Page 9 of 539

Contents
Replacing bulbs ................................. 443
Bulbs ............................................ 443
Replacing bulbs for front lamps ... 445
Replacing bulbs for rear lamps..... 450
Adjusting headlamp aim............... 451
Replacing wiper blades ...................... 453
Removing front wiper blades........ 453
Installing front wiper blades ......... 453
Removing rear wiper blade........... 454
Installing rear wiper blade ............ 455
Flat tire .............................................. 456
Preparing the vehicle ................... 456
Mounting the spare wheel............ 457
Battery ............................................... 462
Disconnecting, removing,
reinstalling and
reconnecting the battery.............. 464
Charging the battery .................... 469
Jump starting ..................................... 470
Towing the vehicle ............................. 472
Installing towing eye bolt ............. 474
Stranded vehicle .......................... 476Fuses .................................................. 477
Aids for changing fuses................. 478
Main fuse box ............................... 478
Fuse box in
cargo compartment ...................... 479
Fuse box in
passenger compartment ............... 479
Technical data.................................. 481
Parts service....................................... 482
Warranty coverage ............................. 483
Loss of Service and Warranty
Information Booklet ...................... 483
Identification labels ............................ 484
Layout of poly-V-belt drive .................. 485
ML 350 ......................................... 485
ML 500 ......................................... 485
Engine ................................................ 486
Rims and tires .................................... 487
Rims and tires ............................... 488
Minispare wheel............................ 489Electrical system ................................ 490
Main Dimensions................................ 491
Weights .............................................. 492
Fuels, coolants, lubricants, etc. .......... 493
Capacities ..................................... 493
Engine oils .................................... 495
Engine oil additives ....................... 495
Air conditioning refrigerant ........... 495
Brake fluid .................................... 495
Premium unleaded gasoline.......... 496
Fuel requirements......................... 496
Gasoline additives......................... 497
Coolants ....................................... 497
Windshield washer and
headlamp cleaning* system ......... 500
Windshield and headlamp
washer fluid mixing ratio............... 500
Technical terms............................... 501Index................................................. 507
Page 326 of 539
325 Operation
At the gas station
Windshield/rear window washer
system and headlamp cleaning
system*
For more information on refilling the wash-
er reservoir, see “Windshield/rear window
washer system and headlamp cleaning
system*” (
page 333).
Vehicle lighting
Check function and cleanliness. For infor-
mation on replacing light bulbs, see “Re-
placing bulbs” (page 443).
For more information, see “Exterior lamp
switch” (
page 138).
Tire inflation pressure
For more information, see “Checking tire
inflation pressure” (
page 347).
Page 382 of 539
381 Practical hints
What to do if …
Where will I find ...?
Unlocking/locking in an emergency
Opening/closing in an emergency
Replacing SmartKey batteries
Replacing bulbs
Replacing wiper blades
Flat tire
Battery
Jump starting
Towing the vehicle
Fuses
Page 383 of 539

382 Practical hintsWhat to do if …Lamps in instrument clusterGeneral information:
If any of the following lamps in the instru-
ment cluster fails to come on during thebulb self-check when switching on the igni-
tion, have the respective bulb checked and
replaced if necessary.Problem
Possible cause
Suggested solution
-
The yellow ABS indicator lamp
comes on while the engine is
running.
ABS has detected a malfunction and has
switched off. The BAS, ESP
®, and 4-ETS are
also switched off (see messages in multifunc-
tion display).
The brake system is still functioning normally
but without the ABS available.
If the ABS control unit is malfunctioning,
other systems such as the navigation
system* or the automatic transmission may
also be malfunctioning.
Continue driving with added caution.
Wheels may lock during hard braking,
reducing steering capability.
Read and observe messages in the
multifunction display (
page 395).
Have the system checked at an
authorized Mercedes-Benz Light
Truck Center as soon as possible.
Failure to follow these instructions
increases the risk of an accident.
The charging voltage has fallen below
ten volts. The ABS has switched off.
The battery might not be charged sufficiently.
Switch off electrical consumers that
are currently not needed, e.g. seat
heating*.
If necessary, have the generator
(alternator) and the battery checked.
When the voltage is above this value
again, the ABS is operational again.
Page 419 of 539

418 Practical hintsWhat to do if …Display symbol
Display messages
Possible cause
Possible solution
.
3rd brake lamp
The high mounted brake lamp is
malfunctioning. This message
will only appear if all light emit-
ting diodes have stopped work-
ing.
Visit an authorized Mercedes-Benz Light
Truck Center as soon as possible.
Brake lamp, left
Substitute bulb on
The left brake lamp is malfunc-
tioning. A substitute bulb is be-
ing used.
Visit an authorized Mercedes-Benz Light
Truck Center as soon as possible.
Brake lamp, right
Substitute bulb on
The right brake lamp is malfunc-
tioning. A substitute bulb is be-
ing used.
Visit an authorized Mercedes-Benz Light
Truck Center as soon as possible.
Display malfunction
Visit workshop
The display for the lamps or the
system is malfunctioning.
Visit an authorized Mercedes-Benz Light
Truck Center as soon as possible.
Front foglamp,
left
The left front fog lamp is mal-
functioning.
Replace the bulb as soon as possible.
Front foglamp,
right
The right front fog lamp is mal-
functioning.
Replace the bulb as soon as possible.
Rear foglamp,
left
The left rear fog lamp is malfunc-
tioning.
Replace the bulb as soon as possible.
Rear foglamp,
right
The right rear fog lamp is mal-
functioning.
Replace the bulb as soon as possible.
Page 420 of 539

419 Practical hints
What to do if …
Display symbol
Display messages
Possible cause
Possible solution
.
Active headlamp
currently unavailable
The active Bi-Xenon* headlamps
system is malfunctioning.
Visit an authorized Mercedes-Benz Light
Truck Center as soon as possible.
Active headlamps
Substitute bulb on
The active Bi-Xenon* headlamps
system is malfunctioning. An-
other light is being used.
Visit an authorized Mercedes-Benz Light
Truck Center as soon as possible.
Active headlamps
inoperative
The active Bi-Xenon* headlamps
system is malfunctioning.
Visit an authorized Mercedes-Benz Light
Truck Center as soon as possible.
Active headlamp
s
Display malfunction
The active Bi-Xenon* headlamp
system is malfunctioning.
Visit an authorized Mercedes-Benz Light
Truck Center as soon as possible.
High beam,
left
The left high beam lamp is mal-
functioning.
Replace the bulb as soon as possible.
High beam,
right
The right high beam lamp is mal-
functioning.
Replace the bulb as soon as possible.
License plate lamp,
left
The left license plate lamp is
malfunctioning.
Replace the bulb as soon as possible.
License plate lamp,
right
The right license plate lamp is
malfunctioning.
Replace the bulb as soon as possible.
Page 421 of 539

420 Practical hintsWhat to do if …Display symbol
Display messages
Possible cause
Possible solution
.
Light sensor
Drive to workshop
The lamp sensor is malfunction-
ing. The headlamps switch on
automatically.
In the control system, set lamp operation
to manual mode.
Switch on headlamps using the exterior
lamp switch.
Low beam,
left
The left low beam lamp is mal-
functioning.
Visit an authorized Mercedes-Benz Light
Truck Center as soon as possible.
Low beam,
right
The right low beam lamp is mal-
functioning.
Visit an authorized Mercedes-Benz Light
Truck Center as soon as possible.
Marker lamp
,
front left
The front left side marker lamp is
malfunctioning.
Replace the bulb as soon as possible.
Marker lamp
,
front right
The front right side marker lamp
is malfunctioning.
Replace the bulb as soon as possible.
Parking lamp, front left
Substitute bulb on
The left parking lamps are mal-
functioning. A substitute bulb is
being used.
Visit an authorized Mercedes-Benz Light
Truck Center as soon as possible.
Parking lamp, front right
Substitute bulb on
The right parking lamps are mal-
functioning. A substitute bulb is
being used.
Visit an authorized Mercedes-Benz Light
Truck Center as soon as possible.
Page 422 of 539
421 Practical hints
What to do if …
Display symbol
Display messages
Possible cause
Possible solution
.
Reverse lamp,
left
The left reverse light is malfunc-
tioning.
Replace the bulb as soon as possible.
Reverse lamp,
right
The right reverse light is mal-
functioning.
Replace the bulb as soon as possible.
Switch off lights
Lamps have been turned on al-
though the SmartKey in the
starter switch is in position0.
Switch off the headlights.
Tail lamp, left
Substitute bulb on
The left tail lamp is malfunction-
ing. A substitute bulb is being
used.
Visit an authorized Mercedes-Benz Light
Truck Center as soon as possible.
Tail lamp, right
Substitute bulb on
The right tail lamp is malfunc-
tioning. A substitute bulb is be-
ing used.
Visit an authorized Mercedes-Benz Light
Truck Center as soon as possible.