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overheat. The tire inflation compressor can be operated again once it has cooled down.
If a pressure of 200 kPa (2.0 bar/29 psi) has been attained after a maximum of after ten minutes, see (Y page 284). If a pressure of 200 kPa (2.0 bar/29 psi) has not been attained after a maximum of ten minutes, see (Y page 284). i If tire sealant leaks out, allow it to dry. It
can then be removed like a layer of film. If your clothes are soiled with tire sealant, have them cleaned with perchloroethylene at a dry cleaner as soon as possible.
Tire pressure not reached If a pressure of 200 kPa (2.0 bar/29 psi) has not been achieved after ten minutes: X Switch off the tire inflation compressor. X Unscrew the filler hose from the valve of
the faulty tire.
X Very slowly drive forwards or reverse
approximately 30 ft (10 m).
X Pump up the tire again.
After a maximum of ten minutes, the tire pressure must be at least 200 kPa (2.0 bar/ 29 psi).
G WARNING If the required tire pressure is not reached after the specified time, the tire is too badly damaged. The tire sealant cannot repair the tire in this instance. Damaged tires and a tire pressure that is too low can significantly impair the vehicle's braking and driving characteristics. There is a risk of accident. Do not continue driving. Contact a qualified specialist workshop.
Tire pressure reached G WARNING A tire temporarily sealed with tire sealant impairs the driving characteristics and is not suitable for higher speeds. There is a risk of accident. You should therefore adapt your driving style accordingly and drive carefully. Do not exceed the specified maximum speed with a tire that has been repaired using tire sealant.
! After use, excess tire sealant may run out of the filler hose. This could cause stains. Therefore, place the filler hose in the plastic bag that contained the TIREFIT kit. H Environmental note Have the used tire sealant bottle disposed of professionally, e.g. at a qualified specialist workshop.
If a tire pressure of 200 kPa (2.0 bar/29 psi) has been achieved after ten minutes: X Switch off the tire inflation compressor. X Unscrew the filler hose from the valve of
the faulty tire.
X Stow the tire sealant bottle and the tire
inflation compressor.
X Pull away immediately. The maximum speed for a tire sealed with tire sealant is 50 mph (80 km/h). The upper part of the TIREFIT sticker must be affixed to the instrument cluster in the driver's field of vision.
X Stop after driving for approximately ten minutes and check the tire pressure with the tire inflation compressor. The tire pressure must now be at least 130 kPa (1.3 bar/19 psi). G WARNING If the required tire pressure is not reached after driving for a short period, the tire is too badly damaged. The tire sealant cannot repair the tire in this instance. Damaged tires and a tire pressure that is too low can significantly impair the vehicle's braking and driving characteristics. There is a risk of accident. Do not continue driving. Contact a qualified specialist workshop.
X Correct the tire pressure if it is still at least
130 kPa (1.3 bar/19 psi) (for the values, see the Tire and Loading Information placard on the driver's side B-pillar or tire pressure table on the fuel filler flap).
X To increase the tire pressure: switch on
the tire inflation compressor.
X To reduce the tire pressure: depress
pressure release button : next to pressure gauge ;.
Battery (vehicle)
285
X To remove the tire sealant bottle from the tire inflation compressor, press together the locking tabs on the yellow cap.
X Pull the tire sealant bottle out of the tire
inflation compressor. The filler hose remains attached to the tire sealant bottle.
X Stow the tire sealant bottle and the tire
inflation compressor.
X Drive to the nearest qualified specialist
workshop and have the tire changed there.
X Have the tire sealant bottle and the filler
hose replaced as soon as possible at a qualified specialist workshop.
X Have the tire sealant bottle replaced every
four years at a qualified specialist workshop.
Battery (vehicle) Important safety notes Special tools and expert knowledge are required when working on the battery, e.g. removal and installing. You should therefore have all work involving the battery carried out at a qualified specialist workshop. G WARNING Work carried out incorrectly on the battery can, for example, lead to a short circuit and damage your vehicle's electronic system. This can disrupt driving safety systems such as ABS (anti-lock braking system) or ESP® (Electronic Stability Program).
286 Battery (vehicle)
RIf ABS malfunctions, the wheels can lock during braking. This limits the steerability of the vehicle when braking and the braking distance may increase. There is a risk of accident.
RIf ESP® malfunctions, the vehicle will not be stabilized if it starts to skid or a wheel starts to spin. There is a risk of accident.
You should therefore have all work involving the battery carried out at a qualified specialist workshop. G WARNING Electrostatic build-up can lead to the creation of sparks, which could ignite the highly explosive gases of a battery. There is a risk of an explosion. Before handling the battery, touch the vehicle body to remove any existing electrostatic build-up.
The highly flammable gas mixture forms when charging the battery as well as when jump- starting. Always make sure that neither you nor the battery is electrostatically charged. There is a build-up of electrostatic charge, e.g.: Rby wearing clothing made from synthetic
fibers
Rdue to friction between clothing and seats Rif you push or pull the battery across the
carpet or other synthetic materials Rif you wipe the battery with a cloth. G WARNING During the charging process, a battery produces hydrogen gas. If a short circuit occurs or sparks are created, the hydrogen gas can ignite. There is a risk of an explosion. RMake sure that the positive terminal of a
connected battery does not come into contact with vehicle parts.
RNever place metal objects or tools on a
battery.
RIt is important that you observe the
described order of the battery terminals when connecting and disconnecting a battery.
RWhen jump-starting, make sure that the battery poles with identical polarity are connected.
RIt is particularly important to observe the
described order when connecting and disconnecting the jumper cables.
RNever connect or disconnect the battery
terminals while the engine is running. G WARNING Battery acid is caustic. There is a risk of injury. Avoid contact with the skin, eyes or clothing. Do not inhale any battery gases. Do not lean over the battery. Keep children away from batteries. Wash battery acid immediately with water and seek medical attention. H Environmental note
Batteries contain dangerous substances. It is against the law to dispose of them with the household rubbish. They must be collected separately and recycled to protect the environment. Dispose of batteries in an environmentally friendly manner. Take discharged batteries to a qualified specialist workshop or a special collection point for used batteries.
! Have the battery checked regularly at a
qualified specialist workshop. Observe the service intervals in the Maintenance Booklet or contact a qualified specialist workshop for more information.
! You should have all work involving the
battery carried out at a qualified specialist workshop. In the exceptional case that it is
necessary for you to disconnect the battery yourself, make sure that: Ryou switch off the engine and remove the
SmartKey. Check that all the indicator lamps in the instrument cluster are off. Otherwise, electronic components, such as the alternator, may be damaged.
Ryou first remove the negative terminal clamp and then the positive terminal clamp. Never swap the terminal clamps. Otherwise, the vehicle's electronic system may be damaged.
Ron vehicles with automatic transmission, the transmission is locked in position P after disconnecting the battery. The vehicle is secured against rolling away. You can then no longer move the vehicle.
The battery and the cover of the positive terminal clamp must be installed securely during operation.
Comply with safety precautions and take protective measures when handling batteries.
WARNING
Fire, open flames and smoking are prohibited when handling the battery. Avoid creating sparks. Battery acid is caustic. Avoid contact with the skin, eyes or clothing. Wear suitable protective clothing, in particular gloves, an apron and a face mask. Immediately rinse acid splashes off with clean water. Consult a doctor if necessary. Wear eye protection.
Battery (vehicle)
287
Keep children away.
Observe this Operator's Manual.
For safety reasons, Mercedes-Benz recommends that you only use batteries which have been tested and approved for your vehicle by Mercedes-Benz. These batteries provide increased impact protection to prevent vehicle occupants from suffering acid burns should the battery be damaged in the event of an accident. In order for the battery to achieve the maximum possible service life, it must always be sufficiently charged. Like other batteries, the vehicle battery may discharge over time if you do not use the vehicle. In this case, have the battery disconnected at a qualified specialist workshop. You can also charge the battery with a charger recommended by Mercedes- Benz. Contact a qualified specialist workshop for further information. Have the battery charge level checked more frequently if you use the vehicle mainly for short trips or if you leave it standing idle for a lengthy period. Consult a qualified specialist workshop if you wish to leave your vehicle parked for a long period of time. Only replace a battery with a battery that has been recommended by Mercedes-Benz. i Remove the SmartKey if you park the vehicle and do not require any electrical consumers. The vehicle will then use very little energy, thus conserving battery power.
X Open the hood (Y page 266). X Connect the battery charger to the positive
terminal and ground point in the same order as when connecting the donor battery in the jump-starting procedure (Y page 289).
If, at low temperatures, the indicator lamps/ warning lamps in the instrument cluster do not light up, it is highly likely that the discharged battery has frozen. In this case you may neither jump-start the vehicle nor charge the battery. The service life of a thawed-out battery may be shorter. The starting characteristics can be impaired, particularly at low temperatures. Have the thawed-out battery checked at a qualified specialist workshop. Only charge the installed battery with a battery charger which has been tested and approved by Mercedes-Benz. An accessory battery charge unit specially adapted for Mercedes-Benz vehicles and tested and approved by Mercedes-Benz is available. It permits the charging of the battery in its installed position. Contact an authorized Mercedes-Benz Center for further information and availability. Read the battery charger's operating instructions before charging the battery.
288 Battery (vehicle)
i If the power supply has been interrupted, e.g. if you reconnect the battery, you will have to: Rset the clock (audio system/COMAND, see the separate operating instructions). Rreset the function for folding the exterior mirrors in/out automatically, by folding the mirrors out once (Y page 93).
Charging the battery G WARNING During charging and jump-starting, explosive gases can escape from the battery. There is a risk of an explosion. Particularly avoid fire, open flames, creating sparks and smoking. Ensure there is sufficient ventilation while charging and jump-starting. Do not lean over a battery. G WARNING Battery acid is caustic. There is a risk of injury. Avoid contact with the skin, eyes or clothing. Do not inhale any battery gases. Do not lean over the battery. Keep children away from batteries. Wash battery acid immediately with water and seek medical attention. G WARNING A discharged battery can freeze at temperatures below freezing point. When jump-starting the vehicle or charging the battery, gases can escape from the battery. There is a risk of an explosion. Allow the frozen battery to thaw out before charging it or jump-starting.
! Only use battery chargers with a
maximum charging voltage of 14.8 V.
! Only charge the battery using the jump-
starting connection point.
The jump-starting connection point is in the engine compartment (Y page 289).
Jump-starting 289
Jump-starting
For the jump-starting procedure, use only the jump-starting connection point, consisting of a positive terminal and an earth point, in the engine compartment. G WARNING Battery acid is caustic. There is a risk of injury. Avoid contact with the skin, eyes or clothing. Do not inhale any battery gases. Do not lean over the battery. Keep children away from batteries. Wash battery acid immediately with water and seek medical attention. G WARNING During charging and jump-starting, explosive gases can escape from the battery. There is a risk of an explosion. Particularly avoid fire, open flames, creating sparks and smoking. Ensure there is sufficient ventilation while charging and jump-starting. Do not lean over a battery. G WARNING During the charging process, a battery produces hydrogen gas. If a short circuit occurs or sparks are created, the hydrogen gas can ignite. There is a risk of an explosion. RMake sure that the positive terminal of a connected battery does not come into contact with
vehicle parts.
RNever place metal objects or tools on a battery. RIt is important that you observe the described order of the battery terminals when connecting
and disconnecting a battery.
RWhen jump-starting, make sure that the battery poles with identical polarity are connected. RIt is particularly important to observe the described order when connecting and disconnecting
the jumper cables.
RNever connect or disconnect the battery terminals while the engine is running. G WARNING A discharged battery can freeze at temperatures below freezing point. When jump-starting the vehicle or charging the battery, gases can escape from the battery. There is a risk of an explosion. Allow the frozen battery to thaw out before charging it or jump-starting. G WARNING Non-combusted fuel can collect in the exhaust system and ignite. There is a risk of fire. Avoid repeated and lengthy starting attempts.
! Avoid repeated and lengthy starting attempts. Otherwise, the catalytic converter could be
damaged by the non-combusted fuel.
If, at low temperatures, the indicator lamps/warning lamps in the instrument cluster do not light up, it is highly likely that the discharged battery has frozen. In this case you may neither jump-start the vehicle nor charge the battery. The service life of a thawed-out battery may be
290
Jump-starting
shorter. The starting characteristics can be impaired, particularly at low temperatures. Have the thawed-out battery checked at a qualified specialist workshop. Do not start the vehicle using a rapid charging device. If your vehicle's battery is discharged, the engine can be jump-started from another vehicle or from a second battery using jumper cables. Observe the following points: RThe battery is not accessible in all vehicles. If the other vehicle's battery is not accessible,
jump-start the vehicle using a second battery or a jump-starting device.
RYou may only jump-start the vehicle when the engine and exhaust system are cold. RDo not start the engine if the battery is frozen. Let the battery thaw first. RJump-starting may only be performed from batteries with a nominal voltage of 12 V. ROnly use jumper cables which have a sufficient cross-section and insulated terminal clamps. RIf the battery is fully discharged, leave the battery that is being used to jump-start connected
for a few minutes before attempting to start. This charges the battery slightly.
RMake sure that the two vehicles do not touch. Make sure that: Rthe jumper cables are not damaged. Rbare parts of the terminal clamp do not come into contact with other metal parts while the
jumper cables are connected to the battery.
Rthe jumper cables cannot come into contact with parts which can move when the engine
is running, such as the V-belt pulley or the fan.
X Secure the vehicle by applying the electric parking brake. X Shift the transmission to position P. X Turn the SmartKey to position 0 in the ignition lock and remove it. X Switch off all electrical consumers (e.g. radio, blower, etc.). X Open the hood (Y page 266).
Towing and tow-starting 291
Position number B identifies the charged battery of the other vehicle or an equivalent jump- starting device. X Press together cover : of positive clamp ; and slide it back. X Connect positive terminal ; on your vehicle to positive terminal = of donor battery B
using the jumper cable, beginning with your own battery.
X Start the engine of the donor vehicle and run it at idling speed. X Connect negative terminal ? of donor battery B to ground point A of your vehicle using
the jumper cable, connecting the jumper cable to donor battery B first.
X Start the engine. X Before disconnecting the jumper cables, let the engine run for several minutes. X First, remove the jumper cables from earth point A and negative terminal ?, then from positive clamp ; and positive terminal =. Begin each time at the contacts on your own vehicle first.
X Close cover : of positive terminal ; after removing the jumper cables. X Have the battery checked at a qualified specialist workshop. i Jump-starting is not considered to be a normal operating condition. i Jumper cables and further information regarding jump-starting can be obtained at any
qualified specialist workshop.
Towing and tow-starting Important safety notes G WARNING Functions relevant to safety are restricted or no longer available if: Rthe engine is not running. Rthe brake system or the power steering is
malfunctioning.
Rthere is a malfunction in the voltage supply
or the vehicle's electrical system.
If your vehicle is being towed, much more force may be necessary to steer or brake. There is a risk of an accident. In such cases, use a tow bar. Before towing, make sure that the steering moves freely.
G WARNING If the weight of the vehicle to be towed or tow- started is greater than the permissible gross weight of your vehicle: Rthe towing eye could detach itself Rthe vehicle/trailer combination could
rollover.
There is a risk of an accident. When towing or tow-starting another vehicle, its weight should not be greater than the permissible gross weight of your vehicle.
Information on your vehicle's gross vehicle weight rating can be found on the vehicle identification plate (Y page 328). G WARNING The vehicle is braked if the HOLD function is activated. Therefore, deactivate HOLD if the vehicle is to be towed.
292 Towing and tow-starting
! Only secure the tow rope or tow bar at the towing eyes. Otherwise, the vehicle could be damaged.
! Do not use the towing eyes for recovery purposes as this could damage the vehicle. If in doubt, recover the vehicle with a crane.
! When towing, pull away slowly and
smoothly. If the tractive power is too high, the vehicles could be damaged.
! The vehicle can be towed a maximum of
30 miles (50km). The towing speed of 30 mph (50km/h) must not be exceeded. If the vehicle has to be towed more than 30 miles (50km), the front axle must be raised or the entire vehicle raised and transported.
! Do not tow with sling-type equipment.
This could damage the vehicle.
! Vehicles with automatic transmission
must not be started by tow-starting. This could otherwise damage the transmission.
It is better to have the vehicle transported than to have it towed. When towing a vehicle, the transmission must be in position N. The battery must be connected and charged. Otherwise, you: Rcannot turn the SmartKey to position 2 in
the ignition lock
Rcannot shift the transmission to position
N.
i Deactivate the automatic locking feature
(Y page 198). You could otherwise be locked out when pushing or towing the vehicle.
Installing/removing the towing eye Installing the towing eye
X Remove the towing eye from the stowage
space. The towing eye is beneath the cargo compartment floor with the vehicle tool kit (Y page 280). Vehicles with the TIREFIT kit: the towing eye is beneath the tire inflation compressor.
X Press the mark on cover : inwards in the
direction of the arrow.
X Take cover : off the opening. X Screw in and tighten the towing eye
clockwise to the stop.
Removing the towing eye X Unscrew and remove the towing eye. X Attach cover : to the bumper and press
until it engages.
X Place the towing eye in the stowage well
beneath the cargo compartment floor (Y page 280) in the cargo compartment. X Vehicles with the TIREFIT kit: put back the
tire inflation compressor.
Towing the vehicle with the front axle raised ! The ignition must be switched off if the vehicle is being towed with the front axle raised. Otherwise, ESP® may intervene and damage the brake system.
X Turn the SmartKey to position 2 in the
ignition lock.
X When the vehicle is stationary, depress the
brake pedal and keep it depressed. X Shift the automatic transmission to
position P.
X Release the brake pedal. X Release the electric parking brake. X Deactivate automatic locking
X Switch on the hazard warning lamps
(Y page 198).
(Y page 101).
X Turn the SmartKey to position 0 in the
ignition lock and leave the SmartKey in the ignition lock.
When towing your vehicle with the front axle raised, it is important that you observe the safety instructions (Y page 291).
Towing a vehicle with both axles on the ground G WARNING The power assistance for the steering and the brake force booster do not work when the engine is not running. You will then need much more effort to brake and steer the vehicle. Adapt your style of driving accordingly.
i In order to signal a change of direction
when towing with the hazard warning lamps switched on, use the combination switch as usual. In this case, only the turn signals for the desired direction flash. When you reset the combination switch, the hazard warning lamps start flashing again.
Towing and tow-starting 293
The automatic transmission automatically shifts to position P when you open the driver's or front-passenger door or when you remove the SmartKey from the ignition lock. In order to ensure that the automatic transmission stays in position N when towing the vehicle, you must observe the following points: X Make sure that the vehicle is stationary. X Turn the SmartKey to position 2 in the
ignition lock.
X Depress and hold the brake pedal. X Shift the automatic transmission to
position N.
X Leave the SmartKey in position 2 in the
ignition lock.
X Release the brake pedal. X Release the electric parking brake. X Switch on the hazard warning lamps
(Y page 101).
It is important that you observe the safety instructions when towing away your vehicle (Y page 291).
Transporting the vehicle ! Only lash the vehicle down by the wheels or wheel rims, not by parts of the vehicle such as axle or steering components. Otherwise, the vehicle could be damaged.
X Turn the SmartKey to position 2 in the
ignition lock.
X Shift the transmission to position N. As soon as the vehicle is loaded: X Prevent the vehicle from rolling away by
applying the electric parking brake. X Shift the transmission to position P. X Turn the SmartKey to position 0 in the
ignition lock and remove it.
X Secure the vehicle. The towing eye can be used to pull the vehicle onto a trailer or transporter for transporting purposes.
294 Fuses
Tow-starting (emergency engine starting) ! Vehicles with automatic transmission
must not be tow-started. You could otherwise damage the automatic transmission.
When tow-starting, it is important that you observe the safety instructions (Y page 291).
Fuses Important safety notes G WARNING If you manipulate or bridge a faulty fuse or if you replace it with a fuse with a higher amperage, the electric cables could be overloaded. This could result in a fire. There is a risk of an accident and injury. Always replace faulty fuses with the specified new fuses having the correct amperage.
! Only use fuses that have been approved
for Mercedes-Benz vehicles and which have the correct fuse rating for the system concerned. Only use fuses marked with an "S". Otherwise, components or systems could be damaged.
The fuses in your vehicle serve to close down faulty circuits. If a fuse blows, all the components on the circuit and their functions stop operating. Blown fuses must be replaced with fuses of the same rating, which you can recognize by the color and value. The fuse ratings are listed in the fuse allocation chart. If a newly inserted fuse also blows, have the cause traced and rectified at a qualified specialist workshop, e.g. an authorized Mercedes-Benz Center.
Before changing a fuse X Secure the vehicle against rolling away
(Y page 149).
X Switch off all electrical consumers. X Turn the SmartKey to position 0 in the
ignition lock and remove it (Y page 135). All indicator lamps in the instrument cluster must be off.
The fuses are located in various fuse boxes: RFuse box in the engine compartment on the left-hand side of the vehicle, when viewed in the direction of travel
RFuse box in the front-passenger footwell The fuse allocation chart is on the fuse box in the front-passenger footwell (Y page 295).
Fuse box in the engine compartment G WARNING When the hood is open and the windshield wipers are set in motion, you can be injured by the wiper linkage. There is a risk of injury. Always switch off the windshield wipers and the ignition before opening the hood.
! Make sure that no moisture can enter the
fuse box when the cover is open.
! When closing the cover, make sure that it is lying correctly on the fuse box. Moisture seeping in or dirt could otherwise impair the operation of the fuses.
X Open the hood. X Use a dry cloth to remove any moisture
from the fuse box.
X To open: open clamps ;. X Fold up cover : in the direction of the
arrow and remove it.
X To close: check whether the seal is seated
correctly in cover :.
X Insert cover : at the back into openings
= on the fuse box. X Fold down cover :. X Hook clamps ; into the fuse box and
close.
Fuses
295
X To release cover =, press retaining
clamp ;.
X Fold out cover = in the direction of the
arrow to the catch.
X Remove cover = forwards. i Fuse allocation chart ? is located on the
lower right-hand side of cover =.
X To close: insert cover = on the left-hand
side of the fuse box into the retainer. Cover = engages in the retainers.
X Fold down cover = until clamps ; lock
audibly.
X Fold back perforated floor covering :.
X Close the hood.
Fuse box in the front-passenger footwell
X To open: remove the floormat from the
front-passenger side.
X Fold out perforated floor covering : in the
direction of the arrow.
296
Useful information ............................ 298
Important safety notes .................... 298
Operation ........................................... 298
Winter operation ............................... 300
Tire pressure ..................................... 301
Loading the vehicle .......................... 306
Maximum load rating ....................... 310
Uniform Tire Quality Grading Standards .......................................... 311
Tire labeling ....................................... 312
Definition of terms for tires and loading ............................................... 316
Changing a wheel ............................. 319
Wheel and tire combinations ........... 323
Emergency spare wheel ................... 325297
298 Operation
Useful information
i This Operator's Manual describes all models and all standard and optional equipment of your vehicle available at the time of publication of the Operator's Manual. Country-specific differences are possible. Please note that your vehicle may not be equipped with all features described. This also applies to safety- related systems and functions.
i Read the information on qualified specialist workshops: (Y page 24).
Important safety notes
G WARNING If wheels and tires of the wrong size are used, the wheel brakes or suspension components may be damaged. There is a risk of an accident. Always replace wheels and tires with those that fulfill the specifications of the original part. When replacing wheels, make sure to use the correct: Rdesignation Rmodel When replacing tires, make sure to use the correct: Rdesignation Rmanufacturer Rmodel G WARNING A flat tire severely impairs the driving, steering and braking characteristics of the vehicle. There is a risk of accident. Tires without run-flat characteristics: Rdo not drive with a flat tire. Rimmediately replace the flat tire with your emergency spare wheel or spare wheel, or consult a qualified specialist workshop.
Tires with run-flat characteristics: Rpay attention to the information and
warning notices on MOExtended tires (tires with run-flat characteristics).
Accessories that are not approved for your vehicle by Mercedes-Benz or are not being used correctly can impair the operating safety. Before purchasing and using non-approved accessories, visit a qualified specialist workshop and inquire about: Rsuitability Rlegal stipulations Rfactory recommendations Information on dimensions and types of wheels and tires for your vehicle can be found (Y page 323). Information on air pressure for the tires on your vehicle can be found: Ron the vehicle's Tire and Loading Information placard on the B-pillar
Ron the tire pressure label on the fuel filler
flap
Runder "Tire pressure" i Further information on wheels and tires can be obtained at any qualified specialist workshop.
Operation Information on driving RIf the vehicle is heavily loaded, check the
tire pressures and correct them if necessary.
RWhile driving, pay attention to vibrations,
noises and unusual handling characteristics, e.g. pulling to one side. This may indicate that the wheels or tires are damaged. If you suspect that a tire is defective, reduce your speed immediately. Stop the vehicle as soon as possible to check the wheels and tires for damage. Hidden tire damage could also be causing
the unusual handling characteristics. If you find no signs of damage, have the wheels and tires checked at a qualified specialist workshop.
RWhen parking your vehicle, make sure that the tires do not get deformed by the curb or other obstacles. If it is necessary to drive over curbs, speed humps or similar elevations, try to do so slowly and at an obtuse angle. Otherwise, the tires, particularly the sidewalls, may be damaged.
Regular checking of wheels and tires G WARNING Damaged tires can cause tire inflation pressure loss. As a result, you could lose control of your vehicle. There is a risk of accident. Check the tires regularly for signs of damage and replace any damaged tires immediately.
Regularly check the wheels and tires of your vehicle for damage at least once a month, as well as after driving off-road or on rough roads. Damaged wheels can cause a loss of tire pressure. Pay particular attention to damage such as: Rcuts in the tires Rpunctures Rtears in the tires Rbulges on tires Rdeformation or severe corrosion on wheels Regularly check the tire tread depth and the condition of the tread across the whole width of the tire (Y page 299). If necessary, turn the front wheels to full lock in order to inspect the inner side of the tire surface. All wheels must have a valve cap to protect the valve against dirt and moisture. Do not mount anything onto the valve other than the standard valve cap or other valve caps approved by Mercedes-Benz for your vehicle.
Operation 299
Do not use any other valve caps or systems, e.g. tire pressure monitoring systems. Regularly check the pressure of all the tires particularly prior to long trips. Adjust the tire pressure as necessary (Y page 301). The service life of tires depends, among other things, on the following factors: RDriving style RTire pressure RDistance covered
Tire tread G WARNING Insufficient tire tread will reduce tire traction. The tire is no longer able to dissipate water. This means that on wet road surfaces, the risk of hydroplaning increases, in particular where speed is not adapted to suit the driving conditions. There is a risk of accident. If the tire pressure is too high or too low, tires may exhibit different levels of wear at different locations on the tire tread. Thus, you should regularly check the tread depth and the condition of the tread across the entire width of all tires. Minimum tire tread depth for: RSummer tires: â in (3 mm) RM+S tires: ã in (4 mm) For safety reasons, replace the tires before the legally prescribed limit for the minimum tire tread depth is reached.
300 Winter operation
Bar indicator : for tread wear is integrated into the tire tread. Treadwear indicators (TWI) are required by law. Six indicators are positioned on the tire tread. They are visible once the tread depth is approximately á in (1.6 mm). If this is the case, the tire is so worn that it must be replaced.
i Vehicles equipped with MOExtended tires are not equipped with a TIREFIT kit at the factory. It is therefore recommended that you additionally equip your vehicle with a TIREFIT kit if you mount tires that do not feature run-flat properties, e.g. winter tires. A TIREFIT kit can be obtained from a qualified specialist workshop.
Selecting, mounting and replacing tires ROnly mount tires and wheels of the same
type and make. Exception: it is permissible to mount a different type or make in the event of a flat tire. Observe the "MOExtended tires (tires with run-flat characteristics" section (Y page 281).
ROnly mount tires of the correct size onto
the wheels.
RAfter mounting new tires, break in them in at moderate speeds for the first 60 miles (100 km), as they only reach their full performance after this distance.
RDo not drive with tires which have too little
tread depth, as this significantly reduces the traction on wet roads (hydroplaning).
RReplace the tires after six years at the
latest, regardless of wear.
MOExtended tires (tires with run-flat properties) With MOExtended tires (tires with run flat characteristics), you can continue to drive your vehicle even if there is a total loss of pressure in one or more tires. MOExtended tires may only be used in conjunction with an active tire pressure loss warning system and only on wheels specifically tested by Mercedes-Benz. Notes on driving with MOExtended tires with a flat tire (Y page 281).
Winter operation General notes Have your vehicle winterproofed at a qualified specialist workshop at the onset of winter. Observe the notes in the "Changing a wheel" section (Y page 319).
Driving with summer tires At temperatures below 45 ‡ (+7 †), summer tires lose elasticity and therefore traction and braking power. Change the tires on your vehicle to M+S tires. Using summer tires at very cold temperatures could cause cracks to form, thereby damaging the tires permanently. Mercedes-Benz cannot accept responsibility for this type of damage.
M+S tires G WARNING M+S tires with a tire tread depth of less than ã in (4 mm) are not suitable for use in winter and do not provide sufficient traction. There is a risk of an accident. M+S tires with a tread depth of less than ã in (4 mm) must be replaced immediately.
At temperatures below 45 ‡ (+7 †), use winter tires or all-season tires. Both types of tire are identified by the M+S marking. Only winter tires bearing the i snowflake symbol in addition to the M+S marking provide the best possible grip in wintry road conditions. Only these tires will allow driving
safety systems such as ABS and ESP® to function optimally in winter. These tires have been developed specifically for driving in snow. Use M+S tires of the same make and tread on all wheels to maintain safe handling characteristics. Always observe the maximum permissible speed specified for the M+S tires you have mounted. Once the winter tires are mounted: X Check the tire pressures (Y page 305). X Restart the tire pressure loss warning
system (Y page 305).
For more information on driving with the emergency spare wheel, see (Y page 325).
Snow chains G WARNING If snow chains are mounted on the rear wheels, the snow chains could cause abrasion to the vehicle body or to chassis components. This could cause damage to the vehicle or the tires. There is a risk of an accident. To avoid hazardous situations: Rnever mount snow chains on the rear
wheels
Ronly mount snow chains in pairs on the
front wheels.
! On some tire sizes there is not enough
space for snow chains. To avoid damage to the vehicle or tires, observe the "Wheel and tire combinations" section under "Tires and wheels".
For safety reasons, Mercedes-Benz recommends that you only use snow chains that have been specially approved for your vehicle by Mercedes-Benz, or are of a corresponding standard of quality.
Tire pressure 301
If you intend to mount snow chains, please bear the following points in mind: RSnow chains may not be mounted on all
wheel/tire combinations. Permissible wheel-tire combinations (Y page 323). ROnly use snow chains when driving on
roads completely covered by snow. Remove the snow chains as soon as possible when you come to a road that is not snow-covered.
RLocal regulations may restrict the use of
snow chains. Observe the appropriate regulations if you wish to mount snow chains.
RDo not exceed the maximum permissible
speed of 30 mph (50 km/h).
RWhen snow chains are installed, never use
Active Parking Assist (Y page 172).
i You may wish to deactivate
ESP®(Y page 62) when pulling away with snow chains installed. You can thereby allow the wheels to spin in a controlled manner, achieving an increased driving force (cutting action).
For more information on driving with the emergency spare wheel, see (Y page 325).
Tire pressure Tire pressure specifications G WARNING Tires with tire pressures that are too low or too high are associated with the following hazards: Rthey can burst, in particular if the vehicle is
heavily laden or when driven at high speeds.
Rthe tires can wear excessively and/or
unevenly, which can severely impair tire traction.
Rthe driving, steering and braking
characteristics may be severely impaired.
There is a risk of accident.
302 Tire pressure
Follow recommended tire inflation pressures and check the pressure of all the tires including the spare wheel: Rmonthly, at least Rif the load changes Rbefore beginning a long journey Runder different operating conditions, e.g.
off-road driving
If necessary, correct the tire pressure.
Use a suitable pressure gauge to check the tire pressure. The outer appearance of a tire does not permit any reliable conclusion about the tire pressure. On vehicles equipped with the electronic tire pressure monitor, the tire pressure can be checked in the on-board computer. The recommended tire pressures for the tires mounted at the factory can be found on the labels described here. 1.) Tire and Loading Information placard on the B-pillar on the driver's side of the vehicle (Y page 306). The Tire and Loading Information placard contains the recommended tire pressures for cold tires. The recommended tire pressures are valid for the maximum permissible load and up to the maximum permissible vehicle speed.
various operating conditions, i.e. differing load and speed conditions. i Specifications shown in the examples of
tire pressure tables are for illustration purposes only. Tire pressure specifications are vehicle-specific and may deviate from the data shown here. Tire pressure specifications applicable to your vehicle are located in your vehicle's tire pressure table.
Example: tire pressure table for all tires permitted for this vehicle by the factory If a tire size precedes a tire pressure, the tire pressure information following is only valid for that tire size. The load conditions "partially laden" and "fully laden" are defined in the table for different numbers of occupants and amounts of luggage. The actual number of seats may differ.
: Recommended tire pressures Option 2) Tire pressure table on the inside of the fuel filler flap. The tire pressure table contains the recommended pressures for cold tires for
Example: tire pressure table with tire dimensions Some tire pressure tables show only the rim diameters instead of the full tire size, e.g. R18. Rim diameter is part of the tire size and
can be found on the tire sidewall (Y page 313).
If the tire pressures have been set to the lower values for lighter loads and/or lower road speeds, the pressures should be reset to the higher values: Rif you want to drive with an increased load
and/or
Rif you want to drive at higher road speeds. i The tire pressures for increased loads
and/or higher road speeds, shown in the tire pressure table, may have a negative effect on driving comfort.
If the tire pressure is not set correctly, this can lead to an excessive build up of heat and a sudden loss of pressure. For more information, contact a qualified specialist workshop.
Important notes on tire pressure G WARNING If the tire pressure drops repeatedly, the wheel, valve or tire may be damaged. Tire pressure that is too low may result in a tire blow-out. There is a risk of an accident. RCheck the tire for foreign objects. RCheck whether the wheel is losing air or the
valve is leaking.
If you are unable to rectify the damage, contact a qualified specialist workshop.
Tire pressure 303
G WARNING If you fit unsuitable accessories onto tire valves, the tire valves may be overloaded and malfunction, which can cause tire pressure loss. Due to their design, retrofitted tire pressure monitors keep the tire valve open. This can also result in tire pressure loss. There is a risk of an accident. Only screw the standard valve cap or other valve caps approved by Mercedes-Benz for your vehicle onto the tire valve.
Use a suitable pressure gauge to check the tire pressure. The outer appearance of a tire does not permit any reliable conclusion about the tire pressure. The tire temperature and pressure increase when the vehicle is in motion. This is dependent on the driving speed and the load. Therefore, you should only correct tire pressures when the tires are cold. The tires are cold: Rif the vehicle has been parked without
direct sunlight on the tires for at least three hours and
Rif the vehicle has not been driven further
than 1 mile (1.6 km)
The tire temperature changes depending on the outside temperature, the vehicle speed and the tire load. If the tire temperature changes by 18 ‡ (10 †), the tire pressure changes by approximately 10 kPa (0.1 bar/ 1.5 psi). Take this into account when checking the pressure of warm tires. Only correct the tire pressure if it is too low for the current operating conditions. If you check the tire pressure when the tires are warm, the resulting value will be higher than if the tires were cold. This is normal. Do not reduce the tire pressure to the value specified for cold tires. The tire pressure would otherwise be too low.
304 Tire pressure
Observe the recommended tire pressures for cold tires: Ron the Tire and Loading Information placard
on the B-pillar on the driver's side
Rin the tire pressure table on the inside of
the fuel filler flap
Underinflated or overinflated tires Underinflation G WARNING Tires with pressure that is too low can overheat and burst as a consequence. In addition, they also suffer from excessive and/ or irregular wear, which can severely impair the braking properties and the driving characteristics. There is a risk of an accident. Avoid tire pressures that are too low in all the tires, including the spare wheel.
Underinflated tires may: Rwear quickly and unevenly Rhave an adverse effect on fuel consumption Roverheat, leading to tire defects Rhave an adverse effect on handling
characteristics
Overinflation G WARNING Tires with excessively high pressure can burst because they are damaged more easily by road debris, potholes etc. In addition, they also suffer from irregular wear, which can severely impair the braking properties and the driving characteristics. There is a risk of an accident. Avoid tire pressures that are too high in all the tires, including the spare wheel.
Overinflated tires may: Rhave an adverse effect on handling
characteristics
Rwear quickly and unevenly
Rbe more susceptible to damage Rhave an adverse effect on ride comfort Rincrease the braking distance
Maximum tire pressures Never exceed the maximum permissible tire inflation pressure. Always observe the recommended tire pressure for your vehicle when adjusting the tire pressure (Y page 301).
: Example: maximum permissible tire
pressure
i The actual values for tires are vehicle-
specific and may deviate from the values in the illustration.
Checking the tire pressures Important safety notes Observe the "Tire pressure information" section (Y page 301). Information on air pressure for the tires on your vehicle can be found: Ron the vehicle's Tire and Loading Information placard on the B-pillar
Ron the tire pressure label on the fuel filler
flap
Rin the "Tire pressure information" section
Checking tire pressures manually To determine and set the correct tire pressure, proceed as follows: X Remove the valve cap of the tire that is to
be checked.
X Press the tire pressure gauge securely onto
the valve.
X Read the tire pressure and compare it with
the recommended value on the Tire and Loading Information placard on the B-pillar on the driver's side of your vehicle. X If necessary, increase the tire pressure to
the recommended value (Y page 301).
X If the tire pressure is too high, release air by pressing down the metal pin in the valve using the tip of a pen, for example. Then, check the tire pressure again using the tire pressure gauge.
X Screw the valve cap onto the valve. X Repeat these steps for the other tires.
Tire pressure loss warning system Important safety notes While the vehicle is in motion, the tire pressure loss warning system monitors the set tire pressure using the rotational speed of the wheels. This enables the system to detect significant pressure loss in a tire. If the speed of rotation of a wheel changes as a result of a loss of pressure, a corresponding warning message will appear in the multifunction display. The tire pressure warning system does not warn you of an incorrectly set tire pressure. Observe the notes on the recommended tire pressure (Y page 301). The tire pressure loss warning system does not replace the need to regularly check your vehicle's tire pressures, since an even loss of pressure on several tires at the same time cannot be detected by the tire pressure loss warning system.
Tire pressure 305
The tire pressure loss warning system is not able to warn you of a sudden loss of pressure, e.g. if the tire is penetrated by a foreign object. In the event of a sudden loss of pressure, bring the vehicle to a halt by braking carefully. Avoid abrupt steering maneuvers. The function of the tire pressure loss warning system is limited or delayed if: Rsnow chains are mounted to your vehicle's
tires.
Rroad conditions are wintry. Ryou are driving on sand or gravel. Ryou adopt a very sporty driving style
(cornering at high speeds or driving with high rates of acceleration).
Ryou are driving with a heavy load (in the
vehicle or on the roof).
Restarting the tire pressure loss warning system Restart the tire pressure loss warning system if you have: Rchanged the tire pressure Rchanged the wheels or tires Rmounted new wheels or tires X Before restarting, make sure that the tire pressures are set properly on all four tires for the respective operating conditions. The recommended tire pressures can be found in the table on the fuel filler flap. The tire pressure loss warning system can only give reliable warnings if you have set the correct tire pressure. If an incorrect tire pressure is set, these incorrect values will be monitored.
X Observe the notes on tire pressure
(Y page 301).
X Make sure that the SmartKey is in
position 2 (Y page 135) in the ignition lock.
306 Loading the vehicle
X Press = or ; on the steering wheel to select the Service menu. X Press the 9 or : button to select Tire Pressure. X Press the a button. The Run Flat Indicator Active Press 'OK' to Restart message appears in the multifunction display.
If you wish to confirm the restart: X Press the a button. The Tire Pressure Now OK? message appears in the multifunction display. X Press the 9 or : button to select Yes. X Press the a button. The Run Flat Indicator Restarted message appears in the multifunction display. After a teach-in period, the tire pressure loss warning system will monitor the set tire pressures of all four tires.
or If you wish to cancel the restart: X Press the % button. or X If the Tire Pressure Now OK? message appears, use the 9 or : button to select Cancel. X Press the a button.
The tire pressure values stored at the last restart will continue to be monitored.
Loading the vehicle Instruction labels for tires and loads G WARNING Overloaded tires can overheat, causing a blowout. Overloaded tires can also impair the steering and driving characteristics and lead to brake failure. There is a risk of accident. Observe the load rating of the tires. The load rating must be at least half of the GAWR of
your vehicle. Never overload the tires by exceeding the maximum load.
: B-pillar, driver's side Two instruction labels on your vehicle show the maximum possible load. (1) The Tire and Loading Information placard is on the B-pillar on the driver's side. The Tire and Loading Information placard shows the maximum permissible number of occupants and the maximum permissible vehicle load. It also contains details of the tire sizes and corresponding pressures for tires mounted at the factory.
(2) The vehicle identification plate is on the B-pillar on the driver's side. The vehicle identification plate informs you of the gross vehicle weight rating. It is made up of the vehicle weight, all vehicle occupants, the fuel and the cargo. You can also find information about the maximum gross axle weight rating on the front and rear axle. The maximum gross axle weight rating is the maximum weight that can be carried by one axle (front or rear axle). Never exceed the maximum load or the maximum gross axle weight rating for the front or rear axle.
Maximum permissible gross vehicle weight rating
X Specification for maximum gross vehicle weight : is listed in the Tire and Loading Information placard: "The combined weight of occupants and cargo should never exceed XXX kilograms or XXX lbs."
The gross weight of all vehicle occupants, load, luggage and trailer load/noseweight (if applicable) must not exceed the specified value. i The specifications shown on the Tire and
Loading Information placard in the illustration are examples. The maximum permissible load is vehicle-specific and may deviate from the data shown here. The maximum permissible load that applies for your vehicle can be found on your vehicle's Tire and Loading Information placard.
Number of seats
Maximum number of seats : indicates the maximum number of occupants allowed to
Loading the vehicle 307
travel in the vehicle. This information can be found on the Tire and Loading Information placard. i The specifications shown on the Tire and
Loading Information placard in the illustration are examples. The number of seats is vehicle-specific and can differ from the details shown. The number of seats in your vehicle can be found on the Tire and Loading Information placard.
Determining the correct load limit Step-by-step instructions The following steps have been developed as required of all manufacturers under Title 49, Code of U.S. Federal Regulations, Part 575
pursuant to the "National Traffic and Motor Vehicle Safety Act of 1966". X Step 1: Locate the statement "Thecombined weight of occupants and cargo should never exceed XXX kg or XXX lbs." on your vehicle’s Tire and Loading Information placard.
X Step 2: Determine the combined weight of the driver and passengers that will be riding in your vehicle.
X Step 3: Subtract the combined weight of
the driver and passengers from XXX kilograms or XXX lbs.
X Step 4: The resulting figure equals the
available amount of cargo and luggage load capacity. For example, if the "XXX" amount equals 1400 lbs and there are five occupants in the vehicle each with a weight of 150 lbs, the amount of available cargo and luggage load capacity is 650 lbs (1400
Ò 750 (5 x 150) = 650 lbs).X Step 5: Determine the combined weight of
luggage and cargo being loaded on the vehicle. That weight may not safely exceed the available cargo and luggage load capacity calculated in step 4.
X Step 6 (if applicable): If your vehicle will be towing a trailer, load from your trailer
308 Loading the vehicle
will be transferred to your vehicle. Refer to this Operator's Manual to determine how this reduces the available cargo and luggage load capacity of your vehicle (Y page 310).
Loading the vehicle 309
Example: steps 1 to 3
The following table shows examples on how to calculate total and cargo load capacities with varying seating configurations and number and size of occupants. The following examples use a maximum load of 1500 lbs (680 kg). This is for illustration purposes only. Make sure you are using the actual load limit for your vehicle stated on your vehicle's Tire and Loading Information placard (Y page 307). The greater the combined weight of the occupants, the lower the maximum luggage load.Step 1
Step 2
Combined maximum weight of occupants and cargo (data from the Tire and Loading Information placard)
Number of people in the vehicle (driver and occupants) Distribution of the occupants Weight of the occupants
Gross weight of all occupants
Example 1
1500 lbs (680 kg)Example 2
1500 lbs (680 kg)Example 3
1500 lbs (680 kg)Example 1
Example 2
Example 3
Front: 1
Occupant 1: 150 lbs (68 kg)
Front: 1
Rear: 2
Occupant 1: 200 lbs (91 kg) Occupant 2: 190 lbs (86 kg) Occupant 3: 150 lbs (68 kg)Front: 2
Rear: 3
Occupant 1: 150 lbs (68 kg) Occupant 2: 180 lbs (82 kg) Occupant 3: 160 lbs (73 kg) Occupant 4: 140 lbs (63 kg) Occupant 5: 120 lbs (54 kg) 750 lbs (340 kg) 540 lbs (245 kg) 150 lbs (68 kg)310 Maximum load rating
Step 3
Permissible load and trailer load/ noseweight (maximum permissible load rating from the Tire and Loading Information placard minus the gross weight of all occupants)
Example 1
1500 lbs (680 kg) Ò750 lbs (340 kg) = 750 lbs (340 kg)Example 2
1500 lbs (680 kg) Ò540 lbs (245 kg) = 960 lbs (435 kg)Example 3
1500 lbs (680 kg) Ò150 lbs (68 kg) = 1350 lbs (612 kg)Vehicle identification plate Even if you have calculated the total cargo carefully, you should still make sure that the gross vehicle weight rating and the gross axle weight rating are not exceeded. Details can be found on the vehicle identification plate on the B-pillar on the driver's side of the vehicle (Y page 306). Permissible gross vehicle weight: the gross weight of the vehicle, all passengers, load and trailer load/noseweight (if applicable) must not exceed the permissible gross vehicle weight. Gross axle weight rating: the maximum permissible weight that can be carried by one axle (front or rear axle). To ensure that your vehicle does not exceed the maximum permissible values (gross vehicle weight and maximum gross axle weight rating), have your loaded vehicle (including driver, occupants, cargo, and full trailer load if applicable) weighed on a
