2002 Mercedes-benz M Class Owners Manual

Important! Operating the vehicle on a single axle dynamometer should only be done for briefly testing the brakes. To do so, turn key in steering lock to position 1.

Driving systems

Instruments and controls

Operation

Driving

Instrument cluster display

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Instruments and controls

Driving systems

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Switching on:

1. Stop the vehicle. 2. Move transmission selector lever to position “N”. 3. Push top end of switch. The LOW RANGE indicator lamp in the instrument cluster blinks three times during the changeover.

Once the changeover is complete, the indicator lamp in the instrument cluster lights up continuously.

Note: If the indicator lamp blinks fast, one or more switching conditions were not observed, or the LOW RANGE mode is defective.

228

Switching off:

1. Stop the vehicle. 2. Move transmission selector lever to position “N”. 3. Push top end of switch. The LOW RANGE indicator lamp in the instrument cluster three times during the changeover.

Once the changeover is complete, the indicator lamp in the instrument cluster goes out. Use the gear selector lever normally.

Note: If the indicator lamp blinks fast, one or more switching conditions were not observed, or the LOW RANGE mode is defective.

Important! During off-road driving a special low range system for antilock brake system (ABS) and four-wheel electronic traction system (4-ETS+) are operational with transmission in the LOW RANGE mode. In the low range mode the electronic stability program (ESP) operates in a traction improving fashion specifically adapted for off-road driving. At speeds below 27 mph (45 km/h) the ESP assists in over-/ understeering, thus improving vehicle tracking. If one or more tires lose traction while driving downhill (accelerator released), the 4-ETS+ engages and the warning lamp v, located in the speedometer dial, starts to flash. When applying the service brakes at speeds below approximately 18 mph (30 km/h), the front wheels are locked cyclically to shorten the braking distance (dig in effect). This affects steering the vehicle.

Notes: Driving off or driving up to 3 mph (5 km/h) with the service brakes applied lightly (to reduce drive wheel spin), the 4-ETS+ remains engaged. Driving with the service brakes applied lightly at vehicles speeds above 3 mph (5 km/h), the 4-ETS+ will not engage. If the indicator lamp blinks fast, one or more switching conditions were not observed, or the LOW RANGE mode is defective. In the case of a defective in the LOW RANGE mode the transmission shifts in the usual manner. It is not possible to switch on the LOW RANGE mode. Have the transmission checked at your authorized Mercedes-Benz Light Truck Center as soon as possible.

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Instruments and controls

Parking system

Operation

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Parking assist (Parktronic) (optional) The Parktronic system assists the driver during parking maneuvers. It visually and audibly indicates the distance between the vehicle and an obstacle. The front area of the vehicle is monitored when driving forward. When reversing, the rear areas are monitored. With the electronic key in steering lock position 2, Parktronic engages automatically at speeds up to approximately 10 mph (15 km/h) and deactivates during higher speeds. Parktronic can be switched off by a control switch located in the center console. It engages automatically again when starting the engine. See page 234 for parktronic switch.

230

Warning! Parktronic is a supplemental system. It is not intended to nor does it replace the need for extreme care. The responsibility during parking and other critical maneuvers rests always with the driver. Special attention must be paid to objects having smooth surfaces or low silhouettes (e.g. trailer couplings, painted posts, or street curbs). Such objects may not be detected by the system and can damage the vehicle. The operational function of the Parktronic can be affected by dirty sensors, especially at times of snow and ice. See page 301 for notes on cleaning the parktronic system sensors. Interference caused by other ultrasonic signals (e.g. working jackhammers or the air brakes of trucks) can cause the system to send erratic indications, and should be taken into consideration.

Sensors

1 Sensors located in bumper

(front bumper shown)

P54.65-2366-26

A total of 10 sensors (1) monitor the vehicle’s front and rear areas. Six sensors are located in the front bumper, four sensors in the rear bumper. For proper operation of the Parktronic always keep the sensors clean, especially at times of snow and ice. See page 301 for instructions on cleaning the sensors in the bumpers.

Note: The rear Parktronic sensors will not automatically disengage when towing a trailer, therefore switch the Parktronic system off, see page 234. Switch the Parktronic system on again when no longer towing a trailer.

Parking system

Instruments and controls

Operation

Driving

Instrument cluster display

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231

Instruments and controls

Parking system

Operation

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Index

Warning indicators

P54.65-2363-26

1 Segments, left side 2 Segments, right side

232

Visual and audible signals indicate to the driver the relative distance between the vehicle and an obstacle. Warning indicators for the front area are located above the center air outlets in the dashboard. Warning indicators for the rear area are located in the rear passenger compartment lamp. Each warning indicator has 6 yellow and 2 red segments. As soon as the sensors detect an obstacle, one or more segments light up, depending on the distance. An intermittent acoustic warning will also sound as the seventh segment lights up and a constant acoustic warning lasting a maximum of 3 seconds will sound for the eighth segment.

Monitoring reach of sensors

Front bumper:

Center Corner

approx. 40 in approx. 24 in

(100 cm) (60 cm)

Rear bumper:

Center Corner

approx. 48 in approx. 32 in

(120 cm) (80 cm)

The first yellow segment lights up at these distances. Additional segments light up as the vehicle comes closer to the obstacle. Minimum distance between vehicle and obstacle at which the system stops indicating:

approx. 6 in Front corners Front center and rear approx. 8 in

(15 cm) (20 cm)

Parking system

Instruments and controls

Operation

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Instrument cluster display

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233

Instruments and controls

Parking system

Operation

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Index

All yellow and one or both red segments light up. Additionally, there is an acoustic warning lasting approximately 3 seconds. The obstacle may not be recognized if outside the shaded sensor field, and no longer be indicated when approaching it any closer (warning indicators go out).

Parktronic malfunction All red segments of the warning indicators light up, and a warning sounds for 3 seconds, if Parktronic does not function properly. A dirty sensor or other ultrasonic signals could be the reason. See page 301 for instructions on cleaning the sensors in the bumpers. After cleaning the sensors, turn electronic key in steering lock to position 2. If a malfunction continues to be displayed, have the system checked at your authorized Mercedes-Benz Center.

234

Parktronic switch

The switch is located on the center console.

1 Parktronic switched off 2 Parktronic switched on 3 Indicator lamp – comes on when Parktronic is

switched off

The parktronic system is switched on again when turning the electronic key in steering lock position 2.

What you should know at the gas station

P88.60-2040-26

Fuel supply

Warning! Gasoline is highly flammable and poisonous. It burns violently and can cause serious injury. Whenever you are around gasoline, avoid inhaling fumes and skin contact, extinguish all smoking materials. Never allow sparks, flame or smoking materials near gasoline!

The fuel filler flap is locked and unlocked together with the doors and liftgate using the electronic key. Open flap by pulling at rear (arrow). Turn fuel cap to the left and hold on to it until possible pressure in tank has been released, then remove cap. Failure to remove slowly could result in personal injury. The fuel filler cap is tethered to the fuel filler neck. Do not drop the cap. It could damage the vehicle paint finish. Manual release of fuel filler flap, see page 295.

Important! When refueling vehicle make certain that no gasoline comes into contact with plastic taillamp, to prevent damaging the lens.

Fuel To prevent fuel vapors from escaping into open air, fully insert filler nozzle unit. Only fill fuel tank until the filler nozzle unit cuts out – do not top off or overfill.

What you should know at the gas station

235

Instruments and controls

Operation

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Instrument cluster display

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What you should know at the gas station

236

• Engine oil

Engine oil level check, see page 96 and page 255. Fill quantity between upper and lower dipstick marking level: 2.1 US qt (2.0 l). Recommended engine oils, see Approved Service Products sheet.

Warning! Overfilling of fuel tank may result in creating pressure in the system which could cause a gas discharge such as the gas spraying back out upon removing the filler nozzle which could cause personal injury.

Leaving the engine running and the fuel cap open can cause the “CHECK ENGINE” lamp to illuminate. ML 320 and ML 500: Fuel tank capacity approximately 22.0 US gal (83.0 l). This includes approximately 3.2 US gal (12.0 l) reserve. ML 55 AMG: Fuel tank capacity approximately 25.0 US gal (95.0 l). This includes approximately 3.2 US gal (12.0 l) reserve. Use premium unleaded gasoline: Posted Octane Index 91 (Average of 96 RON/86 MON).

• Coolant

• Bulbs

For normal replenishing, use water (potable water quality). For further information (e.g. anticorrosion/ antifreeze), see page 314.

• Spark plugs

Approved spark plugs, see page 312.

• Tire pressure

For tire pressure, refer to tire pressure label inside the fuel filler flap. See page 272 for further details.

• Air conditioner

R-134a refrigerant and special PAG lubricant, see page 316.

high beam: H7(55 W), low beam: H7 (55 W) low beam: BiXenon D2S - 35 W (optional) fog lamps: H8 (35 W) fog lamps: H3 (55 W) (optional) turn signal, parking, side marker and standing lamps, front: 1157 (32/3 cp), stop lamps: P 21 W (1073 [32 cp]), backup lamps: P 21 W (1073 [32 cp]), turn signal lamps, rear: P Y 21 W, tail, parking, standing, and rear fog lamp, driver’s side: P 21/4 W, side marker lamp, rear: W 5 W, license plate lamps: C 5 W (tubular), high mounted stop lamp: P 21 W (1073 [32 cp]).

What you should know at the gas station

237

Instruments and controls

Operation

Driving

Instrument cluster display

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Instruments and controls

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Check regulary and before a long trip

238

Check regularly and before a long trip

1 Engine oil level

See “Checking engine oil level” on page 255 and “Engine oil level indicator” on page 96.

2 Coolant level

See “Coolant level” on page 256.

3 Brake fluid

See “Brake fluid” on page 316. 4 Windshield washer system/ Headlamp cleaning system/ Rear window washer system For refilling reservoir see page 258.

Opening hood, see page 253. Vehicle lighting: Check function and cleanliness. For replacement of light bulbs, see “Exterior lamps” on page 282. Exterior lamp switch, see page 97.

Instrument cluster display

Malfunction and

indicator lamps in the instrument cluster .............240
On-board diagnostic system – Check engine malfunction indicator lamp .............................240
Brake warning lamp .................. 241
Supplemental restraint system (SRS) indicator lamp ..................242
Fuel reserve warning .................242

Electronic stability program (ESP) / Electronic traction system (ETS) – warning lamp .. 243
BAS/ESP malfunction indicator lamp ............................ 243
4-ETS malfunction indicator lamp ............................ 243
LOW RANGE indicator lamp ............................ 243
ABS malfunction indicator lamp ............................ 244
Adjustable steering wheel – indicator lamp ............................ 244
AIRBAG OFF indicator lamp ............................ 244

Seat belt warning lamp .............245
Charge indicator lamp ...............245
Low engine oil level warning lamp ..............................246
Low engine coolant level warning ........................................246
Low windshield and headlamp washer system fluid level warning lamp ....................247
Brake pad wear i ndicator lamp ..............................247
FSS indicator ...............................247

Contents - Instrument cluster display

239

Instruments and controls

Operation

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Instrument cluster display

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Instruments and controls

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Index

Malfunction and indicator lamps

240

Malfunction and indicator lamps in the instrument cluster General information: If a bulb in the instrument cluster fails to light up during the bulb self-check when turning the key in steering lock to position 2, have it checked and replaced if necessary.

On-board diagnostic system Check engine malfunction indicator lamp

CHECK ENGINE

Engine malfunction indicator lamp. If the “CHECK ENGINE” malfunction indicator lamp comes on when the engine is running,

it indicates a malfunction of the fuel management system, emission control system, systems which impact emissions, or the fuel cap is not closed tight (check the fuel cap). If the “CHECK ENGINE” lamp is illuminated continuously and the vehicle is driving normally, you may still drive the vehicle, however, in all cases, we recommend that you have the system checked at your authorized Mercedes-Benz Light Truck Center as soon as possible. If the “CHECK ENGINE” lamp comes on continuously and/or the vehicle is not driving normally (e.g. malfunction of the fuel management system or running

out of fuel), serious damage can occur to the emission system. Please contact your authorized Mercedes-Benz Light Truck Center immediately. The Sequential Multiport Fuel Injection (SFI) control module monitors emission control components that either provide input signals to or receive output signals from the control module. Malfunctions resulting from interruptions or failure of any of these components are indicated by the “CHECK ENGINE” malfunction indicator lamp in the instrument cluster and are simultaneously stored in the SFI control module. If the “CHECK ENGINE” malfunction indicator lamp comes on, have the system checked at your authorized Mercedes-Benz Light Truck Center as soon as possible. With some exceptions, the control module switches off the “CHECK ENGINE” malfunction indicator lamp if the condition, causing the lamp to come on, no longer exists during three consecutive cycles. See also page 242 for fuel cap placement warning. An on-board diagnostic connector is located in the passenger compartment near to the parking brake pedal, allowing the accurate identification of system malfunctions through the readout of diagnostic trouble codes.

Notes: When running out of fuel, the “CHECK ENGINE” malfunction indicator lamp comes on and the engine possibly switches to its limp-home (emergency operation) mode. To cancel the limp-home mode, the engine may have to be started three or four times after refueling. The malfunction indicator lamp remains illuminated. Have the system checked at your authorized Mercedes-Benz Center immediately.

Brake warning lamp

BRAKE

The warning lamp in the instrument cluster comes on with the key in steering lock position 2 and should go out with the engine

running. When the brake warning lamp appears while the engine is running, this means: • there is insufficient brake fluid in the reservoir (engine running and parking brake released), or

Warning! Driving with the brake warning lamp illuminated can result in an accident. Have your brake system checked immediately if the brake warning lamp stays on. Don’t add brake fluid before checking the brake system. Overfilling the brake fluid reservoir can result in spilling brake fluid on hot engine parts and the brake fluid catching fire. You can be seriously burned.

Note: If you find that the minimum mark on the brake fluid reservoir is reached, have the brake system checked for brake pad thickness and leaks.

• the parking brake is set (engine running) • the electronic brake proportioning (EBP) system is

malfunctioning.

Malfunction and indicator lamps

241

Instruments and controls

Operation

Driving

Instrument cluster display

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data

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Instruments and controls

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Malfunction and indicator lamps

242

Supplemental restraint system (SRS) indicator lamp

Fuel reserve warning

SRS

The operational readiness of the airbag system is verified by the indicator lamp “SRS” in the instrument cluster when

turning the key in steering lock to position 1 or 2. If no fault is detected, the lamp will go out after approximately 5 seconds; after the lamp goes out, the system continues to monitor the components and circuitry of the airbag system and will indicate a malfunction by coming on again.

When the warning lamp (1) comes on after starting the engine, or if it comes on while driving, it indicates that the fuel level is down to the reserve quantity of approximately 3.2 gal (12 liters). See page 235 for notes on refueling the vehicle.

Warning! In the event a malfunction of the “SRS” is indicated as outlined above, the “SRS” may not be operational. For your safety, we strongly recommend that you visit an authorized Mercedes-Benz Light Truck Center immediately to have the system checked; otherwise the “SRS” may not be activated when needed in an accident, which could result in serious or fatal injury, or it might deploy unexpectedly and unnecessarily which could also result in injury.

See page 58 for notes on airbags, page 57 for belt tensioners, and page 68 for infant and child seat restraints.

Electronic stability program (ESP)/Electronic traction system (4-ETS+) — warning lamp The yellow warning lamp in the speedometer dial comes on with the key in steering lock position 2. It should go out

with engine running. See page 221 for 4-ETS+ and page 223 for ESP if the warning lamp lights up or flashes when the vehicle is moving.

BAS/ESP malfunction indicator lamp

BAS ESP

The malfunction indicator lamp for the ESP is combined with that of the BAS. The yellow BAS/ESP malfunction indicator lamp in the instrument cluster comes on with the key in steering lock position 2. It should go out with the engine running. If the BAS/ESP malfunction indicator lamp remains illuminated with the engine running, see page 217 for BAS and page 223 for ESP.

4-ETS+ malfunction indicator lamp

ETS

The yellow ETS malfunction indicator lamp in the instrument cluster comes on with the key in steering lock position 2. It should go

out with the engine running. If the ETS malfunction indicator lamp remains illuminated with the engine running a malfunction has been detected, see page 221 for 4-ETS+.

LOW RANGE indicator lamp

LOW

RANGE

The yellow LOW RANGE indicator lamp in the instrument cluster comes on with the key in steering lock position 2. With the

LOW RANGE mode deactivated it should go out with the engine running. With the LOW RANGE mode activated the LOW RANGE indicator lamp is illuminated continuously. If the indicator lamp blinks fast, one or more switching conditions were not observed, or the LOW RANGE mode is defective, see page 227 for LOW RANGE mode.

Malfunction and indicator lamps

243

Instruments and controls

Operation

Driving

Instrument cluster display

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Car care

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Instruments and controls

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Malfunction and indicator lamps

244

ABS malfunction indicator lamp

Adjustable steering wheel – indicator lamp

ABS

The ABS malfunction indicator lamp in the instrument cluster comes on with the key in steering lock position 2 and should go out

with the engine running. When the ABS malfunction indicator lamp in the instrument cluster remains illuminated while the engine is running, it indicates that the ABS has detected a malfunction and has switched off. In this case, the brake system functions in the usual manner, but without antilock assistance. With the ABS malfunctioning, the BAS, ESP and 4-ETS+ are also switched off. Both malfunction indicator lamps come on with the engine running. If the charging voltage falls below 10 volts, the malfunction indicator lamp comes on and the ABS is switched off. When the voltage is above this value again, the malfunction indicator lamp should go out and the ABS is operational. Have the system checked at your authorized Mercedes-Benz Light Truck Center as soon as possible. See page 219 for notes on antilock brake system (ABS).

The indicator lamp in the instrument cluster comes on with the key in steering lock position 2 and should go out with the engine running.

If the indicator lamp does not go out after starting the engine, the adjustable steering column is not properly locked. For locking the adjustable telescoping steering column, see page 74.

AIRBAG OFF indicator lamp

The indicator lamp will light up for approximately 6 seconds, extinguish, then blink once, when you turn the key in

steering lock to position 1 or 2. The 7 indicator lamp stays lit as long as a BabySmartTM compatible child seat is properly installed on the front passenger seat. It indicates that the front passenger airbag is switched off. See page 55 for BabySmartTM airbag and its deactivation system.

BabySmartTM is a trademark of Siemens Automotive Corp.

Seat belt warning lamp

With the key in steering lock position 2, the seat belt warning lamp comes on for a short time if the driver’s seat belt is not fastened.

After starting the engine, the warning lamp remains illuminated for a short time to remind the driver and passengers to fasten seat belts.

Charge indicator lamp

Should the charge indicator lamp fail to come on prior to starting when the key is in steering lock position 2 or should it fail to go

out after starting or during operation, this indicates a malfunction which must be repaired at an authorized Mercedes-Benz Light Truck Center immediately.

If the charge indicator lamp comes on while the engine is running, this may indicate that the poly-V-belt has broken. Should this condition occur, the poly-V-belt must be replaced before continuing to operate the vehicle. Otherwise, the engine will overheat due to an inoperative water pump which may result in damage to the engine. Do not continue to drive the vehicle with the charge indicator lamp illuminated. Doing so could result in serious engine damage that is not covered by the Mercedes-Benz Limited Warranty.

Malfunction and indicator lamps

245

Instruments and controls

Operation

Driving

Instrument cluster display

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Instruments and controls

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Malfunction and indicator lamps

246

Low engine oil level warning lamp

Low engine coolant level warning

With the key in steering lock position 2, the oil level warning lamp comes on and should go out when the engine is running.

If the warning lamp does not go out after starting the engine, or comes on with the engine running and at operating temperature, the engine oil level has dropped to approximately the minimum mark on the dipstick. When this occurs, the warning lamp will first come on intermittently and then stay on if the oil level drops further. If no oil leaks are noted, continue to drive to the nearest service station where the engine oil should be topped to the “full” mark on the dipstick with an approved oil. The low engine oil level warning light should not be ignored. Extended driving with the light illuminated could result in serious engine damage that is not covered by the Mercedes-Benz Limited Warranty. In addition to the warning lamp, the engine oil level should be periodically checked with the dipstick or via the oil level indicator in the odometer display field, for example during a fuel stop, or before a long trip (see engine oil level indicator on page 96 and checking engine oil on page 255).

When the coolant level warning lamp comes on while driving, then the coolant level has dropped below the required level, or the

coolant temperature is in the red zone. If no leaks are noticeable and the engine temperature does not increase, continue to drive to the nearest service station and have coolant added to the coolant system, see page 256. If the engine temperature reaches the red zone, move vehicle to an area which is in a safe distance from the roadway and turn off the engine. Also see coolant temperature gauge on page 87. The low engine coolant level warning should not be ignored. Extended driving with the symbol displayed may cause serious engine damage not covered by the Mercedes-Benz Limited Warranty. In cases of major or frequent minor coolant loss, have the cooling system checked at your authorized Mercedes-Benz Light Truck Center as soon as possible.

Notes: Do not drive without coolant in the cooling system. The engine will overheat causing major engine damage. Monitor the coolant temperature gauge while driving.

Low windshield and headlamp washer system fluid level warning lamp

With the key in steering lock position 2, the warning lamp comes on. It should go out when the engine is running.

If the warning lamp does not go out after starting the engine, or if it comes on while driving, there is approx. 1.3 US qt (1,25 l) washer fluid remaining the reservoir. The reservoir should be refilled with MB Windshield Washer Concentrate “S” and water (or commercially available premixed windshield washer solvent/ antifreeze, depending on ambient temperature, see page 258) at the next opportunity. The reservoir for the windshield and headlamp washer systems is located in the engine compartment.

Note: If the warning lamp comes on during subzero wether, please check the concentration of the washer fluid in the tank. If the concentration is not sufficient, the fluid may have frozen. After the fluid in the tank thaws, correct the concentration level.

Brake pad wear indicator lamp

With the key in steering lock position 2, the indicator lamp comes on and goes out when the engine is running.

If the indicator lamp lights up during braking, this indicates that the brake pads are worn down. Have the brake system checked at your authorized Mercedes-Benz Light Truck Center as soon as possible.

FSS indicator

FSS indicator (Service A), see page 94.

FSS indicator (Service B), see page 94.

The symbols appear in the main odometer display field prior to the next suggested service. Depending on operating conditions throughout the year, the next service is calculated and displayed in days or distance remaining. See page 94 for notes on the flexible service system (FSS).

Malfunction and indicator lamps

247

Instruments and controls

Operation

Driving

Instrument cluster display

Practical hints

Car care

Technical

data

Index

Practical hints

First aid kit .....................................250
Fuses ................................................250
Electrical outlet ..............................252
Stowing items in the vehicle ........252
Hood .................................................253
Checking engine oil level .............255
Automatic transmission

fluid level ...................................256
Engine oil consumption ................256
Coolant level ...................................256
Adding coolant ...........................257

Windshield washer/headlamp

cleaning system .........................258
Windshield and headlamp washer fluid mixing ratio .........259

Vehicle jack,

wheel bolt wrench and screwdriver ............................... 259
Air pump ......................................... 261
Wheels ............................................ 262
Tire replacement ....................... 262
Rotating wheels ......................... 263
Spare wheel .................................... 264
Changing wheels ........................... 267
Tire inflation pressure ................. 272
Battery ............................................. 273
Jump starting ................................. 275
Towing the vehicle ........................ 277

Transmission selector lever, manually unlocking .................. 281
Stranded vehicle ............................ 281

Exterior lamps ................................282
Headlamp assembly ...................283
Taillamp assemblies ..................287
Adjusting headlamp aim ...............290
Remote control battery

replacement ...............................292
Synchronizing remote control ............................293

Emergency operation of

sliding/pop-up roof ...................294

Manual release for

fuel filler flap .............................295
Replacing wiper blades .................295
Roof rack .........................................296

Contents - Practical hints

249

Instruments and controls

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Instrument cluster display

Practical hints

Car care

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Index

Instruments and controls

First aid kit

Operation

Driving

Instrument cluster display

Practical hints

Car care

Technical

data

Index

250

Fuses

Before replacing a blown fuse, determine the cause of the short circuit. Spare fuses and a special fuse puller are supplied inside the fuse box cover. Observe amperage and color of fuse. Always use a new fuse for replacement. Never attempt to repair or bridge a blown fuse. A fuse chart can be found inside the corresponding fuse box cover.

First aid kit

The first aid kit is located behind the cover (1) in the liftgate. To open, pull in direction of arrows and remove cover.

Fuse box in engine compartment

Auxiliary fuse box in front passenger footwell

1 Fuse box in engine compartment

To gain access to the fuse box, release clamps (arrows), lift the fuse box cover (1) up and remove it. To close the fuse box, engage back end of cover, close, and secure with clamps.

2 Auxiliary fuse box in front passenger compartment To gain access to the fuse box, turn both locks (3) 90° counterclockwise and remove cover in direction of arrow. To close the fuse box, engage back end of cover, slide the cover towards vehicle front and secure by turning both locks (3) clockwise to the stop.

Fuses

Instruments and controls

Operation

Driving

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251

Instruments and controls

Electrical outlet

Operation

Driving

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data

Index

Electrical outlet

Two electrical outlets can be found, one at the front passenger footwell, and the other in the rear compartment (always operational).

252

To open: Flip up cover and insert electrical plug (cigar lighter type).

Note: The electrical outlets can be used to accommodate accessories (e.g. air pump, auxiliary lamps) up to maximum 180 W.

Stowing items in the vehicle

Warning! To help avoid personal injury during a collision or sudden maneuver, always use partition net when transporting cargo. Always fasten items being carried as securely as possible using cargo tie- down rings and fastening materials appropriate for the weight and size of the load.

Hood

To open: To unlock the hood, pull release lever (1) under the driver’s side of the instrument panel. At the same time a handle (2) will extend out of the radiator grill (it may be necessary to lift the hood up slightly).

Caution! To avoid damage to the windshield wipers or hood, open the hood only with wipers in the parked position.

Pull handle (2) to its stop out of radiator grill and open hood (do not pull up on handle).

To close: Lower hood and let it drop into lock from a height of approximately 1 ft. (30 cm). To avoid hood damage, please make sure that hood is fully closed. If not, repeat closing procedure. Do not push down on hood to attempt to fully close it.

Engine compartment

253

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Engine compartment

254

Warning! To help prevent personal injury, stay clear of moving parts when the hood is open and the engine is running. Be sure the hood is properly closed before driving. When closing hood, use extreme caution not to catch hands or fingers. The radiator fan may continue to run for approximately 30 seconds or even restart after the engine has been turned off. Stay clear from fan blades.

The engine is equipped with a transistorized ignition system. Because of the high voltage it is dangerous to touch any components (ignition coils, spark plug sockets, diagnostic socket) of the ignition system

• with the engine running, • while starting the engine, • if ignition is “on” and the engine is turned

manually.

If you see flames, steam or smoke coming from the engine compartment, or if the coolant temperature gauge indicates that the engine is overheated, do not open the hood. Move away from vehicle and do not open the hood until the engine has cooled. If necessary, call a fire department.

Checking engine oil level

1 Oil dipstick 2 Oil filler cap

To check the engine oil level, park vehicle on level ground, with engine at normal operational temperature. Check engine oil level approximately 5 minutes after stopping the engine, allowing for the oil to return to the oil pan.

Wipe oil dipstick clean prior to checking the engine oil level. Fully insert dipstick in tube, and remove after three seconds to obtain accurate reading.

Oil level must be between the lower (min) and upper (max) mark of the dipstick.

Fill quantity between upper and lower dipstick marking, the level is approximately 2.1 US qt (2.0 l). Do not overfill the engine. Excessive oil must be drained or siphoned. It could cause damage to engine and catalytic converter not covered by the Mercedes-Benz Limited Warranty. See page 246 for low engine oil level warning.

Note: See page 96 for engine oil level indicator.

Engine compartment

255

Instruments and controls

Operation

Driving

Instrument cluster display

Practical hints

Car care

Technical

data

Index

Instruments and controls

Operation

Driving

Instrument cluster display

Practical hints

Car care

Technical

data

Index

Engine compartment

Automatic transmission fluid level The transmission has a permanent fill of automatic transmission fluid. Regular automatic transmission fluid level checks and changes are not required. For this reason the dipstick is omitted. If you notice fluid leaks or gear shifting malfunctions, have your authorized Mercedes-Benz Light Truck Center check the transmission fluid level.

Engine oil consumption Engine oil consumption checks should only be made after the break-in period. During the break-in period, higher oil consumption may be noticed and is normal. Frequent driving at high engine speeds results in increased consumption.

256

Coolant level

P20.30-0241-20

To check the coolant level, the vehicle must be parked on level ground and the engine stopped. Check coolant level only when coolant is cold. The coolant level should reach the COLD LEVEL mark in the reservoir.

Adding coolant If coolant has to be added, a 50/50 mixture of water and MB anticorrosion/antifreeze should be added. After adding coolant, close cap until you hear it click a few times. The drain plugs for the cooling system are located on the left and right side of the engine block directly above the engine mounts and at the bottom of the radiator. Anticorrosion/antifreeze mixture, see page 319.

Warning! In order to avoid possible serious burns or injury:

• Use extreme caution when opening the hood if there are any signs of steam or coolant leaking from the cooling system, or if the coolant temperature gauge indicates that the coolant is overheated.

• Do not remove pressure cap on coolant

reservoir if engine temperature is above 194°F (90°C). Allow engine to cool down before removing cap. The coolant reservoir contains hot fluid and is under pressure.

• Using a rag, slowly open cap approximately

1/2 turn to relieve excess pressure. If opened immediately, scalding hot fluid and steam will be blown out under pressure.

• Do not spill antifreeze on hot engine parts.

Antifreeze contains ethylene glycol which may burn if it comes into contact with hot engine parts.

Engine compartment

257

Instruments and controls

Operation

Driving

Instrument cluster display

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Car care

Technical

data

Index

Instruments and controls

Operation

Driving

Instrument cluster display

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Car care

Technical

data

Index

Engine compartment

258

Windshield washer/headlamp cleaning system

The reservoir should be refilled with MB Windshield washer concentrate and water (or commercially available premixed windshield washer solvent/ antifreeze, depending on ambient temperatures).

Warning! Washer solvent/antifreeze is highly flammable. Do not spill washer solvent/antifreeze on hot engine parts, because it may burn. You can be seriously burned.

1 Windshield washer/headlamp cleaning/rear window wiper/washer system fluid reservoir Capacity approximately 8.0 US qt (7.6 l).

Windshield and headlamp washer fluid mixing ratio

For temperatures above freezing: MB Windshield Washer Concentrate “S” and water 1 part “S” to 100 parts water (40 ml “S” to 1 gallon water).

For temperature below freezing: MB Windshield Washer Concentrate “S” and commercially available premixed windshield washer solvent/antifreeze 1 part “S” to 100 parts solvent (40 ml “S” to 1 gallon solvent).

Vehicle jack, wheel bolt wrench and screwdriver

Warning! The jack is designed exclusively for jacking up the vehicle at the jack take-up brackets built into either side of the vehicle. To help avoid personal injury, use the jack only to lift the vehicle during a wheel change. Never get beneath the vehicle while it is supported by the jack. Keep hands and feet away from the area under the lifted vehicle. Always firmly set parking brake and block wheels before raising vehicle with jack. Do not disengage parking brake while the vehicle is raised. Be certain that the jack is always vertical when in use, especially on hills. Always try to use the jack on level surface. Be sure that the jack arm end is fully seated in the jack take-up bracket. Always lower the vehicle onto sufficient capacity jackstands before working under the vehicle.

Windshield wiper

259

Instruments and controls

Operation

Driving

Instrument cluster display

Practical hints

Car care

Technical

data

Index

Instruments and controls

Operation

Driving

Instrument cluster display

Practical hints

Car care

Technical

data

Index

Spare wheel, vehicle jack

260

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Unscrew plastic nut (1) and lift out vehicle jack. See illustration for proper storage of jack and wheel bolt wrench.

The vehicle jack, wheel bolt wrench and screwdriver are located in the rear cargo compartment behind the cover in the right side trim panel. To get to tools, first remove trim panel cover by turning both handles to left. Vehicles with optional CD-changer: Loosen CD-changer securing screw and swing CD-changer out of the panel to gain access to jack and tool kit.

Air pump (ML 55 AMG)

2 Vehicle jack 3 Screwdriver 4 Wheel bolt wrench

The screwdriver is placed inside the wheel bolt wrench handle.

1 Air pump 2 Storage compartment

The air pump is located behind the space-saver spare wheel. The air pump is secured with a strap.

Spare wheel, vehicle jack

261

Instruments and controls

Operation

Driving

Instrument cluster display

Practical hints

Car care

Technical

data

Index

Instruments and controls

Tires, Wheels

Operation

Driving

Instrument cluster display

Practical hints

Car care

Technical

data

Index

Wheels Replace rims or tires with the same designation, manufacturer and type as shown on the original part. See your authorized Mercedes-Benz Light Truck Center for further information.

Warning! Do not mix different tire construction types (i.e. radial, bias, bias-belted) on your vehicle because handling may be adversely affected and may result in loss of control.

See your authorized Mercedes-Benz Light Truck Center for information on tested and recommended rims and tires for summer and winter operation. They can also offer advice concerning tire service and purchase.

262

Tire replacement Front and rear tires should be replaced in sets. Furthermore – in the event of tire replacement – the optional regular size spare wheel should be used on the rear axle. Rims and tires must be of the correct size and type. For dimensions, see technical data on page 310. We recommend that you break in new tires for approximately 60 miles (100 km) at moderate speed. It is imperative that the wheel mounting bolts be fastened to a tightening torque of 110 ft.lb. (150 Nm) whenever wheels are mounted. For rim and tire specifications, refer to technical data on page 310.

Warning! Worn, old tires can cause accidents. If the tire tread is badly worn, or if the tires have sustained damage, replace them. When replacing rims, use only genuine Mercedes-Benz wheel bolts specified for the particular rim type. Failure to do so can result in the bolts loosening and possibly an accident.

Rotating wheels The wheels can be rotated according to the degree of tire wear while retaining the same direction of travel. Rotating, however, should be carried out as recommended by the tire manufacturer, before the characteristic tire wear pattern (shoulder wear on front wheels and tread center wear on rear wheels) becomes visible, as otherwise the driving properties deteriorate.

Important! Unidirectional tires must always be mounted with arrow on tire sidewall pointing in direction of vehicle forward movement.

Notes: Thoroughly clean the inner side of the wheels any time you rotate the wheels or wash the vehicle underside. The use of retread tires is not recommended. Retread tires may adversely affect the handling characteristics and safety of the vehicle. Dented or bent rims can cause tire pressure loss and damage to the tire beads. For this reason, check rims for damage at regular intervals. The rim flanges must be checked for wear before a tire is mounted. Remove burrs, if any. Check and ensure proper tire inflation pressure after rotating the wheels. For tire inflation pressure see page 272.

Tires, Wheels

Instruments and controls

Operation

Driving

Instrument cluster display

Practical hints

Car care

Technical

data

Index

263

Instruments and controls

Tires, Wheels

Operation

Driving

Instrument cluster display

Practical hints

Car care

Technical

data

Index

Spare wheel In the case of a flat tire or break-down, you may temporarily use the space-saver spare wheel, while observing the following restrictions: • Do not exceed vehicle speed of 50 mph (80 km/h). • Drive to the nearest repair facility to have the flat

tire repaired or replaced as appropriate.

• Do not operate vehicle with more than one spare

wheel mounted.

For rim and tire specifications, refer to “Technical data” on page 310.

Caution! Exercise care when removing or installing spare wheel to prevent personal injury.

Warning! The dimensions of the spare wheel are different from those of the road wheels. As a result, the vehicle handling characteristics change when driving with a mounted spare wheel.

264

Space-saver tire (ML 55 AMG only)

P40.10-2441-26

Removing spare wheel (space-saver tire):

1. Open buckle of clamp, then remove cover (1). 2. Unscrew the three wheel bolts using wrench

supplied with vehicle tools, and take out space-saver spare wheel, and remove the air pump from its compartment.

Space-saver tire (except ML 55 AMG)

Important! To realize the total crumple zone in case of a rear end collision, the space-saver spare wheel must be stored in its holder with the tire deflated. Properly inflate the tire prior to mounting it on the axle. See page 271 for detailed instructions. When storing the space-saver spare wheel in its holder, tighten the three wheel bolts with a tightening torque of 37 ft.lb. (50 Nm).

P40.10-2439-26

Removing spare wheel (space-saver tire):

1. Hold left and right side of cover (1) at bottom and

pull away from bumper (arrows).

Tires, Wheels

Instruments and controls

Operation

Driving

Instrument cluster display

Practical hints

Car care

Technical

data

Index

265

Instruments and controls

Tires, Wheels

Operation

Driving

Instrument cluster display

Practical hints

Car care

Technical

data

Index

266

2. Loosen screw (2) using wrench supplied with

vehicle tools, see page 259. The screw (2) remains in the holder.

3. Lift spare wheel carrier slightly and push lever (3) to the right using screwdriver supplied with vehicle tools, swing spare wheel carrier down and pull it out from under the bumper.

4. Remove space-saver spare wheel. 5. Turn the bayonet lock clockwise to the endstop and

take off. Remove the cover and spare wheel.

P40.10-2440-26

Note: Store bayonet lock and spare wheel cover in cargo area.

Changing wheels

Warning! The jack is designed exclusively for jacking up the vehicle at the jack take-up brackets built into either side of the vehicle. To help avoid personal injury, use the jack only to lift the vehicle during a wheel change. Never get beneath the vehicle while it is supported by the jack. Keep hands and feet away from the area under the lifted vehicle. Always firmly set parking brake and block wheels before raising vehicle with jack. Do not disengage parking brake while the vehicle is raised. Be certain that the jack is always vertical when in use, especially on hills. Always try to use the jack on level surface. Be sure that the jack arm end is fully seated in the jack take-up bracket. Always lower the vehicle onto sufficient capacity jackstands before working under the vehicle.

P40.00-2034-26

Position the vehicle jack only under the take-up bracket, when raising the vehicle, so that it is always vertical (plumb-line) as seen from the side, even if the vehicle is parked on an incline.

Note: Do not place the vehicle jack under areas marked X. Serious personal injury and damage to the vehicle may occur.

Tires, Wheels

Instruments and controls

Operation

Driving

Instrument cluster display

Practical hints

Car care

Technical

data

Index

267

Instruments and controls

Tires, Wheels

Operation

Driving

Instrument cluster display

Practical hints

Car care

Technical

data

Index

268

Move vehicle to a level area which is a safe distance from the roadway.

Important! The vehicle doors lock if the left front wheel rotates with the engine running. Do not leave the engine running while changing a wheel.

1. Set parking brake and turn on hazard warning

flasher.

2. Move selector lever to position “P”, turn off the

engine, and remove key from the steering lock. Lock steering wheel with wheels in the straight ahead position.

3. Prevent vehicle from rolling away by blocking