system sensors in front

bumper

왘 Use a mild car wash detergent, such as

Mercedes-Benz approved Car Sham- poo, with plenty of water and a soft, non-scratching cloth to clean sensors 1 on the bumpers.

! Do not apply strong pressure to the sensor covers. Applying strong pressure may damage the sensor covers. Follow the instructions provided by the power washer manufacturer on maintaining a distance between the vehicle and the nozzle of the power washer.

! To prevent scratches, never apply strong force and only use a soft, non-scratching cloth when cleaning the sensors. Do not attempt to wipe dirty sensors with a dry cloth or sponge.

Cleaning the Rear View Camera lens*

1 Camera lens 왘 Only use clean water and a soft, non-scratching cloth to clean the camera lens 1.

Be careful not to apply wax to camera lens 1 when waxing the vehicle. If necessary, remove the wax using the Mercedes-Benz approved Car Shampoo with plenty of water.

Operation Vehicle care

! Do not clean the camera and the area around the camera: 앫 with a high-pressure cleaner 앫 with a dry cloth and high pressure 앫 with aggressive cleaning agents You could otherwise damage the camera.

409

Operation Vehicle care

Cleaning the windows and the wiper blades

Warning!

For safety reasons, switch off wipers and re- move SmartKey from starter switch (vehicles with KEYLESS-GO*: Make sure the vehicle’s on-board electronics have status 0) before cleaning the windshield and/or the wiper blades. Otherwise, the wiper motor could suddenly turn on and cause injury.

왘 Fold the wiper arms forward until they

engage.

! Do not pull on the wiper blade inserts. They could tear. 왘 Clean the wiper blade inserts with a

clean cloth and detergent solution.

410

왘 Use a soft, clean cloth and a mild win-

dow cleaning solution on all outside and inside glass surfaces. An automotive glass cleaner is recom- mended.

! Fold the windshield wiper arms back onto the windshield before turning the SmartKey in the starter switch or pressing the KEYLESS-GO start/stop button (vehicles with KEYLESS-GO*). Hold on to the wiper when folding the wiper arm back. If released, the force of the impact from the tensioning spring could crack the windshield.

! To clean the window interior, do not use a dry cloth, abrasives, solvents or cleaners con- taining solvents. Do not touch the inside of the front, rear or side windows and the power tilt/sliding sunroof* or rear panorama roof with hard objects such as an ice scraper or ring. Doing so may damage the windows.

Light alloy wheels If possible, clean wheels once a week. 왘 Use Mercedes-Benz approved Wheel Care, a soft bristle brush and a strong spray of water for cleaning the light al- loy wheels.

! Only use acid-free cleaning materials. Acid may cause corrosion or damage the clear coat.

! The vehicle should not be parked for an ex- tended period of time immediately after it has been cleaned, especially not after the wheel rims have been cleaned with wheel rim cleaner. Wheel rim cleaners can lead to increased corrosion of the brake disks and brake pads. Non-approved wheel cleaners may also damage the wheel paint if the car is not driven after cleaning. Therefore, the vehicle’s brake system should always be warmed-up before it is parked after cleaning. To do so, please drive your vehicle for several minutes to allow the brakes to dry. When applying Mercedes-Benz approved Tire Care and Mercedes-Benz approved Wheel Care products, take care not to spray them on the brake disks.

Plastic and rubber parts 왘 Use a gentle dishwashing detergent or mild detergent for delicate fabrics as a washing solution.

왘 Wipe with a cloth moistened in a

lukewarm solution. The surface may temporarily change color. If this is the case, wait for it to dry.

Warning!

Do not use cleaners containing solvents or cockpit care sprays to clean the cockpit or the steering wheel. Cleaners containing sol- vents will make the surface porous and vehi- cle occupants could suffer serious injuries from plastic parts coming loose in the event of air bag deployment.

! Do not use oil, wax or scouring agents on these parts. Never apply strong force and only use a soft, non-scratching cloth when cleaning the surface. Do not attempt to wipe the surface with a dry cloth or sponge. Otherwise you may scratch or damage the surface.

Hard plastic trim items 왘 Use Mercedes-Benz approved Interior Care, a soft, lint-free cloth and apply with light pressure.

! Never apply strong force and only use a soft, non-scratching cloth when cleaning the surface. Do not attempt to wipe the surface with a dry cloth or sponge. Otherwise you may scratch or damage the surface.

Operation Vehicle care

Steering wheel 왘 Wipe with a damp cloth and dry thor- oughly or clean with Mercedes-Benz approved Leather Care.

Carpets 왘 Use Mercedes-Benz approved Carpet and Fabric Care for cleaning the car- pets.

Headliner 왘 Use a soft bristle brush or a

dry-shampoo cleaner in case of excessive dirt.

411

Operation Vehicle care

Seat belts 왘 Only use clear, lukewarm water and

Warning!

Only use seat or head restraint covers which have been tested and approved by Mercedes-Benz for your vehicle model. Using other seat or head restraint covers may interfere with or prevent the activation of the active head restraints. Contact an authorized Mercedes-Benz Light Truck Center for availability.

Leather upholstery* Please not that leather upholstery is a natural product and is therefore subject to a natural aging process. Leather uphol- stery may also react to certain ambient influences such as high humidity or high temperature by showing wrinkles for example.

soap.

! The seat belts must not be treated with chemical cleaning agents. Do not dry the seat belts at temperatures above 176°F (80°C) or in direct sunlight.

Warning!

Do not bleach or dye seat belts as this may severely weaken them. In a crash they may not be able to provide adequate protection.

Upholstery Using aftermarket seat covers or wearing clothing that have the tendency to give off coloring (e.g. when wet, etc.) may cause the upholstery to become permanently dis- colored. By lining the seats with a proper intermediate cover, contact-discoloration will be prevented.

412

왘 Wipe leather upholstery with a damp cloth and dry thoroughly or clean with Mercedes-Benz approved Leather Care.

! Wipe with light pressure to avoid damage to the upholstery.

Exercise particular care when cleaning perforated leather as its underside should not become wet.

MB Tex upholstery 왘 Use Mercedes-Benz approved Interior

Care onto a soft, lint-free cloth and apply with light pressure for cleaning the upholstery.

Wood trims 왘 Dampen cloth using water and use

damp cloth to clean wood trims in your vehicle.

! Do not use solvents like tar remover or wheel cleaner nor polishes or waxes as these may be abrasive.

Practical hints

What to do if … Where will I find ...? Unlocking/locking in an emergency Opening/closing in an emergency Resetting activated head restraints Replacing SmartKey batteries Replacing bulbs Replacing wiper blades Flat tire Bleeding the fuel system (diesel engine only) Battery Jump starting Towing the vehicle Fuses

413

Practical hints What to do if …

Lamps in instrument cluster

Problem - The yellow ABS indicator lamp comes on while the engine is running.

414

General information: If any of the following lamps in the instru- ment cluster fails to come on during the

bulb self-check when switching on the ignition, have the respective bulb checked and replaced if necessary.

Possible cause/consequence ABS has detected a malfunction and has switched off. The BAS, ESP®, EBP and 4-ETS are also switched off (see messages in multi- function display). The brake system is still functioning normally but without the ABS available. If the ABS control unit is malfunctioning, other systems such as the navigation system* or the automatic transmission may also be malfunctioning.

The charging voltage has fallen below 10 volts. The ABS has switched off. The battery might not be charged sufficiently.

Suggested solution 왘 Continue driving with added caution. Wheels may lock during hard braking, reducing steering capability.

왘 Read and observe messages in the multifunction display (컄 page 428).

왘 Have the system checked at an authorized Mercedes-Benz Light Truck Center as soon as possible.

Failure to follow these instructions increases the risk of an accident. When the voltage is above this value again, the ABS is operational again and the ABS indicator lamp should go out. If the ABS indicator lamp should go out: 왘 Have the generator (alternator) and

the battery checked.

Problem

; (USA only) 3 (Canada only)

The red brake warning lamp comes on while driving and you hear a warning sound.

Possible cause/conse- quence You are driving with the parking brake set.

Suggested solution

왘 Release the parking brake

(컄 page 57).

Practical hints What to do if …

There is insufficient brake fluid in the reservoir.

Warning!

Driving with the brake warning lamp illumi- nated can result in an accident. Have your brake system checked immediately if the brake warning lamp stays on.

Do not add brake fluid before checking the brake system. Overfilling the brake fluid res- ervoir can result in spilling brake fluid on hot engine parts and the brake fluid catching fire. You can be seriously burned.

왘 Risk of accident! Carefully stop the

vehicle in a safe location or as soon it is safe to do so.

왘 Apply the parking brake (컄 page 65). 왘 Notify an authorized Mercedes-Benz Light Truck Center. Do not add brake fluid! This will not solve the problem.

! If you find that the brake fluid in the brake fluid reservoir has fallen to the minimum mark or below, have the brake system checked for brake pad thickness and leaks.

415

Possible cause/conse- quence A malfunction in the Electronic Brake Proportioning (컄 page 101) was detected.

Suggested solution

왘 Have the system checked at an autho-

rized Mercedes-Benz Light Truck Center as soon as possible.

Failure to follow these instructions increases the risk of an accident.

The red brake warning lamp comes on while driving. In ad- dition, the yellow ABS malfunc- tion indicator lamp, and the yellow ESP® warning lamp come on and a warning will sound.

Practical hints What to do if …

Problem

; (USA only) 3 (Canada only)

416

Practical hints What to do if …

Possible cause/consequence Suggested solution There is a malfunction in: 앫 The fuel management system 앫 The ignition system 앫 The emission control system 앫 Systems which affect

왘 Have the vehicle checked as soon as

possible by an authorized Mercedes-Benz Light Truck Center. An on-board diagnostic connector is used by the service station to link the vehicle to the shop diagnostics system. It allows the accurate identi- fication of system malfunctions through the readout of diagnostic trouble codes. It is located in the front left area of the footwell next to the parking brake pedal.

Problem ? (USA only) ± (Canada only)

The yellow engine malfunc- tion indicator lamp comes on while driving.

emissions

Such malfunctions may result in excessive emissions values and may switch the engine to its limp-home (emergency opera- tion) mode (컄 page 198).

i Some states may by law require you to visit a workshop immediately as soon as the engine malfunction indicator lamp comes on. Check local requirements.

417

Practical hints What to do if …

Problem

? (USA only) ± (Canada only)

The yellow engine malfunction indicator lamp comes on while driving.

Possible cause/conse- quence A loss of pressure has been detected in the fuel system.