
3 Contents
DrivingControl and operation of radio 
transmitters ............................... 186
The first 1 000 miles
(1 500 km)  ................................. 187
Maintenance ................................... 187
Tele Aid  ........................................... 188
Catalytic converter  ........................ 198
Emission control  ............................ 199
Steering lock  ...................................200
Starting and turning off 
the engine  ..................................202
Automatic transmission  ...............203
Parking brake  ................................. 212
Driving instructions  ...................... 213
Drive sensibly - Save Fuel  ......... 213
Drinking and Driving  ................ 213
Pedals ........................................... 213
Power assistance  ........................ 214
Brakes .......................................... 214
Driving off  ................................... 215
Parking ........................................ 216
Tires ............................................. 216Snow chains  ................................ 219
Winter driving instructions  ...... 219
Block heater ................................ 221
Standing water  ........................... 221
Passenger compartment  ........... 221
Traveling abroad  ........................ 221
Cruise control  ................................ 222
Brake assist system (BAS) ............ 225
Antilock brake system (ABS) ....... 227
Four wheel electronic traction
system (4MATIC)  ...................... 229
Electronic stability 
program (ESP) ........................... 230
Parking assist (Parktronic)  .......... 234
What you should know at the gas 
station ......................................... 239
Check regularly and before 
a long trip  .................................. 241
Instrument cluster displayMalfunction and indicator lamps in 
the instrument cluster  ............. 244
On-board diagnostic system ..... 244Check engine malfunction 
indicator lamp .............................244
Brake warning lamp  ..................245
Supplemental restraint system 
(SRS) indicator lamp ..................246
Fuel reserve and fuel cap 
placement warning  ....................246
Electronic stability program (ESP) 
— warning lamp  ..........................247
BAS / ESP malfunction indicator 
lamp ..............................................247
ABS malfunction indicator 
lamp ..............................................248
Seat belt warning lamp  .............248
Malfunction and indicator lamp in 
the center console .....................249
AIRBAG OFF indicator lamp .....249
Malfunction and warning messages 
in the multifunction display  ...250
DISPLAY DEFECTIVE  ................ 251
BATTERY / ALTERNATOR .........252
ABS-SYSTEM ...............................253
BRAKE ASSIST  ...........................253
BRAKE LINING WEAR  ..............254 

20 Instruments and controls
Te ch n i c a l
data Instruments 
and controlsOperation DrivingInstrument 
cluster displayPractical hints Car care Index
Center console 1Ashtray with lighter, see page 166
2ESP control switch, see page 232
3Power window switches, front doors, see page 154
4Power window safety switch, rear doors, 
seepage155
5Airbag Off indicator lamp, see page 249
6Power window switches, rear doors, see page 154
7Parktronic system deactivation switch, see page 238
8Mirror adjustment switch, see page 82
356
6432
1
7
8
P68.20-2258-27 

62 Restraint systems
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
Unfastening of seat belts
Push the release button (3) in the belt buckle (2).
Allow t he retractor to completely rewind t he seat belt by 
guiding the latch plate (1).
Operation
The inertia reel stops the belt from unwinding during 
sudden vehicle stops or when quickly pulling on the 
belt. The locking function of the reel may be checked by 
quickly pulling out the belt.
Wa r n i n g !
USE SEAT BELTS PROPERLY.• Seat belts can only work when used properly. 
Never wear seat belts in any other way than as 
described in this section, as that could result 
in serious injuries in case of an accident.• Each occupant should wear their seat belt at all 
times, because seat belts help reduce the 
likelihood of and potential severity of injuries 
in accidents, including rollovers. The 
integrated restraint system includes SRS 
(driver airbag, front passenger airbag, front 
and rear door mounted side impact airbags, 
head protection window curtain airbags for 
side windows), ETD (seat belt Emergency 
Tensioning Device ), and front seat knee 
bolsters. The system is designed to enhance the 
protection offered to properly belted occupants 
in certain frontal (front airbags) and side (side 
impact and window curtain airbags) impacts 
which exceed preset deployment thresholds. 

74 Restraint systems
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
• Occupants, especially children, should never 
lean their heads in the area of the door where 
the side airbag inflates. This could result in 
serious injuries or death should the airbag be 
triggered. Always sit upright, properly use the 
seatbelts and appropriate size infant or child 
restraint system• Children 12 years old and under must never 
ride in the front seat, except in a Mercedes-
Benz authorized Baby Smart
TM compatible 
child seat, which operates with the 
BabySmart
TM system installed in the vehicle to 
deactivate the passenger front airbag when it 
is properly installed. Otherwise they will be 
struck by the airbag when it inflates in a crash. 
If this happens, serious or fatal injury can 
result.
Failure to follow these instructions can result in 
severe injuries to you or other occupants.
Wa r n i n g !
Accident research shows that the safest place for 
children in an automobile is in the rear seat. 
Should you choose to place a child 12 years old or 
under in the front passenger seat of your vehicle, 
you must properly use a BabySmart
TM child 
restraint which will turn off the passenger side 
front airbag. BabySmart
TM will not, however, turn 
off the vehicle’s side impact airbag.
It should be noted that with respect to both front 
and rear side impact airbags there is a possibility 
for a side airbag related injury if occupants, 
especially children, are not properly seated or 
restrained when next to a side airbag which needs 
to deploy rapidly in a side impact in order to do its 
job.To help avoid the possibility of injury, please follow 
these guidelines: (1) occupants, especially 
children, should never place their bodies or lean 
their heads in the area of the door where the side 
airbag inflates. This could result in serious 
injuries or death should the side airbag be 
activated; (2) always sit upright, properly use the 
seat belts and use an appropriately sized infant or 
child restraint system for all children 12 years old 
or under; and (3) always wear seat belts properly. 

88 Instrument cluster
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
Indicator lamps in the instrument cluster
High beam
ABS malfunction, see page 248
Brake fluid low (except Canada).
Parking brake engaged, see page 245
Brake fluid low (Canada only).
Parking brake engaged, see page 245
BAS malfunction, see page 247
ESP malfunction, see page 247
Fasten seat belts, see page 248
ESP. Adjust driving to road condition, 
seepage247If the “CHECK ENGINE” malfunction 
indicator lamp comes on when the engine is 
running, it indicates a malfunction of the 
fuel management system, emission control 
system, systems which impact emissions, or 
the fuel cap is not closed tight. In all cases, 
we recommend that you have the 
malfunction checked as soon as possible, 
seepage244
SRS malfunction, see page 246
Function indicator lamp on the center console
Front passenger airbag automatically 
switched off, see page 249
ABSBRAKE
CHECK
ENGINESRS 

243 Contents – Instrument cluster display
Te ch n i c a l
data Instruments 
and controlsOperation DrivingInstrument 
cluster displayPractical hints Car care Index
Instrument cluster displayMalfunction and indicator lamps in 
the instrument cluster  .............244
On-board diagnostic system  .....244
Check engine malfunction 
indicator lamp .............................244
Brake warning lamp  ..................245
Supplemental restraint system 
(SRS) indicator lamp ..................246
Fuel reserve and fuel cap 
placement warning  ....................246
Electronic stability program (ESP) 
— warning lamp  ..........................247
BAS / ESP malfunction indicator 
lamp ..............................................247ABS malfunction 
indicator lamp ............................  248
Seat belt warning lamp ............. 248
Malfunction and indicator lamp in 
the center console  .................... 249
AIRBAG OFF indicator lamp  .... 249
Malfunction and warning 
messages in the multifunction 
display ........................................ 250
DISPLAY DEFECTIVE................  251
BATTERY / ALTERNATOR ........  252
ABS-SYSTEM .............................. 253
BRAKE ASSIST...........................  253
BRAKE LINING WEAR .............. 254
BRAKE FLUID  ............................ 254PARKING BRAKE  .......................255
ENGINE FAN  ...............................255
COOLANT (coolant level)  ..........256
COOLANT TEMP. ........................257
LIGHTING SYSTEM ....................258
LIGHT SENSOR ...........................259
REMOVE KEY  .............................259
STEERING GEAR OIL................. 260
ENGINE OIL LEVEL  ................... 261
WASHER FLUID  .........................262
ELEC. STABIL. PROG. (Electronic 
stability program)  ......................263
TELE AID ..................................... 263 

249 Malfunction and indicator lamps
Te ch n i c a l
data Instruments 
and controlsOperation DrivingInstrument 
cluster displayPractical hints Car care Index Malfunction and indicator lamp in the center 
console
AIRBAG OFF indicator lamp
The 7 indicator lamp will light up for approximately 
6 seconds when you turn the electronic key in steering 
lock to position 1 or 2.
The 7 indicator lamp stays lit as long as a 
BabySmart
TM compatible child seat is properly installed 
on the front passenger seat. It indicates that the front 
passenger airbag is switched off.
See page 65 for BabySmart
TM deactivation system.
BabySmart
TM is a trademark of Siemens Automotive Corp.
Wa r n i n g !
The BabySmart
TM airbag deactivation system will 
ONLY work with a special child seat designed to 
operate with it. It will not work with child seats 
which are not BabySmart
TMcompatible.
Never place anything between seat cushion and 
child seat (e.g. pillow), since it reduces the 
effectiveness of the deactivation systems.Follow the manufacturer’s instructions for 
installation of special child seats.When using a BabySmart
TM compatible child seat 
on the front passenger seat, the front passenger 
airbag will not deploy only if the 7 indicator 
lamp remains illuminated.
Please be sure to check the indicator every time 
you use the special system child seat. Should the 
light go out while the restraint is installed, please 
check installation. If the light remains out, do not 
use the BabySmart
TM restraint to transport children 
on the front passenger seat until the systems has 
been repaired. 

336 Index
Te ch n i c a l
data Instruments 
and controlsOperation DrivingInstrument 
cluster displayPractical hints Car careIndex
Index
AABS (Antilock brake system)  .......................................227
Malfunction indicator lamp ..................................... 248
ABS-SYSTEM - malfunction and warning
messages .................................................................... 253
Adjusting steering wheel  ................................................ 81
Air conditioner refrigerant ........................................... 330
Air distribution  .............................................................. 130
Air volume  ...................................................................... 130
Airbag deactivation system  ............................................ 65
AIRBAG OFF indicator lamp  ........................................249
Airbags .............................................................................. 68
Alarm system ..............................................................39, 41
Anticorrosion/antifreeze  ................... 220, 275, 328, 332
Antilock brake system (ABS)  .......................................227
Malfunction indicator lamp ..................................... 248
Antitheft alarm system  ................................................... 39
Aquaplaning ................................................................... 217
Armrest, rear bench  ...................................................... 162
Ashtrays .......................................................................... 166
Center console, front  ................................................ 166
Rear doors  .................................................................. 167Audio system  .................................................................. 135
Anti-theft system ....................................................... 137
Button and soft key operation  ................................. 138
Cassette mode ............................................................ 143
CD changer ................................................................. 148
CD mode  ..................................................................... 147
Operating and display elements  ............................. 136
Operating safety  ........................................................ 135
Operation – audio and telephone  ........................... 135
Radio mode  ................................................................ 141
Telephone operation  ................................................. 151
Audio systems ................................................................... 97
Cassette player  ............................................................ 99
CD player  ......................................................................98
Radio .............................................................................97
Automatic central locking  .............................................. 35
Automatic climate control  ............................................ 126
Activated charcoal filter  ........................................... 132
Air distribution  .......................................................... 130
Air recirculation  ........................................................ 131
Air volume .................................................................. 130
Basic setting ............................................................... 129
Defogging windows ................................................... 129
Defrosting ...................................................................129
Display and controls  .................................................128
Dust filter  ................................................................... 131