2012 Mercedes-benz GL Class Owners Manual

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

Uniform Tire Quality Grading Standards A uniform standard to grade the quality of tires with regards to tread quality, tire traction and temperature characteristics. Ratings are determined by tire manufacturers using U.S. government testing procedures. The ratings are molded into the sidewall of the tire.

Recommended tire pressure The recommended tire pressure for your vehicle under normal driving conditions. You will find the recommendation on the Tire and Loading Information placard on the B-pillar on the driver's side of your vehicle. The recommended tire pressure provides the best balance between handling characteristics, ride comfort and wear. Supplemental information pertaining to special driving situations can be found on the tire inflation pressure label on the inside of the fuel filler flap.

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

Increased vehicle weight due to optional equipment This is the combined weight of all standard and optional equipment available for the vehicle, regardless of whether it is actually installed on the vehicle or not.

360 Definition of terms for tires and loading

Rim This is the part of the wheel on which the tire is mounted.

GAWR (Gross Axle Weight Rating) The GAWR is the maximum permissible axle weight. The actual load on an axle must never exceed the gross axle weight rating. The gross axle weight rating can be found on the vehicle identification plate on the B-pillar on the driver's side.

Tire speed rating The tire speed rating is part of the tire identification. It specifies the speed range for which the tire is approved.

GTW (Gross Trailer Weight) The GTW is the weight of a trailer including the weight of the load, luggage, accessories etc. on the trailer.

GVW (Gross Vehicle Weight) The gross vehicle weight comprises the weight of the vehicle including fuel, tools, the spare wheel, accessories installed, occupants, luggage and the drawbar noseweight if applicable. The gross vehicle weight must not exceed the gross vehicle weight rating GVWR as specified on the vehicle identification plate on the B pillar on the driver's side.

GVWR (Gross Vehicle Weight Rating) The GVWR is the maximum permissible gross weight of a fully loaded vehicle (the weight of the vehicle including all accessories, occupants, fuel, luggage and the drawbar noseweight if applicable). The gross vehicle weight rating is specified on the vehicle

identification plate on the B-pillar on the driver's side.

Maximum loaded vehicle weight The maximum weight is the sum of the curb weight of the vehicle, the weight of the accessories, the total load limit and the weight of the optional equipment installed at the factory.

Kilopascal (kPa) Metric unit for tire pressure. 6.9 kPa is the equivalent of 1 psi. Another unit for tire pressure is bar. There are 100 kilopascals (kPa) to 1 bar.

Load index In addition to the load bearing index, the load index may also be imprinted on the sidewall of the tire. This specifies the load bearing capacity more precisely.

Curb weight The weight of a vehicle with standard equipment including the maximum capacity of fuel, oil and coolant. It also includes the air- conditioning system and optional equipment if these are installed in the vehicle, but does not include passengers or luggage.

Maximum load rating The maximum load rating in kilograms or pounds is the maximum weight for which a tire is approved.

Maximum permissible tire pressure Maximum permissible tire pressure for one tire.

Definition of terms for tires and loading 361

Maximum load on one tire Maximum load on one tire. This is calculated by dividing the maximum axle load of one axle by two.

Sidewall The part of the tire between the tread and the bead.

PSI (pounds per square inch) A standard unit of measure for tire pressure.

Aspect ratio Relationship between tire height and tire width in percent.

Tire pressure This is pressure inside the tire applying an outward force to each square inch of the tire's surface. The tire pressure is specified in pounds per square inch (psi), in kilopascal (kPa) or in bar. The tire pressure should only be corrected when the tires are cold. For this, the vehicle must have been stationary for at least three hours or not have traveled more than 1.6 km (1 mile) in this time.

Tire pressure of cold tires Tire pressure when the vehicle has been stationary for at least three hours or not have traveled more than 1.6 km (1 mile) in this time.

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

Bead The tire bead ensures that the tire sits securely on the wheel. There are several steel wires in the bead to prevent the tire from coming loose from the wheel rim.

Weight of optional extras The combined weight of those optional extras that weigh more than the replaced standard part and more than 2.3 kilograms (5 lbs). These optional extras, such as high- performance brakes, level control, a roof rack or a high-performance battery, are not included in the curb weight and accessory weight.

TIN (Tire Identification Number) This is a unique identifier which can be used by a tire manufacturer to identify tires, for example for a product recall, and thus identify the purchasers. The TIN is made up of the manufacturer's identity code, tire size, tire type code and the manufacturing date.

Load bearing index The load bearing index (also load index) is a code that contains the maximum load bearing capacity of a tire.

Traction Traction is the result of friction between the tires and the road surface.

TWR (Tongue Weight Rating) The TWR specifies the maximum permissible weight that the ball coupling of the trailer tow hitch can support.

362 Changing a wheel

Treadwear indicators Narrow bars (tread wear bars) that are distributed over the tire tread. If the tire tread is level with the bars, the wear limit of 1/16 in (1.6 mm) has been reached.

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

Total load limit Rated cargo and luggage load plus 68 kilograms (150 lbs) times the vehicle's designated seating capacity.

Changing a wheel Flat tire The "Roadside Assistance" section (Y page 316) contains information and notes on how to deal with a flat tire. It also provides instructions on changing a wheel or mounting the spare wheel/emergency spare wheel.

Interchanging the wheels G WARNING Rotate front and rear wheels only if the tires 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. G WARNING Have the tightening torque checked after changing a wheel. The wheels could come loose if they are not tightened to a torque of 110 lb-ft (150 Nm). Only use genuine Mercedes-Benz wheel bolts specified for your vehicle's rims.

The wear patterns on the front and rear tires differ, depending on the operating conditions. Rotate the wheels before a clear wear pattern has formed on the tires. Front tires typically wear more on the shoulders and the rear tires in the center. If your vehicle's tire configuration allows, you can rotate the wheels according to the intervals in the tire manufacturer's warranty book in your vehicle documents. If this is not available, the tires should then be replaced every 3000 to 6000 miles (5000 to 10,000 km), or earlier if the tire wear requires this. Do not change the direction of wheel rotation. Clean the contact surfaces of the wheel and the brake disc thoroughly every time a wheel is interchanged. Check the tire pressures. Information on changing a wheel and mounting the spare wheel (Y page 321). ! On vehicles equipped with a tire pressure

monitor, electronic components are located in the wheel. Tire-mounting tools should not be used near the valve. This could damage the electronic components. Always have the tires changed at a qualified specialist workshop, e.g. an authorized Mercedes-Benz Center.

Direction of rotation Tires with a specified direction of rotation have additional benefits, e.g. if there is a risk of hydroplaning. You will only gain these benefits if the correct direction of rotation is maintained. An arrow on the sidewall of the tire indicates its correct direction of rotation. You may mount a spare wheel/emergency spare wheel against the direction of rotation. Observe the time restriction on use as well as the speed limit specified on the spare wheel/ emergency spare wheel.

Storing wheels Store wheels that are not being used in a cool, dry and preferably dark place. Protect the tires from oil, grease, gasoline and diesel.

Cleaning the wheels G WARNING Do not use power washers with circular-jet nozzles (dirt grinders) to clean your vehicle, in particular the tires. You could otherwise damage the tires and cause an accident.

Wheel and tire combinations Please bear the following in mind ! For safety reasons, Mercedes-Benz

recommends that you only use Tires and wheels which have been approved by Mercedes-Benz specifically for your vehicle. These tires have been specially adapted for use with the control systems, such as ABS or ESP®, and are marked as follows: RMO = Mercedes-Benz Original RMOE = Mercedes-Benz Original Extended (tires featuring run-flat characteristics)

RMO1 = Mercedes-Benz Original (only

certain AMG tires)

Mercedes-Benz Original Extended tires may only be used on wheels that have been specifically approved by Mercedes-Benz. Only use tires, wheels or accessories tested and approved by Mercedes-Benz. Certain characteristics, e.g. handling, vehicle noise emissions or fuel consumption, may otherwise be adversely affected. In addition, when driving with a load, tire dimension variations could cause the tires to come into contact with the bodywork and axle components. This could result in damage to the tires or the vehicle.

Wheel and tire combinations

363

Mercedes-Benz accepts no liability for damage resulting from the use of tires, wheels or accessories other than those tested and approved. Further information about tires, wheels and approved combinations can be obtained from any authorized Mercedes-Benz Center.

i The Tire and Load Information placard with the recommended tire pressures is attached to the B-pillar on the driver's side. Further information about driving at high speeds or driving with vehicle loads that are lighter than the maximum vehicle load can be found in the tire pressure table on the inside of the fuel filler flap. Check tire pressures regularly, and only when the tires are cold. Comply with the maintenance recommendations of the tire manufacturer in the vehicle document wallet.

For further information on the recommended tire inflation pressure and on tire pressures for specific driving conditions, see (Y page 341). i Notes on the vehicle equipment – always

equip the vehicle: Rwith tires of the same size on a given axle

(left/right)

Rwith the same type of tires at a given time (summer tires, winter tires, MOExtended tires)

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 an authorized Mercedes-Benz Center.

i On the following pages, you can find

information on approved wheel rims and tire sizes for equipping your vehicle with winter tires. Winter tires are not available from the factory as standard equipment or optional extras.

364 Wheel and tire combinations

If you want to equip your vehicle with approved winter tires, it may be necessary to obtain wheel rims in the corresponding size, as the size of the approved winter tires may differ from the standard tires. This is dependent on the model and the equipment installed at the factory. The tires and wheel rims, as well as further information, can be obtained at a qualified specialist workshop, e.g. at an authorized Mercedes-Benz Center.

i Overview of abbreviations used in the

following tire tables: RBA: both axles RFA: front axle RRA: rear axle

In the following table, the wheel/tire combinations are allocated to the vehicle models through variants, e.g. V1, V2 etc.:

V1 GL 350 BlueTEC V2 GL 450
V3 GL 550

Wheel and tire combinations

365

Tires

BA

BA

BA

BA

BA

All-weather tires 275/55 R19 111 H M+S41, 42

275/50 R20 109 H M+SMOExtended41, 43, 44

295/40 R21 111 V XL M+S41

Alloy wheels 8.5 J x 19 H2
Wheel offset: 2.20 in (56 mm) 8.5 J x 20 H2
Wheel offset: 2.20 in (56 mm) 10.0 J x 21 H2
Wheel offset: 1.46 in (37 mm)

V1 V2 V3

—

—

All-terrain tires 275/55 R19 111 H M+S41, 45

Alloy wheels 8.5 J x 19 H2
Wheel offset: 2.20 in (56 mm)

V1 V2 V3

Winter tires46
265/55 R19 109 H M+Si45

Alloy wheels 8.5 J x 19 H2
Wheel offset: 2.20 in (56 mm)

V1 V2 V3

"Minispare" emergency spare wheel41
Tires T 165/90 D19 119 M Tire pressure: 420 kPa (4.2 bar/61 psi) T 165/90 R19 119 M Tire pressure: 420 kPa (4.2 bar/61 psi)

Wheels 4.5 B x 19 H2
Wheel offset: 1.58 in (40 mm) 4.5 B x 19 H2
Wheel offset: 1.58 in (40 mm)

V1 V2 V3
—

—

i The specified tire pressure is printed in yellow on the emergency spare wheel.

41 Use of snow chains is not permitted. Observe the notes in the "Snow chains" section. 42 GL 350 BlueTEC: Canada only. 43 MOExtended tires (tires with run-flat characteristics) only in combination with an activated tire pressure loss

warning system or tire pressure monitor.

44 GL 350 BlueTEC: USA only. 45 GL 350 BlueTEC (USA only): standard tires without run-flat characteristics. Equipping with a TIREFIT kit is

recommended.

46 Not available ex factory.

366

Useful information ............................ 368
Genuine Mercedes-Benz parts ......... 368
Warranty ............................................ 368
Identification plates ......................... 369
Service products and capacities ..... 370
Vehicle data ...................................... 377

367

368 Warranty

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 Please read the information on qualified

specialist workshops (Y page 24).

Genuine Mercedes-Benz parts

All Mercedes-Benz Centers maintain a supply of genuine Mercedes-Benz parts for necessary service and repair work. In addition, strategically located parts delivery centers provide for quick and reliable parts service. There are more than 300,000 different genuine Mercedes-Benz parts available for Mercedes-Benz models. Genuine Mercedes-Benz parts are subject to strict quality control. Each part has been specially developed, manufactured or selected for Mercedes-Benz vehicles and fine-tuned for them. Therefore, only genuine Mercedes-Benz parts should be used. G WARNING Driving safety may be impaired if non- approved parts, tires and wheels or safety- relevant accessories are used. This could lead to malfunctions in safety- relevant systems, e.g. the brake system. This could cause you to lose control of your vehicle and cause an accident. For this reason, Mercedes-Benz recommends that you use genuine Mercedes-Benz parts or parts of equal quality. Only use tires, wheels

and accessories that have been specifically approved for your vehicle.

! Air bags and Emergency Tensioning Devices, as well as control units and sensors for these restraint systems may be installed in the following areas of your vehicle: Rdoors Rdoor pillars Rdoor sills Rseats Rdashboard Rinstrument cluster Rcenter console Do not install accessories such as audio systems in these areas. Do not carry out repairs or welding. You could impair the operating efficiency of the restraint systems. Have aftermarket accessories installed at a qualified specialist workshop. Mercedes- Benz recommends that you use an authorized Mercedes-Benz Center for this purpose. H Environmental note Daimler AG also supplies reconditioned major assemblies and parts which are of the same quality as new parts. They are covered by the same Limited Warranty entitlements as new parts.

Always specify the vehicle identification number (VIN) (Y page 369) and the engine number (Y page 370) when ordering genuine Mercedes-Benz parts.

Warranty

The Service and Warranty Information booklet contains detailed information about the warranties covering your vehicle.

Your authorized Mercedes-Benz Center will exchange or repair any defective parts originally installed in the vehicle in accordance with the terms of the following warranties: RNew Vehicle Limited Warranty REmission System Warranty REmission Performance Warranty RCalifornia, Connecticut, Maine,

Massachusetts, New York, Pennsylvania, Rhode Island and Vermont Emission Control Systems Warranty47

RState Warranty Enforcement Laws (Lemon

Laws)

Replacement parts and accessories are covered by the Mercedes-Benz Parts and Accessories warranties. You can obtain information about this from any authorized Mercedes-Benz Center. i Should you lose your Service and

Warranty Information booklet, have an authorized Mercedes-Benz Center arrange for a replacement. It will be mailed to you.

Identification plates Vehicle identification plate with vehicle identification number (VIN) and paint code number

X Open the driver's door.

You will see vehicle identification plate :.

47 Only vehicles with a gasoline engine.

Identification plates

369

Example: vehicle identification plate (USA only) ; Paint code = VIN

Example: vehicle identification plate (Canada only) ; Paint code = VIN i The data shown on the identification plate is example data. This data is different for every vehicle and can deviate from the data shown here. You can find the data applicable to your vehicle on the vehicle's identification plate.

Vehicle identification number (VIN) The vehicle identification number (VIN) can be found in the following locations: Ron the vehicle identification plate

Rat the lower edge of the windshield

(Y page 369)

(Y page 370)

370 Service products and capacities

In addition to being stamped on the vehicle identification plate, the vehicle identification number (VIN) is also stamped onto the vehicle body. It is located under the right-hand seat in the 2nd row of seats.

X Fold carpet : under the right-hand seat

forwards. You will see the vehicle identification number (VIN).

Engine number

: Emission control information plate,

including the certification of both federal and Californian emissions standards

; Engine number (stamped into the

crankcase)

= VIN (on the lower edge of the windshield)

Service products and capacities Important safety notes Service products include the following: Rfuels (e.g. gasoline, diesel) Radditives for exhaust gas aftertreatment

(DEF)

Rlubricants (e.g. engine oil, transmission oil) Rcoolant Rbrake fluid Rwindshield washer fluid Vehicle components and their respective lubricants must match. You should therefore only use products that have been tested and approved by Mercedes-Benz. Information on tested and approved products can be obtained at a Mercedes-Benz Center or on the Internet at http:// www.mbusa.com (USA only). G WARNING Comply with all valid regulations with respect to handling, storing and disposing of service fluids. Otherwise, you could endanger persons or the environment. Keep service fluids out of the reach of children. For health reasons, you should prevent service fluids from coming into direct contact with your skin or clothing. If a service fluid is swallowed, contact a physician immediately.

Service products and capacities

371

Capacities

Vehicle model

Capacity

Engine oil and filter

Power steering

GL 350 BlueTEC GL 450
GL 550
All models

Cooling system GL 350 BlueTEC

GL 450
GL 550
All models All models

Tank capacity Reserve

9.0 US qt (8.5 l) 9.5 US qt (9.0 l)

Approximately 1.1 US qt (1.0 l)

Approximately 10.0 US qt (9.5 l) Approximately 12.7 US qt (12.0 l)

26.4 US gal (100.0 l) Approximately 3.4 US gal (13.0 l)

DEF tank

GL 350 BlueTEC

8.3 US gal (31.7 l)

Fuel, coolant, lubricants etc. Approved engine oils

MB power steering fluid or approved Dexron III ATF MB 326.0 corrosion inhibitor/antifreeze agent

Gasoline engines: premium-grade unleaded gasoline (at least 91 octane, average value between 96 RON/ 86 MON) Diesel engines: ULTRA-LOW SULFUR HIGHWAY DIESEL FUEL (ULSD, maximum sulfur content 15 ppm) DEF in accordance with ISO 22241

372 Service products and capacities

Vehicle model

Capacity

All models

—

All models

7.6 US qt (7.2 l)

Air- conditioning system

Windshield/ headlamp cleaning system

Fuel, coolant, lubricants etc. Refrigerant R134a and special PAG lubricant (never R 12) MB windshield washer concentrate48
(Y page 377) Mixing ratio for washer fluid (Y page 377)

Fuel Important safety notes G WARNING Gasoline and diesel fuels are highly flammable and poisonous. They burn violently and can cause serious injury. Never allow sparks, flames or smoking materials near gasoline or diesel fuel! Turn off the engine before refueling. Whenever you are around gasoline or diesel fuel, avoid inhaling fumes and any skin or clothing contact. Extinguish all smoking materials. Direct skin contact with fuels and the inhalation of fuel vapors are damaging your health.

Premium-grade unleaded gasoline ! To ensure the longevity and full

performance of the engine, only premium- grade unleaded gasoline must be used.

If no premium-grade unleaded gasoline is available and regular unleaded gasoline must be used, observe the following precautions: Ronly fill the fuel tank to half full with

regular unleaded gasoline and fill the rest with premium-grade unleaded gasoline as soon as possible.

Rdo not drive at the maximum speed. Ravoid sudden acceleration. Rwhen the vehicle is carrying a light load, e.g. two passengers without luggage, do not allow the engine to rev above 3000 rpm.

Rwhen the vehicle is fully loaded or in

mountainous terrain, do not depress the accelerator pedal further than ⅔ of the pedal travel.

Fuel requirements Gasoline engines Use only premium-grade unleaded gasoline. The octane number should be at least 91. Details can be found on the gas pump. The octane number is the average value of the Research Octane Number (RON) and the

48 Mixed with water or premixed washer fluid with antifreeze protection.

Service products and capacities

373

Motor Octane Number (MON): (RON + MON) / 2, also known as knock resistance. Reformulated Gasoline (RFG) and/or unleaded gasoline with additives can be used if the concentration of the additives in the fuel does not exceed 10%, e.g.: REthanol RTAME RETBE RIPA RTBA For MTBE, the concentration should not exceed 15%. The concentration of methanol in gasoline including other additives must not exceed 3%. Using mixtures of methanol and ethanol is not permitted. Gasohol, a mixture of 10% ethanol and 90% unleaded gasoline, can be used. All of these mix fuels must fulfill the fuel requirements, e.g.: Rknock resistance Rboiling point Rvapor pressure Diesel engines – Important safety notes ! Only use commercially available ULTRA- LOW SULFUR DIESEL FUEL (ULSD, 15 ppm MAXIMUM SULFUR) that meets the ASTM D975 standard. Failure to use ULTRA-LOW SULFUR DIESEL FUEL (ULSD) can severely damage the vehicle's exhaust gas aftertreatment system.

! Do not fill the tank with gasoline. Do not blend diesel fuel with gasoline or kerosene. Otherwise, the fuel system and the engine could be damaged.

To prevent malfunctions, diesel fuel with improved flow characteristics is available in the winter months. Check with your gas station. Information on the fuel grade can usually be found on the gas pump. If the information cannot be found on the gas pump, ask the gas station personnel. For further information,

consult an authorized Mercedes-Benz Center or go to the Internet site http://www.mbusa.com (USA only). Diesel engines – Fuels containing biodiesel (FAME [fatty acid methyl ester]) Mercedes-Benz USA approves the use of B5
(ULSD with a maximum of up to five percent by volume biodiesel) for all diesel engines with common rail direct injection (CDI) and BlueTEC. Pure biodiesel and diesel fuels that have a higher percentage of biodiesel, e.g. B20, can damage the fuel system and the engine and are therefore not approved. For further information, please ask the gas station personnel. The label on the gas pump must indicate clearly that the B5 biodiesel blend fulfills the ULSD standard. If the label is not clear, do not refuel the vehicle. Do not refuel your vehicle with fuels unless they have been approved by Mercedes-Benz.

Additives in gasoline One of the major problems with poor quality fuels is the creation of carbon deposits during the combustion process. Mercedes-Benz recommends that you use fuel brands containing additives that prevent the build-up of carbon deposits. If you use fuels without these additives for an extended period of time, there may be a build up of carbon deposits, especially on the inlet valves and in the combustion chamber. This could lead to engine running problems, e.g.: Rlonger engine warm-up phase Runeven idle Rengine noise Rmisfiring Rloss of power In areas where the availability of gasoline with relevant additives is not adequate, carbon deposits can form. In this case, Mercedes- Benz recommends the use of additives that

374 Service products and capacities

have been approved for Mercedes-Benz vehicles. Consult an authorized Mercedes-Benz Center or go to the Internet site http://www.mbusa.com (USA only) for a list of approved products. Observe the instructions for use on the product label. Do not mix other fuel additives with fuel. This causes unnecessary costs and could damage the engine. ! Do not refuel with low-grade fuel and do not use fuel additives that are not tested and approved for Mercedes-Benz vehicles. Damage to or malfunctions of the fuel system may otherwise occur.

DEF Important safety notes i For BlueTEC vehicles only. DEF is a non-flammable, non-toxic, colorless, odorless and water-soluble fluid. ! Only use DEF that complies with ISO 22241. Do not add any special additives to DEF and do not thin DEF with water. This could destroy the BlueTEC exhaust gas aftertreatment.

! Rinse surfaces that have come into

contact with DEF immediately with water or remove DEF using a damp cloth and cold water. If the DEF has already crystallized, use a sponge and cold water to clean it. DEF residues crystallize after time and contaminate the affected surfaces.

High outside temperatures If DEF heats up over 122 ‡ (50 † ) for longer periods, e.g. as a result of direct sunlight on the DEF reservoir, DEF can decompose. Ammonia vapors develop as a result. G WARNING When opening the filler cap of the DEF tank ammonia gas vapors may escape. Refill DEF

in a well ventilated area only. Ammonia gas vapors have a pungent odor and are particularly irritating for your skin, mucous membranes, and eyes. Inhaling ammonia gas vapors will cause burning eyes, nose, and throat, as well as coughing and watering eyes.

Low outside temperatures DEF freezes at a temperature of approximately 12 ‡ (–11 † ). The vehicle is equipped with a DEF preheating system when it leaves the factory. Winter operation is therefore also guaranteed at temperatures below 12 ‡(–11 † ).

Additives ! Only use DEF in accordance with ISO

22241. Do not use additives with DEF and do not dilute DEF with water. This may destroy the BlueTEC exhaust gas aftertreatment system. Damage resulting from the use of additives or water is not covered by the Mercedes- Benz Limited Warranty.

Purity Assuring the purity of DEF is particularly important with respect to avoiding malfunctions in the exhaust gas aftertreatment system. If DEF is pumped out of the DEF tank, e.g. during repair work, it must not be returned to the tank. The purity of the fluid can no longer be guaranteed. ! Impurities in DEF, e.g. due to other

service products, cleaning agents or dust, lead to increased emission values, system malfunctions, catalytic converter damage or damage to the BlueTEC system.

Engine oil Please bear the following in mind The engine oils are matched to the performance of Mercedes-Benz engines and service intervals. You should therefore only use engine oils and oil filters that are approved for vehicles with maintenance systems. For a list of approved engine oils and oil filters, consult an authorized Mercedes-Benz Center or go to the Internet site http://www.mbusa.com (USA only). ! Never use engine oil or an oil filter of a specification other than is necessary to fulfill the prescribed service intervals. Do not change the engine oil or oil filter in order to achieve longer replacement intervals than those prescribed. You could otherwise cause engine damage or damage to the exhaust gas aftertreatment. Follow the instructions in the service interval display regarding the oil change. Otherwise, you may damage the engine and the exhaust gas aftertreatment.

The table shows which engine oils have been approved for your vehicle. Model

Engine model 642
273
273

MB Approval 229.51
229.5
229.5

GL 350 BlueTEC GL 450
GL 550

i MB Approval is indicated on the oil

containers.

Additives ! Do not use any additives in the engine oil.

This could damage the engine.

Service products and capacities

375

Engine oil viscosity Viscosity describes the flow characteristics of a fluid. If an engine oil has a high viscosity, this means that it is thick; a low viscosity means that it is thin. Select an engine oil with an SAE (viscosity) classification suitable for the prevailing outside temperatures. The following table shows the correct SAE classification to be used. The low-temperature characteristics of engine oils can deteriorate significantly, e.g. as a result of aging, soot and fuel deposits. It is therefore strongly recommended that you carry out regular oil changes using an approved engine oil with the appropriate SAE classification.

Refrigerant of the air-conditioning system The air-conditioning system is filled with R134a refrigerant and a special PAG lubricant. ! Never use refrigerant R 12 (CFC) or

mineral lubricants. Otherwise, you could damage the air-conditioning system.

Brake fluid G WARNING The brake fluid constantly absorbs moisture from the air; this lowers its boiling point. If the boiling point of the brake fluid is too low, vapor pockets may form in the brake system

376 Service products and capacities

when the brakes are applied hard (e.g. when driving downhill). This would impair braking efficiency. You should have the brake fluid renewed at regular intervals. The brake fluid change intervals can be found in the Service Booklet.

Only use brake fluid approved by Mercedes- Benz. Information about approved brake fluids can be obtained from any authorized Mercedes-Benz Center.

Coolant Important safety notes The coolant is a mixture of water and antifreeze/corrosion inhibitor. It performs the following tasks: Ranti-corrosion protection Rantifreeze protection Rraising the boiling point The engine cooling system is filled at the factory with coolant which contains an antifreeze/corrosion inhibitor that ensures protection down to approximately -35 ‡ (-37 † ). ! Only add coolant that has been premixed

with the desired antifreeze protection. Otherwise, the engine could be damaged. Further information on coolants and on filling can be found in the Mercedes-Benz Specifications for Service Products, MB Approval 310.1, e.g. on the Internet at http://bevo.mercedes-benz.com. You can also consult an authorized Mercedes-Benz Center.

! Always use a suitable coolant mixture,

even in countries where high temperatures prevail. Otherwise, the cooling system will not be sufficiently protected from corrosion, and the boiling point will be too low.

If the coolant has antifreeze protection down to -35 ‡ (-37 † ), the boiling point of the

coolant in the pressurized system is approximately 266 ‡ (130 † ). Your vehicle has a range of aluminum components. Use of aluminum components in the engine make it necessary to specifically match the antifreeze/corrosion inhibitor in these systems in order to protect the aluminum parts. Using other antifreeze/ corrosion inhibitors without these characteristics affects the service life. The coolant must be used throughout the year in order to maintain the necessary corrosion protection and provide protection from overheating. In the Service Booklet, you can find information on the intervals for renewal. The renewal interval is determined by the coolant type and the engine cooling system design. The renewal interval in the Service Booklet is only valid if the coolant is renewed or replenished with Mercedes-Benz approved products. Therefore, only use MB 326.0
antifreeze/corrosion inhibitor or another Mercedes-Benz approved product of the same specification. Information on other products with the same specifications that are approved by Mercedes-Benz can be obtained at an authorized Mercedes-Benz Center or on the Internet at http://bevo.mercedes-benz.com. The coolant is checked at every maintenance interval at an authorized Mercedes-Benz Center. The antifreeze/corrosion inhibitor concentration in the engine cooling system should: Rbe at least 50%. This will protect the engine

cooling system against freezing down to approximately -35 ‡ (-37 † ).

Rnot exceed 55% (antifreeze protection to -49 ‡ [-45 † ]); otherwise, heat will not dissipate as effectively.

If the coolant level is too low, MB 326.0
antifreeze/corrosion inhibitor should be added. Have the engine cooling system checked for possible leaks.

Vehicle data 377

Windshield/headlamp cleaning system G WARNING Washer solvent/antifreeze is highly flammable. Do not spill washer solvent/ antifreeze on hot engine parts, because it may ignite and burn. You could be seriously burned.

Use MB SummerFit windshield washer concentrate at temperatures above freezing: X Mix 1 part MB SummerFit with 100 parts

water.

Use MB WinterFit windshield washer concentrate at temperatures below freezing: X At temperatures down to 14 ‡(Ò 10 †): mix

1 part MB WinterFit with 2 parts water.

X At temperatures down to Ò 4 ‡(Ò 20 †): mix

1 part MB WinterFit with 1 part water.

X At temperatures down to

Ò 20.2 ‡(Ò 29 †): mix 2 parts MB WinterFit with 1 part water.

! Only SummerFit and WinterFit can be

mixed. Otherwise, the jets could become blocked.

Vehicle data Vehicle data, GL 350 BlueTEC The data stated here refers specifically to a vehicle with standard equipment. Consult an authorized Mercedes-Benz Center for the data for all vehicle variants and trim levels.

Vehicle dimensions, GL 350 BlueTEC Vehicle length 201.1 in (5108 mm) Vehicle width 85.4 in (2170 mm) including exterior mirrors Vehicle height

72.4 - 75.6 in (1840 - 1920 mm)49
72.4 - 76.8 in (1840 - 1950 mm)50
Wheelbase 121.1 in (3075 mm) Front track 64.8 in (1645 mm) Rear track 65.0 in (1650 mm) Ground clearance 8.0 - 10.9 in (202 -

277 mm)49
8.0 - 12.1 in (202 - 307 mm)50
39.7 ft (12.1 m)

Turning circle

Vehicle weight, GL 350 BlueTEC Maximum 198 lb (90 kg)

Maximum roof load

Vehicle data, GL 450
The data stated here refers specifically to a vehicle with standard equipment. Consult an authorized Mercedes-Benz Center for the data for all vehicle variants and trim levels.

49 Vehicles without Off-road Pro engineering package: the values vary depending on the level set for the vehicle

50 Vehicles with Off-road Pro engineering package: the values vary depending on the level set for the vehicle

suspension.

suspension.

378 Vehicle data

Vehicle dimensions, GL 450

Vehicle dimensions, GL 550

Vehicle length Vehicle width including exterior mirrors Vehicle height

201.1 in (5108 mm) 85.4 in (2170 mm)

201.1 in (5108 mm) 85.4 in (2170 mm)

Vehicle length Vehicle width including exterior mirrors Vehicle height

72.4 - 75.6 in (1840 - 1920 mm)51
72.4 - 76.8 in (1840 - 1950 mm)52
Wheelbase 121.1 in (3075 mm) Front track 64.8 in (1645 mm) Rear track 65.0 in (1650 mm) Ground clearance 8.0 - 10.9 in (202 -

72.4 - 75.6 in (1840 - 1920 mm)53
72.4 - 76.8 in (1840 - 1950 mm)54
Wheelbase 121.1 in (3075 mm) Front track 66.3 in (1683 mm) Rear track 66.5 in (1688 mm) Ground clearance 8.0 - 10.9 in (202 -

277 mm)51
8.0 - 12.1 in (202 - 307 mm)52
39.7 ft (12.1 m)

277 mm)53
8.0 - 12.1 in (202 - 307 mm)54
39.7 ft (12.1 m)

Turning circle

Turning circle

Vehicle weight, GL 450

Vehicle weight, GL 550

Maximum roof load

Maximum 198 lb (90 kg)

Maximum roof load

Maximum 198 lb (90 kg)

Vehicle data, GL 550
The data stated here refers specifically to a vehicle with standard equipment. Consult an authorized Mercedes-Benz Center for the data for all vehicle variants and trim levels.

51 Vehicles without Off-road Pro engineering package: the values vary depending on the level set for the vehicle

52 Vehicles with Off-road Pro engineering package: the values vary depending on the level set for the vehicle

53 Vehicles without Off-road Pro engineering package: the values vary depending on the level set for the vehicle

54 Vehicles with Off-road Pro engineering package: the values vary depending on the level set for the vehicle

suspension.

suspension.

suspension.

suspension.

379

380

Publication details Internet

Further information about Mercedes-Benz vehicles and about Daimler AG can be found on the following websites: http://www.mbusa.com (USA only) http://www.mercedes-benz.ca (Canada only)

Editorial office

Not to be reprinted, translated or otherwise reproduced, in whole or in part, without the written permission of Daimler AG.

As at 03.11.2010

É1645846783YËÍ 1645846783

Order no. 6515 4349 13 Part no. 164 584 67 83 Edition A 2012

GL

Operator's Manual

! These warning notes draw your attention to hazards that could cause damage to your vehicle.

i This symbol indicates useful instructions or further information that could be helpful to you.

Y Page

YY

This symbol designates an instruction you must follow. Several consecutive symbols indicate an instruction with several steps. This symbol tells you where you can find further information on a topic. This symbol indicates a warning or an instruction that is continued on the next page.

Display This font indicates a display message in the multifunction display/COMAND display.

Parts of the software in the vehicle are subject to copyright according to © 2005
The FreeType Project http://www.freetype.org. All rights reserved.

Symbols Registered trademarks: RBabySmart™ is a registered trademark of

the Siemens Automotive Corp.

RBluetooth® is a registered trademark of the

Bluetooth SIG Inc.

RDTS is a registered trademark of DTS, Inc. RDolby and MLP are registered trademarks

of Dolby Laboratories.

RESP® and PRE-SAFE® are registered

trademarks of Daimler AG.

RHomeLink® is a registered trademark of

Prince, a Johnson Controls Company.

RiPod® and iTunes® are registered

trademarks of Apple Inc., registered in the USA and in other countries.

RLogic 7® is a registered trademark of

Harman International Industries, Incorporated.

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Microsoft Corporation in the USA and in other countries.

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registered trademarks of SIRIUS XM Radio Inc.

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Gracenote, Inc.

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registered trademarks of Zagat.

In this Operator's Manual, you will find the following symbols: G WARNING Warning notes draw your attention to hazards that endanger your health or life, or the health or life of others.

Welcome to the world of Mercedes-Benz Before you drive off, please familiarize yourself with your vehicle and read this manual, especially the safety and warning notes. This will help you to obtain the maximum pleasure from your vehicle and avoid endangering yourself and others. The equipment or model designation of your vehicle may differ according to: Rmodel Rorder Rcountry variant Ravailability Mercedes-Benz is constantly updating its vehicles to the state of the art. Mercedes-Benz therefore reserves the right to introduce changes in the following areas: Rdesign Requipment Rtechnical features Therefore, you cannot base any claims on the illustrations or text content in this Operator's Manual. The following are integral components of the vehicle: ROperator's Manual RBrief Instructions1
RService Booklet REquipment-dependent supplements Keep these documents in the vehicle at all times. When you sell the vehicle, always pass the documents on to the new owner. The technical documentation team at Daimler AG wishes you safe and pleasant motoring. Mercedes-Benz USA, LLC Mercedes-Benz Canada, Inc. A Daimler Company

1 Canada only.

1645846783 É1645846783YËÍ

Contents

Index ....................................................... 4

At a glance ........................................... 27

Introduction ......................................... 21

Safety ................................................... 37

Opening/closing ................................. 75

Seats, steering wheel and mirrors .... 97

Lights and windshield wipers .......... 117

Climate control ................................. 133

Driving and parking .......................... 147

On-board computer and displays .... 215

Stowing and features ....................... 267

Maintenance and care ...................... 299

Breakdown assistance ..................... 313

Wheels and tires ............................... 337

Technical data ................................... 367

4

Index

1, 2, 3 ... 115 V socket ...................................... 286
12 V socket

see Sockets 4ETS (Electronic Traction System) .... 70
4MATIC (permanent four-wheel drive) .................................................. 203

ABS (Anti-lock Braking System)

Display message ............................ 233
Function/notes ................................ 68
Important safety notes .................... 68
Warning lamp ................................. 260

Activating/deactivating cooling with air dehumidification ................. 139
Active light function ......................... 122
Active Light System

Display message ............................ 243

Active service system PLUS

see ASSYST PLUS service interval display Adaptive Damping System (ADS) ..... 195
Additives (engine oil) ........................ 375
ADS (Adaptive Damping System) ..... 195
Air bags

Display message ............................ 239
Front air bag (driver, front passenger) ....................................... 42
Important safety notes .................... 40
Knee bag .......................................... 43
PASSENGER AIRBAG OFF indicator lamp .................................. 45
PASSENGER AIR BAG OFF indicator lamp (only Canada) ........... 50
PASSENGER AIR BAG OFF indicator lamp (only USA) ................ 45
Safety guidelines ............................. 39
Side impact air bag .......................... 43
Window curtain air bag .................... 44

Air-conditioning system

see Climate control Air filter (display message) .............. 247
Air pressure

see Tire pressure

Air vents

Important safety notes .................. 145
Rear ............................................... 146
Setting ........................................... 145
Setting the center air vents ........... 145
Setting the side air vents ............... 145

Alarm system

see ATA (Anti-Theft Alarm system)

Ambient lighting (on-board computer) .......................................... 225
Anti-lock Braking System

see ABS (Anti-lock Braking System)

Anti-Theft Alarm system

see ATA (Anti-Theft Alarm system)

Anti-theft system

ATA (Anti-Theft Alarm system) ......... 72
Approach/departure angle .............. 178
Ashtray ............................................... 284
ASSYST PLUS

see ASSYST PLUS service interval display

ATA (Anti-Theft Alarm system)

Activating/deactivating ................... 72
Function ........................................... 72
Switching off the alarm .................... 72
Audio menu (on-board computer) .... 221
Audio system

see separate operating instructions

Authorized Mercedes-Benz Center

see Qualified specialist workshop

AUTO lights

Display message ............................ 244
see Lights Automatic headlamp mode .............. 119
Automatic transmission

Changing gear ............................... 156
DIRECT SELECT lever ..................... 154
Display message ............................ 254
Driving tips .................................... 157
Emergency running mode .............. 159
Kickdown ....................................... 157
Problem (malfunction) ................... 159
Pulling away ................................... 151
Shift ranges ................................... 157
Starting the engine ........................ 150
Steering wheel paddle shifters ...... 157
Trailer towing ................................. 157

Index

Battery (key)

Battery (SmartKey)

Battery (vehicle)

Checking .......................................... 80

Calling up a malfunction

Important safety notes .................... 80
Replacing ......................................... 80

Capacities

see Technical data

Transmission position display ........ 155
Transmission positions .................. 156

Automatic transmission emergency mode ............................... 159

Back support

Backup lamp

see Lumbar support

Changing bulbs (LEDs) ................... 127
Display message ............................ 243
BAS (Brake Assist System) ................. 69
Basic settings

see Settings

Charging ........................................ 328
Display message ............................ 246
Important safety notes .................. 326
Jump starting ................................. 329

Belt

see Seat belts

Blind Spot Assist

Activating/deactivating ................. 228
Display message ............................ 250
Notes/function .............................. 201
Trailer towing ................................. 203

BlueTEC

Adding DEF .................................... 164
BlueTEC (DEF) .................................... 374
Brake Assist System

see BAS (Brake Assist System)

Brake fluid

Display message ............................ 236
Notes ............................................. 375
Brake fluid level ................................ 304
Brake lamps

Display message ............................ 242

Brakes

ABS .................................................. 68
BAS .................................................. 69
Brake fluid (notes) ......................... 375
Display message ............................ 233

Driving tips .................................... 169
Important safety notes .................. 169
Maintenance .................................. 170
Parking brake ........................ 167, 171
Warning lamp ................................. 259

see Flat tire see Towing away

see Changing bulbs

Breakdown

Bulbs

California

Important notice for retail customers and lessees .................... 22

see Display messages

Car

Care

see Vehicle

Carpets .......................................... 312
Car wash ........................................ 306
Display ........................................... 310
Exterior lights ................................ 309
Gear or selector lever .................... 311
Matte finish ................................... 308
Notes ............................................. 305
Paint .............................................. 308
Plastic trim .................................... 310
Power washer ................................ 307
Rear view camera .......................... 310
Roof lining ...................................... 312
Seat belt ........................................ 311
Seat cover ..................................... 311
Sensors ......................................... 309
Steering wheel ............................... 311
Tail pipes ....................................... 310
Trim pieces .................................... 311
Washing by hand ........................... 307
Wheels ........................................... 307
Windows ........................................ 309
Wiper blades .................................. 309
Wooden trim .................................. 311
Cargo compartment cover ............... 273
Cargo compartment enlargement ... 270

6

Index

Cargo compartment floor ................. 314
Cargo net

Attaching ....................................... 275
Important safety information ......... 274
Cargo tie down rings ......................... 272
Car wash (care) ................................. 306
CD player/CD changer (on-board computer) .......................................... 221
Cell phone

see Mobile phone

Center console

Lower section .................................. 34
Upper section .................................. 32

Central locking

Automatic locking (on-board computer) ...................................... 226
Locking/unlocking (SmartKey) ........ 76

Changing bulbs

Backup lamp (LEDs) ....................... 127
High-beam headlamps ................... 125
Important safety notes .................. 123
License plate lighting ..................... 127
Low-beam headlamps .................... 125
Overview of bulb types .................. 124
Parking lamps ................................ 126
Rear fog lamp (LEDs) ..................... 127
Side marker lamps (front) .............. 126
Standing lamps (front) ................... 126
Turn signals (front) ......................... 126

Child-proof locks

Important safety notes .................... 66
Rear doors ....................................... 66

Children

Child seat

In the vehicle ................................... 61
Restraint systems ............................ 61

Automatic recognition ..................... 50
Automatic recognition/air bag deactivation, self-test ...................... 52
Display message ............................ 237
LATCH-type (ISOFIX ) child seat anchors ............................................ 63
Special seat belt retractor ............... 63
Top Tether ....................................... 64
Troubleshooting ............................... 53
Cigarette lighter ................................ 284

Classification system for occupants (OCS)

Faults ............................................... 49
Operation ......................................... 45
System self-test ............................... 48

Climate control

Automatic climate control (3- zone) .............................................. 136
Controlling automatically ............... 140
Cooling with air dehumidification . . 139
Defrosting the windshield .............. 142
Demisting the windows .................. 143
Dual-zone automatic climate control ........................................... 135
Important safety notes .................. 134
Indicator lamp ................................ 140
Notes on using automatic climate control ................................... 135, 138
Overview of systems ...................... 134
Problems with cooling with air dehumidification ............................ 140
Problem with the rear window defroster ........................................ 143
Rear control panel ......................... 136
Refrigerant ..................................... 375
Setting the air distribution ............. 142
Setting the airflow ......................... 142
Setting the air vents ...................... 145
Setting the temperature ................ 141
Switching air-recirculation mode on/off ............................................ 144
Switching on/off ........................... 138
Switching residual heat on/off ...... 144
Switching the MONO function on/ off .................................................. 142
Switching the rear window heating on/off ............................... 143
Clock (on-board computer) ............... 224
Cockpit

Overview .......................................... 28
see Instrument cluster

COMAND

see separate operating instructions Combination switch .......................... 121
Compass

Calling up ....................................... 296

Consumption statistics (on-board computer) .......................................... 229

Convenience closing feature .............. 91
Convenience opening feature ............ 91
Coolant (engine)

Checking the level ......................... 303
Display message ............................ 244
Notes ............................................. 376
Temperature gauge ........................ 220

Cooling

see Climate control Cornering light (display message) ... 241
Crash-responsive emergency lighting ............................................... 123
Crossbar

Installing ........................................ 278
Setting the span width ................... 280

Cruise control

Cruise control lever ....................... 180
Deactivating ................................... 181
Display message ............................ 250
Driving system ............................... 179
Function/notes ............................. 179
Important safety notes .................. 179
LIM indicator lamp ......................... 180
Setting a speed .............................. 181
Storing and maintaining current speed ............................................. 180

Cup holder

Center console .............................. 282
Important safety notes .................. 282
Rear compartment ......................... 282
third row of seats ........................... 282
Customer Assistance Center (CAC) ... 24
Customer Relations Department ....... 25

Dashboard

see Cockpit Date (on-board computer) ................ 224
Daytime running lamp mode

see Daytime running lamps

Daytime running lamps

Display message ............................ 243
Switching on/off (on-board computer) ...................................... 224
Switching on/off (switch) .............. 119

Index

DEF