Page 7 of 416

Contents
Practical hints.................................  287
What to do if … ..................................  288
Lamps in instrument cluster ........  288
Lamp in center console ................  295
Vehicle status messages in the 
multifunction display ....................  296
Where will I find...? ............................  321
First aid kit ...................................  321
Vehicle tool kit .............................  321
Vehicle jack..................................  322
CD changer ..................................  322
Spare wheel .................................  323
Unlocking/locking in an emergency ..  325
Unlocking the vehicle ...................  325
Locking the vehicle ......................  326
Fuel filler flap ...............................  326
Manually unlocking the 
transmission gear selector lever ..  327
Opening/closing in an emergency.....  328
Tilt/sliding sunroof ......................  328Brush guard* ...................................... 329
Lowering and raising brush 
guard ............................................ 330
Replacing SmartKey batteries ............ 331
SmartKey ...................................... 332
Replacing bulbs .................................. 333
Bulbs ............................................. 333
Replacing bulbs for front lamps .... 335
Replacing bulbs for rear lamps ..... 341
Replacing wiper blades....................... 344
Removing wiper blades ................. 344
Installing wiper blades .................. 345
Flat tire ............................................... 346
Preparing the vehicle .................... 346
Mounting the spare wheel ............ 347
Battery................................................ 351
Charging the battery ..................... 351
Disconnecting the battery............. 352
Reconnecting the battery.............. 353
Jump starting ...................................... 354Towing the vehicle..............................  356
Transporting the vehicle ...............  358
Towing the vehicle - various 
problem scenarios ........................  358
Front towing eye ...........................  359
Rear towing eye ............................  359
Freeing a stranded vehicle............  359
Fuses..................................................  360
Fuse box in passenger 
compartment ................................  360
Fuse box in battery box ................ 360
Fuse box in front passenger 
footwell .........................................  361
Fuse box in middle tunnel .............  362 
     
        
        Page 237 of 416

237 Operation
At the gas station
G55AMG1Coolant
2Brake fluidCoolant
For normal replenishing, use water (pota-
ble water quality). For more information, 
see “Coolant level” (
page 244) and see 
“Fuels, coolants, lubricants, etc.” 
(
page 374).
Brake fluidEngine oil level
For more information on engine oil, see 
“Engine oil” (
page 239).
Tire inflation pressure
For more information, see “Checking tire 
inflation pressure” (
page 259).
Vehicle lighting
Check function and cleanliness. For infor-
mation on replacing light bulbs, see “Re-
placing bulbs” (
page 333).
For more information, see “Exterior lamp 
switch” (
page 110).
Windshield/rear window washer sys-
tem and headlamp cleaning system
For more information on refilling the reser-
voir, see “Windshield/rear window washer 
system and headlamp cleaning system” 
(
page 245).
iOpening the hood, see (
page 238).
!If you find that the brake fluid in the 
brake fluid reservoir has fallen to the 
minimum mark or below, have the 
brake system checked for brake pad 
thickness and leaks immediately. Noti-
fy an authorized Mercedes-Benz Light 
Truck Center immediately. Do not add 
brake fluid as this will not solve the 
problem. For more information, see 
“Practical hints” (
page 290). 
     
        
        Page 287 of 416
287 Practical hints
What to do if …
Where will I find...?
Unlocking/locking in an emergency
Opening/closing in an emergency
Brush guard*
Replacing SmartKey batteries
Replacing bulbs
Replacing wiper blades
Flat tire
Battery
Jump starting
Towing the vehicle
Fuses 
     
        
        Page 288 of 416

288 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 ignition, 
have the respective bulb checked and re-
placed if necessary.Problem
Possible cause
Suggested solution
-
The yellow ABS indicator lamp 
comes on while driving.
You engaged the differential locks. The ABS, 
ESP, BAS, EBB and 4-ETS are switched off. 
The driving systems will switch on 
again after the differential locks have 
been disengaged. 
The ABS has detected a malfunction and has 
switched off. The ESP, BAS, EBB and 4-ETS 
are also switched off (see messages in dis-
play).
If the ABS control unit is malfunctioning, oth-
er systems such as the navigation system or 
Rear Parking Assist* may also malfunction. 
The brake system is still functioning normally 
but without the ABS available.
Continue driving with added caution. 
Wheels will lock during hard braking 
reducing steering capability. 
Have the system checked at an autho-
rized Mercedes-Benz Light Truck 
Center as soon as possible.
Failure to follow these instructions in-
creases the risk of an accident. 
     
        
        Page 313 of 416

313 Practical hints
What to do if …
Display symbol
Display message
Possible cause
Possible solution
. 
BRAKE LIGHT, R
CHECK LIGHT!
 
The right brake lamp is malfunctioning.
Visit an authorized Mercedes-Benz 
Light Truck Center as soon as 
possible.
FRONT FOGLIGHT, L
CHECK LIGHT!
 
The left front fog lamp is malfunctioning.
Replace the bulb as soon as possible.
FRONT FOGLIGHT, R
CHECK LIGHT!
 
The right front fog lamp is malfunctioning.
Replace the bulb as soon as possible.
FR. L. PARK. LAMP
CHECK LIGHT!
 
BACK-UP LIGHT ON!
 
The left parking lamps are malfunction-
ing. A backup bulb is being used.
Replace the bulb as soon as possible.
FR. R. PARK LAMP
CHECK LIGHT!
BACK-UP LIGHT ON!
The right parking lamps are malfunction-
ing. A backup bulb is being used.
Replace the bulb as soon as possible.
HIGH BEAM, L
CHECK LIGHT!
 
The left high beam lamp is malfunction-
ing.
Replace the bulb as soon as possible.
HIGH BEAM, R
CHECK LIGHT!
 
The right high beam lamp is malfunction-
ing.
Replace the bulb as soon as possible. 
     
        
        Page 314 of 416

314 Practical hintsWhat to do if …Display symbol
Display message
Possible cause
Possible solution
. 
LIGHT SENSOR
DRIVE TO WORKSHOP!
The lamp sensor is malfunctioning. The 
headlamps switch on automatically.
In the control system, set lamp opera-
tion to manual (
page 137).
Switch on headlamps using the 
exterior lamp switch (
page 110).
Visit an authorized Mercedes-Benz 
Light Truck Center as soon as possi-
ble.
LICENSE PLATE LIGHT, L
CHECK LIGHT!
 
The left license plate lamp is malfunction-
ing.
Replace the bulb as soon as possible.
LICENSE PLATE LIGHT R
CHECK LIGHT!
 
The right license plate lamp is malfunc-
tioning.
Replace the bulb as soon as possible.
LIGHTS
TURN OFF LIGHTS!
The display appears if the driver’s door is 
opened with the engine shut off and no 
SmartKey in the starter switch.
Insert SmartKey in the starter switch.
Switch off the lights (
page 110).
LOW BEAM, L
CHECK LIGHT!
The left low beam lamp is malfunctioning.
Visit an authorized Mercedes-Benz 
Light Truck Center as soon as 
possible.
LOW BEAM, R
CHECK LIGHT!
The right low beam lamp is malfunction-
ing.
Visit an authorized Mercedes-Benz 
Light Truck Center as soon as 
possible. 
     
        
        Page 315 of 416

315 Practical hints
What to do if …
Display symbol
Display message
Possible cause
Possible solution
. 
MARKER LIGHT, FL
CHECK LIGHT!
 
The left front side marker lamp is mal-
functioning.
Replace the bulb as soon as possible.
MARKER LIGHT, FR
CHECK LIGHT!
 
The right front side marker lamp is mal-
functioning.
Replace the bulb as soon as possible.
REAR FOGLIGHT
CHECK LIGHT!
 
The rear fog lamp is malfunctioning. 
Replace the bulb as soon as possible.
REAR FOGLIGHT
TURN OFF
 
BACK-UP LIGHT ON!
A lamp is malfunctioning. A backup bulb 
is being used.
Turn the rear fog lamp off.
REVERSE LIGHT, R
CHECK LIGHT!
 
The right backup lamp is malfunctioning.
Replace the bulb as soon as possible.
TAIL LIGHT, L
CHECK LIGHT!
 
BACK-UP LIGHT ON!
 
The left tail lamp is malfunctioning. 
A backup bulb is being used.
Replace the bulb as soon as possible.
TAIL LIGHT, R
CHECK LIGHT!
 
BACK-UP LIGHT ON!
 
The right tail lamp is malfunctioning. 
A backup bulb is being used.
Replace the bulb as soon as possible.
TURN SIG., LF
CHECK LIGHT!
BACK-UP LIGHT ON!
The left front turn signal lamp is malfunc-
tioning. A backup bulb is being used.
Replace the bulb as soon as possible. 
     
        
        Page 316 of 416

316 Practical hintsWhat to do if …Display symbol
Display message
Possible cause
Possible solution
. 
TURN SIG., RF
CHECK LIGHT
!
BACK-UP LIGHT ON!
The right front turn signal lamp is mal-
functioning. A backup bulb is being 
used.
Replace the bulb as soon as 
possible.
TURN SIG., LR
CHECK LIGHT
!
BACK-UP LIGHT ON!
The left rear turn signal lamp is malfunc-
tioning. A backup bulb is being used.
Replace the bulb as soon as 
possible.
TURN SIG., RR
CHECK LIGHT!
BACK-UP LIGHT ON!
The right rear turn signal lamp is mal-
functioning. A backup bulb is being 
used.
Replace the bulb as soon as 
possible.
VISIT WORKSHOP!
DISPLAY MALFUNCTION
The display for the lamps or the system 
is malfunctioning.
Visit an authorized Mercedes-Benz 
Light Truck Center as soon as 
possible.
TURN SIG. MIRROR, L
CHECK LIGHT!
The left turn signal in the side mirror is 
malfunctioning. This message will only 
appear if all light emitting diodes have 
stopped working.
Visit an authorized Mercedes-Benz 
Light Truck Center as soon as 
possible.
TURN SIG. MIRROR, L
CHECK LIGHT!
The right turn signal in the side mirror is 
malfunctioning. This message will only 
appear if all light emitting diodes have 
stopped working.
Visit an authorized Mercedes-Benz 
Light Truck Center as soon as 
possible.