
5 ContentsChanging wheels  ...........................340
Tire inflation pressure  ..................345
Battery .............................................346
Jump starting  ..................................349
Towing the vehicle ......................... 351
Exterior lamps  ................................354
Headlamp assembly ...................355
Taillamp assemblies  ..................358
Standby bulb function ................... 361
Changing batteries 
in the electronic main key .......363
Synchronizing
remote control  ............................365
Changing batteries
in the KEYLESS-GO-card  .........366
Emergency engine
shut-down ...................................368
Fuel filler flap, 
manual release  ..........................368Emergency operation of
sliding/pop-up roof  .................. 369
Replacing wiper blades  ................ 370
Trunk lamp ......................................371
Roof rack  ......................................... 372
Vehicle careCleaning and care
of the vehicle  ..............................374
Power washer  ............................. 375
Tar stains  .....................................376
Paintwork, painted body 
components .................................376
Engine cleaning  ..........................376
Vehicle washing  ..........................376
Ornamental moldings  ............... 377
Headlamps, taillamps, 
turn signal lenses  ...................... 377Cleaning the Distronic 
system sensor  .............................378
Cleaning the parktronic 
system sensors  ...........................378
Wiper blades  ...............................379
Light alloy wheels  ......................380
Instrument cluster  ..................... 381
Steering wheel and 
gear selector lever ...................... 381
Cup holder ................................... 381
Seat belts  .....................................382
Headliner and shelf
below rear window .....................382
Leather upholstery .....................382
Hard plastic trim items  .............382
Plastic and rubber parts ............382 

27 Contents - Operation
Te ch n ica l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index CD player  ..................................... 126
Cassette player  ........................... 127
Telephone ........................................ 128
Telephone book  .......................... 128
Redialing ..................................... 130
Incoming call  .............................. 131
Navigation system .......................... 132
Distronic (DTR) ............................... 133
Trip computer  ................................. 134
Malfunction/warning
message memory  ...................... 136
Individual settings ......................... 138
Setting the audio volume .............. 146
Flexible service system
(FSS) ............................................ 147
Tire inflation
pressure monitor  ...................... 150
Engine oil level indicator .............. 154
Engine oil consumption  ................ 155
Exterior lamp switch  ..................... 156
Headlamp mode  ............................. 157Night security illumination  ..........158
Headlamp cleaning system  ...........159
Combination switch  .......................160
Hazard warning flasher
switch ..........................................163
Automatic climate control .............164
Display and controls  ..................166
Dust filter  .....................................167
Basic setting  ................................168
Special settings  ...........................169
Air recirculation  ......................... 171
Activated charcoal filter  ........... 172
Economy mode  ........................... 173
Residual engine heat 
utilization .....................................174
Switching the automatic 
climate control on and off  ........ 175
Front center console storage 
compartment ventilation  .......... 175
Rear window defroster  .................. 176
Rear passenger compartment 
adjustable air outlets  ............... 177Power windows ............................... 178
Sliding/pop-up roof  ....................... 181
Interior lighting  ............................. 184
Rear window sunshade  ................. 186
Sun visors  ....................................... 187
Vanity mirrors  ................................ 187
Interior ............................................ 188
Storage compartments
and armrests .............................. 188
Glove box  ..................................... 189
Coat hooks  ...................................... 192
Cup holder  ...................................... 193
Ashtrays .......................................... 196
Lighter ............................................. 198
Parcel net in trunk  ........................ 199
Cargo tie-down hooks ....................200
Parcel net in front
passenger footwell  ....................200
Telephone, general  ........................ 201
Garage door opener  .......................202
Infrared reflecting windshield  ....206 

55 Central locking system
Te ch n ica l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Vehicles without trunk lid opening/closing system:
Lower trunk lid using handle (1) and close it with hands 
placed flat on trunk lid. Please remember to keep your 
fingers out of the space between the lid and the vehicle.Vehicles with trunk lid opening/closing system:
Press trunk lid button (2) briefly. The trunk lid closes 
automatically.
The trunk lid can also be closed with the trunk lid 
opening/closing switch located on the driver’s door, see 
page 58.
P88.50-2127-26
P54.25-2392-26
2 

56 Central locking system
Te ch n ica l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
Notes:
The automatic closing process is interrupted if the 
trunk lid is pushed against an object. The trunk lid will 
reverse slightly and stop. In its final closing stage the 
hydraulic power closing assist mechanism releases the 
trunk lid which then drops into the lock by its own 
weight. Now the trunk lid will stop but not reverse 
slightly. 
Investigate and correct the cause of interruption.
Now press trunk lid close button (2) again to close the 
trunk lid.In case of a malfunction the trunk lid can be opened and 
closed manually.
To open, unlock trunk lid with the mechanical key and 
open lid by hand, see page 53.
To close, lower trunk lid with hands placed flat on trunk 
lid. Please remember to keep your fingers out of the 
space between the lid and the vehicle.
Vehicles with KEYLESS-GO:
To prevent a possible inadvertent lockout, the trunk lid 
will open automatically if a KEYLESS-GO-card is 
recognized in the area of the rear shelf or inside the 
trunk.
Wa r n i n g !
To prevent possible personal injury, always keep 
hands and fingers away from the trunk opening 
when closing the trunk lid. Be especially careful 
when small children are around.Always be sure persons who might get injured are 
away from the trunk area when you operate the 
trunk lid closing button located on the vehicle door.To interrupt the hydraulic power closing assist 
mechanism press trunk lid close button (2) inside 
the trunk lid, push in trunk lid lock, or press 
buttonŠ on the electronic main key. 

59 Central locking system
Te ch n ica l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Notes:
The automatic closing process is interrupted, if the 
trunk lid is pushed against an object. The trunk lid will 
reverse slightly and stop. In its final closing stage the 
hydraulic power closing assist mechanism releases the 
trunk lid which then drops into the lock by its own 
weight. Now the trunk lid will stop but not reverse 
slightly.
Investigate and correct the cause of interruption.
Now press trunk lid opening/closing switch again to 
close the trunk lid.
In case of a malfunction the trunk lid can be opened and 
closed manually.
To open, unlock trunk lid with the mechanical key and 
open lid by hand, see page 53.
To close, lower trunk lid with hands placed flat on trunk 
lid. Please remember to keep your fingers out of the 
space between the lid and the vehicle.The trunk can also be opened by using the remote 
control. PressŠ button.
The trunk lid cannot be opened by the switch or the 
remote control when previously locked separately with 
the mechanical key. To open, see page 53.
The trunk lid cannot be opened with the trunk lid 
opening/closing switch when the vehicle was 
previously locked with the central locking switch. To 
unlock vehicle with the central locking switch, see 
page 50.
Vehicles with KEYLESS-GO:
To prevent a possible inadvertent lockout, the trunk lid 
will open automatically if a KEYLESS-GO-card is 
recognized in the area of rear shelf or inside the trunk. 

151 Tire inflation pressure monitor
Te ch n ica l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Notes:
Following a tire inflation pressure reactivation process 
the real tire inflation pressures are displayed only after 
a few minutes travel time.
Possible differences between readings of a tire pressure 
gauge of an air hose, e.g. gas station equipment, and the 
vehicle’s multifunction display can occur. The vehicle’s 
multifunction display of the tire inflation pressure 
monitor is a more precise reading.Activation of tire inflation pressure monitor
Activation of tire inflation pressure monitor is 
necessary if tire inf lation pressure is being changed, 
wheels or tires are replaced, or new wheels are installed 
on the vehicle. 
Tire inf lation pressure should be checked and corrected 
according to the label affixed inside the fuel filler flap. 
For a detailed description, refer to page 345.
Turn electronic key in starter switch to position 2 (the 
engine must not be running).
Notes:
When checking the tire inflation pressure of the road 
wheels, also check the spare tire. 
The tire inflation pressure of the spare wheel, mounted 
or not mounted, is not monitored by the tire inflation 
pressure monitor.
See page 335 for location of the spare wheel, and 
page 345 for tire inflation pressure. 

313 Malfunction and warning messages
Te ch n ica l
data Instruments 
and controlsOperation DrivingInstrument 
cluster displayPractical hints Car care Index
* C = Category, see page 297.
RL: rear left; FL: front left;
RR: rear right; FR: front right;
1 One or more tires def late rapidly or tire pressure is already below 
minimum value. Carefully bring the vehicle to a halt, avoiding 
abrupt steering and braking maneuvers. For reference on changing 
wheels, see page 337.
2 The tire pressure on one or more tires is already below minimum 
value. Carefully bring the vehicle to a halt, avoiding abrupt 
steering and braking maneuvers. For reference on changing 
wheels, see page 337.
3 For tire inflation pressure monitor, see page 150.4 Tire pressure in one or more tires is low. Check and correct tire 
pressure, see page 345.
5 The tire pressure monitor cannot be activated with the engine 
running. Turn off the engine and repeat activation, see page 151.
6 When the message appears after starting the engine, the tire 
inflation pressure on all road wheels should be checked and 
corrected according to the label affixed inside the fuel filler flap. 
For tire inflation pressure, see page 345.
The tire inflation pressure monitor must be activated again after 
the tire inflation pressure has been corrected, see page 151.
7 The tire inflation pressure monitor system is unable to monitor the 
tire pressure due to the presence of several wheel electronics in 
the vehicle (e.g. a deflated road wheel in the trunk), or nearby 
radio interference source, or excessive wheel sensor temperatures, 
or unrecognized wheel sensors mounted.
8 The tire inflation pressure monitor is defective or a wheel without 
proper sensor was installed. Visit your authorized Mercedes-Benz 
Center.Wa r n i n g !
Do not drive with a flat tire. A flat tire affects the 
ability to steer or brake the vehicle. You may lose 
control of the vehicle. Continued driving with a flat 
tire will cause excessive heat build-up and possibly 
a fire. 

323 Contents - Practical hints
Te ch n ica l
data Instruments 
and controlsOperation DrivingInstrument 
cluster displayPractical hintsCar care Index
Practical hintsFirst aid kit  .....................................324
Fuses ................................................325
Shelf below rear window  ..............327
Hood .................................................328
Checking engine oil level  ............. 331
Automatic transmission 
fluid level  ...................................332
Active body control 
(ABC) fluid level ........................332
Coolant level  ...................................333
Adding coolant  ...........................333
Windshield and headlamp
washer system  ...........................334Windshield and headlamp 
washer fluid mixing ratio  ........ 334
Spare wheel, vehicle tools, 
storage compartment  ............... 335
Jack .................................................. 336
Wheels ............................................ 337
Tire Replacement ....................... 337
Rotating wheels  ......................... 338
Spare wheel .................................... 338
Changing wheels  ........................... 340
Tire inflation pressure  ................. 345
Battery ............................................. 346
Jump starting  ................................. 349
Towing the vehicle  ........................ 351Exterior lamps  ................................354
Headlamp assembly ...................355
Taillamp assemblies  ..................358
Standby bulb function ................... 361
Changing batteries 
in the electronic main key  ......363
Synchronizing
remote control  ............................365
Changing batteries
in the KEYLESS-GO-card  .........366
Emergency engine
shut-down ..................................368
Fuel filler flap, 
manual release  ..........................368
Emergency operation of
sliding/pop-up roof  ...................369
Replacing wiper blades .................370
Trunk lamp  ..................................... 371
Roof rack  .........................................372