Page 7 of 440

Contents
Maintenance...................................... 296
Clearing the service indicator ...... 296
Service term exceeded ................ 296
Calling up the service indicator .... 297
Resetting the service indicator..... 297
Vehicle care ....................................... 298
Cleaning and care of vehicle ........ 298
Practical hints.................................. 305
What to do if …? ................................. 306
Lamps in instrument cluster ......... 306
Lamp in center console................. 313
Messages in the display ................ 314
Where will I find...? ............................. 337
First aid kit.................................... 337
Vehicle tool kit .............................. 337
Minispare wheel............................ 340
Unlocking/locking in an emergency... 343
Unlocking the vehicle.................... 343
Locking the vehicle ....................... 344
Changing batteries in
the SmartKey/ SmartKey
with KEYLESS-GO* ....................... 345
Fuel filler flap ................................ 347
Manually unlocking
the gear selector lever .................. 347
Opening/closing in an emergency ..... 348
Sliding/pop-up roof* .................... 348Replacing bulbs .................................. 350
Bulbs............................................. 350
Replacing bulbs for front lamps .... 352
Side marker lamp bulb.................. 355
Replacing bulbs for rear lamps ..... 356
Replacing wiper blades ...................... 357
Removing wiper blades ................. 357
Installing wiper blades .................. 357
Flat tire............................................... 358
Preparing the vehicle .................... 358
Mounting the Minispare wheel...... 358
Battery ............................................... 363
Disconnecting the battery ............ 364
Removing the battery ................... 364
Charging and reinstalling battery .. 364
Reconnecting the battery ............. 365
Jump starting...................................... 366
Towing the vehicle.............................. 368
Towing the vehicle ........................ 368
Installing towing eye bolt .............. 370
Fuses.................................................. 372
Fuse box in
passenger compartment ............... 372
Fuse box in engine compartment . 373
Auxiliary fuse box in trunk ............ 374
Page 280 of 440

280 OperationAt the gas stationCheck regularly and before a long trip
1Coolant level
More information on coolant can be
found in the “Operation” section on
(
page 286).
2Brake fluid (fuse box cover removed)
Removing fuse box cover (
page 373)
3Windshield washer and headlamp
cleaning system
More information on refilling the reser-
voir can be found in the “Operation”
section on (
page 289).Engine oil level
More information on engine oil
(
page 283).
Opening hood (
page 281).
Vehicle lighting
Check function and cleanliness.For more
information on replacing light bulbs, see
“Replacing bulbs” (page 350).
Exterior lamp switch (page 47)
Tire inflation pressure
More information on tire inflate pressure
(
page 292).
!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 Center
immediately. Do not add brake fluid as
this will not solve the problem. For
more information, see also “Practical
hints” (
page 307).
Page 305 of 440
305 Practical hints
What to do if …?
Where will I find...?
Unlocking/locking in an emergency
Opening/closing in an emergency
Replacing bulbs
Replacing wiper blades
Flat tire
Battery
Jump starting
Towing the vehicle
Fuses
Page 306 of 440

306 Practical hintsWhat to do if …?
What to do if …?Lamps in instrument clusterGeneral information:
If a bulb in the instrument cluster fails to
come on during the bulb self-check when turning the SmartKey in the starter switch
to position2, have it checked and replaced
if necessary.Problem
Possible cause
Suggested solution
-
The yellow ABS malfunction
indicator lamp comes on while
driving.
The ABS has detected a malfunction and has
switched off. The BAS and the ESP are also
switched off (see messages in display).
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 Center as soon
as possible.
Failure to follow these instructions in-
creases the risk of an accident.
Read and observe messages in the
display (
page 314).
The charging voltage has fallen below
10 volts. The ABS has switched off.
When the voltage is above this value
again, the ABS is operational again.
If necessary, have the generator (al-
ternator) and battery checked.
Page 329 of 440

329 Practical hints
What to do if …?
Display symbol
Display message
Possible cause
Possible solution
I
Key recognized
in vehicle
A SmartKey with KEYLESS-GO* left in the
vehicle was recognized while locking the
vehicle from the outside.
Take the SmartKey out of the vehicle.
Keyless Go
Check system
The KEYLESS-GO* system is malfunction-
ing.
Visit an authorized Mercedes-Benz
Center as soon as possible.
Key
do not forget key
This display appears (for a maximum of
60 seconds) if the driver’s door is opened
with the engine shut off and no SmartKey
in the starter switch.
Message is only a reminder.
Insert SmartKey in the starter switch.
Take the SmartKey with
KEYLESS-GO* with you when leaving
the vehicle.
.
3rd stop lamp
The high mounted brake lamp is malfunc-
tioning.
Visit an authorized Mercedes-Benz
Center as soon as possible.
Back- up lamp, left
The left backup lamp is malfunctioning.
Replace the bulb as soon as possible.
Back- up lamp, right
The right backup lamp is malfunctioning.
Replace the bulb as soon as possible.
Display defective!
Visit workshop!
The display for the lamps or the system is
malfunctioning.
Visit an authorized Mercedes-Benz
Center as soon as possible.
Front foglamp, left
The left front fog lamp is malfunctioning.
Replace the bulb as soon as possible.
Front foglamp, right
The right front fog lamp is malfunctioning.
Replace the bulb as soon as possible.
Page 330 of 440

330 Practical hintsWhat to do if …?Display symbol
Display message
Possible cause
Possible solution
.
High beam, left
The left high beam lamp is malfunction-
ing.
Replace the bulb as soon as possible.
High beam, right
The right high beam lamp is malfunction-
ing.
Replace the bulb as soon as possible.
Lamp sensor
Visit workshop!
The lamp sensor is malfunctioning. The
headlamps switch on automatically.
In the control system, set lamp opera-
tion to manual (
page 145).
Switch on headlamps using the exteri-
or lamp switch.
Visit an authorized Mercedes-Benz
Center as soon as possible.
License plate lamp.
left
The left license plate lamp is malfunction-
ing.
Replace the bulb as soon as possible.
License plate lamp,
right
The right license plate lamp is malfunc-
tioning.
Replace the bulb as soon as possible.
Low beam, left
The left low beam lamp is malfunctioning.
Visit an authorized Mercedes-Benz
Center as soon as possible.
Low beam, right
The right low beam lamp is malfunction-
ing.
Visit an authorized Mercedes-Benz
Center as soon as possible.
Page 331 of 440

331 Practical hints
What to do if …?
Display symbol
Display message
Possible cause
Possible solution
.
Parking lamp,
front left
Substitute lamp on
The left parking lamps are malfunctioning.
A backup bulb is being used.
Visit an authorized Mercedes-Benz
Center as soon as possible.
Parking lamp,
front right
Substitute lamp on
The right parking lamps are malfunction-
ing. A backup bulb is being used.
Visit an authorized Mercedes-Benz
Center as soon as possible.
Side marker lamp,
front left
T h e f r o n t l e f t s i d e m a r k e r l a m p i s m a l f u n c -
tioning.
Replace the bulb as soon as possible.
Side marker lamp
front right
The front right side marker lamp is mal-
functioning.
Replace the bulb as soon as possible.
Stop lamp, left
The left brake lamp is malfunctioning.
Visit an authorized Mercedes-Benz
Center as soon as possible.
Stop lamp, right
The right brake lamp is malfunctioning.
Visit an authorized Mercedes-Benz
Center as soon as possible.
Stop lamp
Visit workshop!
Stop lamp illumination is delayed or lamp
is permanently on.
Visit an authorized Mercedes-Benz
Center as soon as possible.
Tail lamp, left
Substitute lamp on!
The left tail lamp is malfunctioning. A
backup bulb is being used.
Visit an authorized Mercedes-Benz
Center as soon as possible.
Tail lamp, right
Substitute lamp on!
The right tail lamp is malfunctioning. A
backup bulb is being used.
Visit an authorized Mercedes-Benz
Center as soon as possible.
Page 332 of 440

332 Practical hintsWhat to do if …?Display symbol
Display message
Possible cause
Possible solution
.
Turn off lamps!
Lamps have been turned on although the
SmartKey in the starter switch is in posi-
tion 0.
Turn off the headlamps.
Turn signal front left
Substitute lamp on!
The left front turn signal lamp is malfunc-
tioning. A backup bulb is being used.
Replace the bulb as soon as possible.
Turn signal front right
Substitute lamp on!
The right front turn signal lamp is malfunc-
tioning. A backup bulb is being used.
Replace the bulb as soon as possible.
Turn signal in
left mirror
The left turn signal in the side mirror is
malfunctioning. This message will only ap-
pear if all light emitting diodes have
stopped working.
Have the LEDs replaced as soon as
possible.
Turn signal in
right mirror
The right turn signal in the side mirror is
malfunctioning. This message will only ap-
pear if all light emitting diodes have
stopped working.
Have the LEDs replaced as soon as
possible.
Turn signal rear left
Substitute lamp on!
The left rear turn signal lamp is malfunc-
tioning. A backup bulb is being used.
Replace the bulb as soon as possible.
Turn signal rear right
Substitute lamp on!
The right rear turn signal lamp is malfunc-
tioning. A backup bulb is being used.
Replace the bulb as soon as possible.