Page 5 of 323

Malfunction and indicator lamps in the
center console 221Practical hintsJump starting 263
AIRBAG OFF indicator lamp 221 First aid kit 238 Towing the vehicle 265
Roll bar warning lamp 221 Shelf below rear window 238 Transmission selector lever,
manually unlocking 268
Malfunction and warning messages in
the multifunction display 222Stowing things in the vehicle 238 Bulbs 269
DISPLAY DEFECTIVE (engine
control unit) 223Luggage cover 238 Adjusting headlamp aim 274
DISPLAY DEFECTIVE (several
systems) 223Spare wheel, vehicle tools, storage
compartment 240Changing batteries in the
electronic main key 277
BATTERY/ALTERNATOR 224 Vehicle jack 241 Raising soft top manually 280
ABS-SYSTEM 225 Fuses 242 Antenna 287
BRAKE ASSIST 225 Hood 244 Manual release for fuel filler
BRAKE LINING WEAR 226 Checking engine oil level 246 flap 287
BRAKE FLUID 226 Automatic transmission fluid level 247 Trunk lamp 288
PARKING BRAKE 227 Coolant level 247 Replacing wiper blade insert 288
ENGINE FAN 227 Adding coolant 248
COOLANT (coolant level) 228
Windshield washer / headlamp clean.system
249
Vehicle care
COOLANT TEMP. (coolant
temperature) 229Windshield and headlamp washer fluid
mixing ratio 249Cleaning and care of the vehicle 292
LIGHTING SYSTEM 230 Wheels 250 Engine cleaning 293
LIGHT SENSOR 231 Tire replacement 250 Vehicle washing 293
STEER. WHEEL ADJUST. 231 Rotating wheels 251 Power washer 293
OIL TEMP. 232 Spare wheel 252 Plastic and rubber parts 293
ENGINE OIL LEVEL 232 Changing wheels 254 Tar stains 294
ELEC. STABIL. PROG. (Electronic
stability program) 234Tire inflation pressure 259 Window cleaning 294
WASHER FLUID 235 Battery 261
5
Page 27 of 323

Central locking system
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Start lock-out
Important!
Removing the electronic key from the steering lock
activates the start lock-out. The engine cannot be
started.
Inserting the electronic key in the steering lock
deactivates the start lock-out.
Note:
In case the engine cannot be started (vehicle’s battery is
in order), the system is not operational. Contact an
authorized Mercedes-Benz Center or call 1-800-FOR-
MERCedes (in the USA) or 1-800-387-0100 (in Canada).General notes on the central locking system
If the electronic key is inserted in the steering lock, the
vehicle cannot be locked or unlocked with the remote
control.
If the vehicle cannot be locked or unlocked:
•Aim transmitter eye at a receiver of either door
handle. Check the batteries of the electronic main
key, see page 288, or synchronize the remote
control, see page 290.
•Use the mechanical key to unlock the driver’s door.
To start the engine, insert the electronic main key in
the steering lock. There could be a slight delay until
the electronic main key can be turned in the
steering lock.
27
Page 28 of 323

Central locking system
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Central locking system
Radio frequency and infrared remote control
The electronic main key has an integrated radio
frequency and infrared remote control.
Due to the extended operational range of the remote
control, it could be possible to unintentionally lock or
unlock the vehicle by pressing the transmit button. If
one of the transmit buttons is pressed, the battery check
lamp lights up briefly – indicating that the batteries are
in order. See page 288 for checking batteries.
The vehicle doors, trunk and fuel filler flap can be
centrally locked and unlocked via remote control.
Opening and closing the windows remotely can only be
done with the infrared portion of the remote control.
Aim transmitter eye at a receiver (6 or 7), press and
hold transmit button Œor ‹.
If the electronic key is inserted in steering lock, the
vehicle cannot be locked or unlocked with the remote
control.1Transmit button
‹ Locking
Œ Unlocking
Š Opening trunk (if not separately locked)
2Lamp for battery check (see page 288 for changing
batteries if it does not light up briefly)
3PANIC button
4Transmitter eye
5Locking tab for mechanical key
P80.30-2070-26
28
Page 30 of 323

Central locking system
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Locking and unlocking with remote control
Unlocking:
Press transmit button Œ. All turn signal lamps blink
once to indicate that the vehicle is unlocked.
The remote control can be programmed for two kinds of
unlocking modes (see below):
Selective unlocking mode –
Press transmit button Œ once to unlock driver’s door
and fuel filler flap.
Press transmit button Œ twice to unlock both doors,
fuel filler flap, and trunk.
Global unlocking mode –
Press transmit button Œ once to unlock both doors,
fuel filler flap, and trunk.
Notes:
If the trunk was previously locked separately, it will
remain locked, see page
39.
The presently active unlocking mode (selective or
global) can only be determined by unlocking the vehicle
with the remote control (see below for changing mode).
If within 40 seconds of unlocking with the remote
control, neither door nor trunk is opened, the electronic
key is not inserted in the steering lock, or the central
locking switch is not activated, the vehicle will
automatically lock.
Locking:
Press transmit button ‹ once. All turn signal lamps
blink three times to indicate that the vehicle is locked.
If they do not blink three times, a door or trunk is not
properly closed.
Note:
If the vehicle cannot be locked or unlocked by pressing
the transmit button, then it may be necessary to change
the batteries in the electronic main key (if ok, battery
check lamp in electronic main key will light briefly
when pressing transmit button) or to synchronize the
remote control, see pages
277 and 279.
30
Page 31 of 323
Central locking system
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Choosing global or selective mode on remote control
Press and hold transmit buttons ‹ and Œ
simultaneously for approx. 6 seconds to reprogram the
remote control. Battery check lamp will blink two times
indicating the completed mode change.
Opening the trunk
Press transmit buttonŠ until trunk lid is released.
A minimum height clearance of 5.9 ft. (1.8 m) is
required to open the trunk lid.Important!
Do not place remote control in trunk since trunk is
locked when the lid is closed if the vehicle is centrally
locked.
Note:
If the trunk was previously locked separately, it will
remain locked, see page 38.
31
Page 32 of 323

Central locking system
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Opening and closing windows from outside
Aim transmitter eye of remote control at a door receiver.
To o pen :
Continue to press transmit button Œ after unlocking
the vehicle.
The windows begin to open after approx. 1 second.
To interrupt opening procedure, release transmit
button.
To cl os e:
Continue to press transmit button ‹ after locking
the vehicle.
The windows begin to close after approx. 1 second.
To interrupt closing procedure, release transmit button.Note:
If the windows cannot be operated automatically by
pressing the transmit button of the remote control then
it may be necessary to change the batteries in the
electronic main key (if ok, battery check lamp in
electronic main key will light briefly when pressing
transmit button), or to synchronize the remote control,
see page 2
77
and 2
79.
Wa r n i n g !
Never operate the windows if there is the
possibility of anyone being harmed by the opening
or closing procedure.In case the procedure causes potential danger, the
procedure can be immediately halted by releasing
the remote control button. To reverse direction of
movement press Œ for opening or ‹ for
closing.
32
Page 47 of 323
Seats
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Memory storing and recalling
6Memory button
7Position buttons
Synchronizing power seats and head restraints
If the power supply was interrupted (battery
disconnected or empty), the power seats and head
restraints are no longer adjusted automatically.
To resynchronize the adjustment feature, turn
electronic key in steering lock to position 2, move the
seat completely forward and the head restraint fully
down, and hold respective buttons for approx.
2seconds.
Caution !
Do not remove head restrains except when mounting seat
covers. For removal see page 50. Whenever restraints
have been removed be sure to reinstall them before driving.
47
Page 56 of 323
Seats
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Notes:
When in operation, the seat heater consumes a large
amount of electrical power. It is not advisable to use the
seat heater longer than necessary.
The seat heaters may automatically switch off if too
many power consumers are switched on at the same
time, or if the battery charge is low. When this occurs,
the indicator lamp in the switch will blink (both
indicator lamps blink during rapid seat heating mode).
The seat heaters will switch on again automatically as
soon as sufficient voltage is available.
If the blinking of the indicator lamps is distracting to
you, the seat heaters can be switched off.
56