2001 MERCEDES-BENZ CLK55AMG key battery

4 Contents
Malfunction and indicator lamps
in the center console ................232
AIRBAG OFF
indicator lamp .............................232
Malfunction and warning
messages in the
multifunction display ...............233
DISPLAY DEFECTIVE
(engine control unit) ..................234
DISPLAY DEFECTIVE
(several systems) ........................234
BATTERY/ALTERNATOR ...........235
ABS-SYSTEM ...............................236
BRAKE ASSIST ...........................236
BRAKE LINING WEAR ..............237
BRAKE FLUID .............................237
PARKING BRAKE .......................238
ENGINE FAN ...............................238
COOLANT
(coolant level) .............................239
COOLANT TEMP.
(coolant temperature) ................240
LIGHTING SYSTEM .................... 241LIGHT SENSOR .......................... 242
STEER. WHEEL ADJUST. .......... 242
ENGINE OIL LEVEL ................... 243
ELEC. STABIL. PROGRAM.
(Electronic stability
program) ..................................... 244
REMOVE KEY ............................. 244
WASHER FLUID ......................... 245
TELE AID ..................................... 246
Practical hintsFirst aid kit ..................................... 248
Shelf below rear window .............. 248
Stowing things in
the vehicle ................................. 248
Fuses ............................................... 249
Hood ................................................ 251
Checking engine oil level ............. 253
Automatic transmission
fluid level ................................... 254
Coolant level ................................... 254
Adding coolant ........................... 255Windshield washer / headlamp
cleaning system ........................256
Windshield and
headlamp washer
fluid mixing ratio .......................256
Spare wheel, vehicle tools,
storage compartment ................257
Vehicle jack .....................................258
Wheels .............................................259
Tire replacement ........................259
Rotating wheels ..........................260
Spare wheel .................................... 261
Changing wheels ...........................262
Tire inflation pressure ..................267
Battery .............................................268
Jump starting ..................................270
Towing the vehicle .........................272
Transmission selector lever,
manually unlocking ................... 274
Exterior lamps ................................275
Headlamp assembly ................... 276
Taillamp assemblies ..................278
Adjusting headlamp aim ...............280

27 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 283 or to synchronize the remote
control, see page 285.
•Use the mechanical key to unlock the driver’s door.
To start th e engine, insert t he el ectronic main key in
the steering lock. There could be a slight delay until
the electronic main key can be turned in the
steering lock.
Important!
When unlocking the driver’s door with the mechanical
key, the exterior lamps will flash and the alarm will
sound.
To cancel the alarm, insert the electronic key in the
steering lock or press buttonŒ or‹ on the
electronic main key.

28 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 283 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 and sliding/pop-up
roof 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 Œ
or ‹.
With vehicle centrally locked, the trunk can also be
opened by using the remote control.
If the electronic key is inserted in steering lock, the
vehicle cannot be locked or unlocked, and the trunk lid
cannot be opened with the remote control.1Transmit button
‹ Locking
ΠUnlocking
Š Opening trunk (if not separately locked)
2Lamp for battery check (see page 283 for changing
batteries if it does not light up brief ly)
3PANIC button
4Transmitter eye
5Locking tab for mechanical key
P80.35-2032-26
24
3
5
1

30 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 unl ock d river’s d oor
and fuel filler flap.
Press transmit button Πtwice to unlock both doors,
fuel filler flap, and trunk.
Global unlocking mode –
Press transmit button Πonce to unlock both doors,
fuel filler flap, and trunk.
Notes:
If the trunk was previously locked separately, it will
remain locked, see page 38.
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 or 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 page 283 and 285.

32 Central locking system
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Opening and closing windows and
sliding/pop-up roof from outside
Aim transmitter eye of remote control at a door receiver.
To o pen :
Continue to press transmit button Πafter unlocking
the vehicle.
The windows and sliding/pop-up roof 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 and sliding/pop-up roof begin to close
after approx. 1 second.
To interrupt closing procedure, release transmit button.Note:
If the windows and sliding/pop-up roof cannot be
operated automatically by pressing the transmit button
of th e rem ote control th en it may be nec essa ry to cha nge
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 283 and 285.
Wa r n i n g !
Never operate the windows or sliding/pop-up roof 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.

41 Central locking system
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Trunk lid emergency release
The emergency release button (1) is located in the trunk
lid.
Briefly press emergency release button (1).
All doors, the fuel filler flap, and the trunk unlock; and
the trunk lid opens.Note:
The emergency release button (1) only unlocks and
opens the trunk while the vehicle is standing.
Important!
The emergency trunk lid release button (1) does not
open the trunk lid, if:
•the vehicle battery is discharged or disconnected,
•the trunk lid was previously locked separately with
the mechanical key, see page 38.
Illumination of the emergency release button (1):
The button will blink for 30 minutes after opening the
trunk.
The button will blink for 60 minutes after closing the
trunk.
1

49 Seats
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Recalling
To recall a seat/head restraint and exterior rear view
mirror position, push and hold position button “1”, “2”
or “3” until seat/head restraint and exterior rear view
mirror movement has stopped. The seat/head restraint
and exterior rear view mirror movement stops when the
position button is released.
Caution!
Do not operate the power seats using the memory
button if the seat backrest is in an excessively reclined
position. Doing so could cause damage to front or rear
seats.
First move the backrest to an upright position.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.

112 Flexible service system
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
The service indicator disappears automatically after
30 seconds or if button J on the instrument cluster is
pressed.
Calling up service indicator manually:
Turn the electronic key in steering lock to position 1.
Call up the trip odometer and main odometer by
pressing button è or ÿ on the multifunction
steering wheel until the display appears. See page 94.
Press button j or k until the FSS indicator
appears.
Pressing the è or ÿ button displays the next or
previous system.
Important!
The FSS indicator is not an engine oil level indicator.
See page 114 for engine oil level indicator.Notes:
When disconnecting vehicle battery for one or more
days at a time, such days will not be counted. Any such
days not counted by the FSS can be added by your
Mercedes-Benz Center.
The interval between services is determined by the type
of driving for which the vehicle is used. For example,
driving at extreme speeds, and cold starts combined
with short distance driv ing in wh ich th e engine d oes not
reach operating normal temperature, reduce the interval
between services.