
4 Contents
Instrument cluster displayMalfunction and indicator 
lamps in the 
instrument cluster  ....................302
On-board diagnostic 
system ..........................................302
Check engine malfunction 
indicator lamp .............................302
Brake warning lamp  ..................304
Supplemental restraint system 
(SRS) indicator lamp ..................305
Fuel reserve warning .................305
ABS malfunction 
indicator lamp .............................306
Electronic stability program 
(ESP) — warning lamp  ...............307
Distronic (DTR) – 
warning lamp  ..............................307
Seat belt nonusage 
warning lamp  ..............................308
Malfunction and indicator 
lamp in the 
center console  ...........................308
AIRBAG OFF indicator lamp .....308Malfunction and warning 
messages in the 
multifunction display  .............. 309
DISPLAY DEFECTIVE ................. 310
BATTERY/ALTERNATOR ........... 311
ENTRANCE POSITION  ...............312
BRAKE ASSIST ............................312
BRAKE LINING WEAR ............... 313
BRAKE FLUID  ............................. 313
PARKING BRAKE ........................ 314
TRUNK OPEN  .............................. 314
ELEC. STABIL. PROG. 
(Electronic stability 
program) ...................................... 315
COOLANT 
(coolant level)  .............................. 316
COOLANT 
(coolant temperature)  ................ 317
LIGHTING SYSTEM  .................... 318
LIGHT SENSOR  .......................... 320
ACTIVE BODY CONTROL 
(ABC) ........................................... 320
TIRE PRESSURE  ........................ 322
ENGINE OIL LEVEL  ................... 324CRUISE CONTROL  .....................325
KEY ...............................................325
DOOR ...........................................326
HOOD ...........................................326
TELE AID  .....................................327
CHIP-CARD 
(KEYLESS-GO) ............................328
SELECTOR LEVER ......................329
TELEPHONE – FUNCTION  .......329
WASHER FLUID  .........................330
AIR SPRING (AirMatic)  ............. 331
DISTRONIC (DTR)  ......................332
AIR CLEANER .............................333
Practical hintsFirst aid kit  .....................................336
Stowing things in the vehicle  ......336
Fuses ................................................337
Hood .................................................339
Checking engine oil level  .............342
Automatic transmission 
fluid level  ...................................343
Active body control (ABC) 
fluid level  ...................................343 

5 ContentsCoolant level  ...................................344
Adding coolant  ...........................344
Windshield and headlamp 
washer system  ...........................345
Windshield and headlamp 
washer fluid mixing ratio  .........345
Spare wheel, vehicle tools, 
storage compartment ................346
Vehicle jack .....................................347
Wheels .............................................348
Tire Replacement  .......................348
Rotating wheels  ..........................349
Spare wheel  ....................................349
Changing wheels  ........................... 351
Tire inflation pressure  ..................356
Battery .............................................357
Jump starting  ..................................359
Towing the vehicle ......................... 361
Exterior lamps  ................................364
Headlamp assembly  ...................365
Taillamp assemblies  ..................368Changing batteries in 
the electronic key  ......................371
Synchronizing 
remote control  ............................ 373
Changing batteries in the 
KEYLESS-GO-card .....................374
Emergency engine 
shut-down ...................................376
Fuel filler flap, 
manual release  ..........................376
Emergency operation of 
sliding/pop-up roof  .................. 377
Replacing wiper blades  ................ 378
Roof rack  ......................................... 380
Vehicle careCleaning and care 
of the vehicle  ............................. 382
Power washer  ............................. 383
Tar stains  .................................... 384
Paintwork, painted body 
components ................................ 384Engine cleaning ..........................384
Vehicle washing  .........................384
Ornamental moldings ................385
Headlamps, taillamps, 
turn signal lenses  ......................385
Cleaning the Distronic 
system sensor  .............................386
Cleaning the parktronic 
system sensors  ...........................386
Wiper blades  ...............................387
Light alloy wheels  ......................388
Instrument cluster  .....................388
Steering wheel and 
gear selector lever  ......................388
Cup holder ...................................388
Seat belts  .....................................389
Headliner and shelf 
below rear window .....................389
Leather upholstery .....................389
Hard plastic trim items  .............389
Plastic and rubber parts ............389 

92 Restraint systems
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
come on at all or if it fails to extinguish after 
approximately 4 seconds or if it comes on thereafter, a 
malfunction in the system has been detected.
The following system components are monitored or 
undergo a self-check: crash-sensor(s), airbag ignition 
circuits, front seat belt buckles, emergency tensioning 
retractors, seat sensor.
Initially, when the electronic key is turned from starter 
switch position 0 to position 1 or 2, malfunctions in the 
crash sensor are detected and indicated (the “SRS” 
indicator lamp stays on longer than 4 seconds or does 
not come on).
Have the system checked at your authorized 
Mercedes-Benz Center immediately.
In the operational mode, after the indicator lamp has 
gone out following the initial check, interruptions or 
short circuits in the airbag ignition circuit and in the 
driver and front passenger seat belt buckle harnesses, 
and low voltage in the entire system are detected and 
indicated.Note:
See page 305 for information on the Supplemental 
Restraint System (SRS) indicator lamp.
The driver and passenger front airbags are designed to 
activate only in certain frontal impacts exceeding a 
preset threshold. The front passenger airbag deploys 
only if the front passenger seat is occupied and the 
7 indicator lamp on the center console is not 
illuminated.
Note:
Heavy objects on the front passenger seat can appear to 
the “SRS” to indicate the presence of an occupant in 
that seat which causes the passenger front airbag to 
deploy in a crash exceeding the appropriate threshold.
Wa r n i n g !
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 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. 

103 Rear view mirrors
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Rear view mirrors
Inside rear view mirror
Manually adjust the inside rear view mirror.
Storing inside rear view mirror positions
The inside rear view mirror positions are stored in 
memory with the seat / steering wheel / exterior rear 
view mirror positions and can be recalled when 
necessary. See page 108 for notes on the memory 
function.
Inside rear view mirror, automatic antiglare
Antiglare mode:
With the electronic key in starter switch position 2, the 
mirror reflection brightness responds to changes in 
light sensitivity.
With the gear selection lever in position “R”, or with the 
interior light switched on, the mirror brightness does 
not respond to changes in light sensitivity.Note:
The automatic antiglare function does not react, if 
incoming light is not aimed directly at sensors in the 
inside rear view mirror.
The automatic antiglare function will not react for 
example, if the rear window sun shade is in the raised 
position.
Wa r n i n g !
In the case of an accident liquid electrolyte may 
escape the mirror housing when the mirror glass 
breaks.Electrolyte has an irritating effect. Do not allow the 
liquid to come into contact with eyes, skin, 
clothing, or respiratory system. In cases it does, 
immediately flush affected area with water, and 
seek medical help if necessary. 

107 Rear view mirrors
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Driver’s side exterior rear view mirror, antiglare 
mode
Antiglare mode:
With the electronic key in starter switch position 2, the 
mirror reflection brightness responds to changes in 
light sensitivity.
With the gear selector lever in position “R”, or with the 
interior light switched on, the mirror brightness does 
not respond to changes in light sensitivity.
Note:
The automatic antiglare function does not react, if 
incoming light is not aimed directly at sensors in the 
inside rear view mirror.
The automatic antiglare function will not react for 
example, if the rear window sun shade is in the raised 
position.Important!
Electrolyte drops coming into contact with the vehicle 
paint finish can only be completely removed while in 
their liquid state, by applying plenty of water.
Wa r n i n g !
In the case of an accident liquid electrolyte may 
escape the mirror housing when the mirror glass 
breaks.Electrolyte has an irritating effect. Do not allow the 
liquid to come into contact with eyes, skin, 
clothing, or respiratory system. In cases it does, 
immediately flush affected area with water, and 
seek medical help if necessary. 

115 Instrument cluster
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Coolant temperature gauge (5)
During severe operating conditions and stop-and-go city 
traffic, the coolant temperature may rise close to the red 
marking.
The engine should not be operated with the coolant 
temperature in the red zone. Doing so may cause 
serious engine damage which is not covered by the 
Mercedes-Benz Limited Warranty.Outside temperature indicator (6)
The temperature sensor is located in the front bumper 
area. Due to its location, the sensor can be affected by 
road or engine heat during idling or slow driving. This 
means that the accuracy of the displayed temperature 
can only be verified by comparison to a thermometer 
placed next to the sensor, not by comparison to external 
displays (e.g. bank signs etc.). 
Adaption to ambient temperature takes place in steps 
and depends on the prevailing driving conditions (stop-
and-go or moderate, constant driving) and amount of 
temperature change.
Note:
The unit for the temperature indicator display can be set 
in the individual setting menu “INST. CLUSTER” – 
“TEMP. INDICATOR” on page 140.
Wa r n i n g !
• Driving when your engine is badly overheated 
can cause some fluids which may have leaked 
into the engine compartment to catch fire. You 
could be seriously burned.• Steam from an overheated engine can cause 
serious burns and can occur just by opening 
the engine hood. Stay away from the engine if 
you see or hear steam coming from it. Turn off 
the engine, get out of the vehicle and do not 
stand near the vehicle until it cools down.
Wa r n i n g !
The outside temperature indicator is not designed 
to serve as an Ice-Warning Device and is therefore 
unsuitable for that purpose. Indicated 
temperatures just above the freezing point do not 
guarantee that the road surface is free of ice. 

155 Tire inflation pressure monitor
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Notes:
To ensure proper functioning of the tire inflation 
pressure monitor, the tire inflation pressure should be 
checked and corrected according to the label affixed 
inside the fuel filler flap. For a detailed description, 
refer to page 356.
The message “REACTIVATE – TIRE PRESS. MONITOR” 
appears if the tire inflation pressure shows an increase 
of 4.4 psi (0.3 bar) or more. Reactivate the tire inflation 
pressure monitor.
The tire inflation pressure monitor only functions on 
wheels equipped with the proper electronic sensors.
Inquire at your authorized Mercedes-Benz Center about 
retrofitting other than original Mercedes-Benz wheels 
with electronic sensors.
Transporting a deflated road wheel in the vehicle, e.g. 
after having a flat, the tire inflation pressure monitor 
should only be activated once the flat tire and rim are 
removed from the vehicle.To prevent possible damage to the electronic sensors, 
have tire changes only performed at an authorized 
Mercedes-Benz Center.
For malfunction and warning messages, see page 309.
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 346 for location of the spare wheel, and 
page 356 for tire inflation pressure. 

163 Combination switch
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index 6Press switch briefly:
Single wipe without washer fluid 
(select only if windshield is wet).
Push switch past resistance point: 
Windshield washer system, windshield wipers.
See page 345 for instructions on filling the 
windshield washer reservoir.
7Windshield wipers0Off
I Intermittent wiping
One initial wipe, pauses between wipes are 
automatically controlled by a rain sensor 
monitoring the wetness of the windshield. This 
will not occur with a front door open.
Notes:
With switch in this position, one wipe occurs 
when turning the electronic key in starter switch 
from position 0. However, this might cause 
scratches on a dry windshield. Turn combination 
switch to Off position before turning the 
electronic key in starter switch from position 0.
Do not leave in intermittent setting when vehicle 
is taken to an automatic car wash or during 
windshield cleaning. Wipers will operate in 
presence of water spray at windshield, and 
wipers may be damaged as a result.
II Normal wiper speed
III Fast wiper speed
If the vehicle is standing still, the wiper will switch back 
to setting I, intermittent wiping.
P54.25-2389-26
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