2003 MERCEDES-BENZ CLK-CLASS key battery

191 Steering lock
Technical
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Important!
If the electronic key is left in the steering lock position 0
for an extended period of time, it can no longer be
turned in the lock. In this case, remove electronic key
from steering lock and reinsert.
Caution!
To prevent accelerated battery discharge and a possible
dead battery, always remove the electronic key from the
steering lock. Do not leave the electronic key in steering
lock position 0.Notes:
A warning sounds when the driver’s door is opened
while the electronic key is in steering lock position 1
or 0.
If the electronic key cannot be turned in the steering
lock, the vehic le b attery may no t b e suf f i cien tly charged .
See battery on page 268 or jump starting on page 270.
With the engine at idle speed, the charging rate of the
alternator (output) is limited.
It is therefore recommended that you turn off
unnecessary electrical consumers while driving in stop-
and-go traf fic. This precaution helps to avoid draining of
the battery.
Unnecessary strain on the battery and charging system
may be minimized by turning off the following power
consumers, for example: Heated seats, rear window
defroster. In addition, the automatic climate air volume
control should be set to the lowest position.
The steering lock can only be unlocked with the vehicle
battery properly charged and connected.
J_C208_II.book Seite 191 Donnerstag, 31. Mai 2001 10:13 10
ProCarManuals.com

192 Starting and turning off the engine
Technical
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Starting and turning off the engine
Before starting
Ensure that parking brake is engaged and that selector
lever is in position “P” or “N”. Turn electronic key in
steering lock to position 2.
Starting
Do not depress accelerator.
Briefly turn electronic key in steering lock clockwise to
the stop and release. The starter will engage until the
engine is running.
If engine will not run, and the starting procedure stops,
turn electronic key completely to the left and repeat
starting the engine.
After several unsuccessful attempts, have the system
checked at the nearest authorized Mercedes-Benz
Center.Important!
Due to the installed starter non-repeat feature, the
electronic key must be turned completely to the left
before attempting to start the engine again.
In areas where temperatures frequently drop below -4
°F
(-20
°C) we recommend that an engine block heater be
installed. Your authorized Mercedes-Benz Center will
advise you on this subject.
Note:
Too many unsuccessful starting attempts may discharge
the battery.
Turning off
Turn the electronic key in the steering lock to position 0
to stop the engine.
The electronic key can only be removed with the
selector lever in position “P”.
J_C208_II.book Seite 192 Donnerstag, 31. Mai 2001 10:13 10
ProCarManuals.com

219 Driving systems
Technical
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Notes:
The malfunction indicator lamp¿ for the ESP is
combined with that of the BAS.
The yellow BAS/ESP malfunction indicator lamp in the
instrument cluster and the yellow ESP warning
lampv in the speedometer dial come on with the
electronic key in steering lock position 2. They should
go out with the engine running.
If the BAS/ESP malfunction indicator lamp comes on
continuously with the engine running, a malfunction
has been detected in either system. Only partial engine
output will be available.
If the BAS malfunctions, the brake system functions in
the usual manner, but without BAS.
If the ESP warning message is displayed, have the BAS
or ESP checked at your authorized Mercedes-Benz
Center as soon as possible.
For ESP warning message, see page 243.
With the ABS malfunctioning, the ESP is also switched
off.Driving the vehicle with varied size tires will cause the
wheels to rotate at different speeds, therefore the ESP
may activate (yellow ESP warning lamp in speedometer
dial c omes on ). For t his r eason , all wheels , i nclud in g t he
spare wheel, must have the same tire outside diameter.
When testing the parking brake on a brake test
dynamometer, the engine must be shut off. Otherwise,
the ESP will immediately be engaged and will apply the
rear wheel brakes.
In winter operation, the maximum effectiveness of the
ESP i s on ly achieved wit h Me rced es -B enz re comm end ed
M+S rated radial-ply tires and / or snow chains.
Synchronizing ESP
If the power supply was interrupted (battery
disconnected or empty), the BAS/ESP malfunction
indicator lamp may be illuminated with the engine
running.
Turn steering wheel completely to the left and then to
the right. The BAS/ESP malfunction indicator lamp
should go out.
J_C208_II.book Seite 219 Donnerstag, 31. Mai 2001 10:13 10
ProCarManuals.com

225 Contents – Instrument cluster display
Technical
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index
Instrument cluster displayMalfunction and
indicator lamps in the
instrument cluster ....................226
On-board diagnostic system
Check engine malfunction
indicator lamp .............................226
Brake warning lamp ..................227
Supplemental restraint system
(SRS) indicator lamp ..................228
Fuel reserve and fuel cap
placement warning ....................228
Electronic stability program
(ESP) — warning lamp ...............229
BAS/ESP malfunction
indicator lamp .............................229
ABS malfunction
indicator lamp .............................229
Telescoping steering column –
indicator lamp .............................230
Seat belt warning lamp .............230Malfunction and
indicator lamps in the
center console ........................... 231
AIRBAG OFF indicator lamp .... 231
Malfunction and
warning messages in the
multifunction display .............. 232
DISPLAY DEFECTIVE
(engine control unit) ................. 233
DISPLAY DEFECTIVE
(several systems) ....................... 233
BATTERY/ALTERNATOR .......... 234
ABS-SYSTEM .............................. 235
BRAKE ASSIST ........................... 235
BRAKE LINING WEAR .............. 236
BRAKE FLUID ............................ 236
PARKING BRAKE ....................... 237
ENGINE FAN ............................... 237
COOLANT
(coolant level) ............................. 238
COOLANT TEMP.
(coolant temperature) ............... 239LIGHTING SYSTEM ....................240
LIGHT SENSOR ........................... 241
STEER. WHEEL ADJUST. ........... 241
ENGINE OIL LEVEL ...................242
ELEC. STABIL. PROGRAM.
(Electronic stability
program) ......................................243
REMOVE KEY .............................243
WASHER FLUID .........................244
TELE AID .....................................245
J_C208_II.book Seite 225 Donnerstag, 31. Mai 2001 10:13 10
ProCarManuals.com

243 Malfunction and warning messages
Technical
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index ELEC. STABIL. PROG.
(Electronic stability program)
1 A malfunction has been detected in the system. Pressing the
accelerator pedal will require greater effort. Only partial engine
output will be available.
2 This message may be displayed if the power supply was
interrupted (battery disconnected or empty).
3 Synchronize ESP. See page 219
REMOVE KEY
This message plus an audible alarm indicate that the
electronic key is in steering lock position 0 or 1, and the
driver’s door is open.
Line 1 Line 2
DISPLAY DEFECTIVE VISIT WORKSHOP!
ELEC. STABIL. PROG. VISIT WORKSHOP!
1, 2, 3
Line 1 Line 2
REMOVE KEY!
P54.30-3573-21
J_C208_II.book Seite 243 Donnerstag, 31. Mai 2001 10:13 10
ProCarManuals.com

247 Contents – Practical hints
Technical
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index
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 ...........................255
Windshield washer / headlamp
cleaning system .........................256
Windshield and headlamp
washer fluid mixing ratio .........256Spare 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 .................. 278Adjusting headlamp aim ...............280
Changing batteries in
the electronic key .....................283
Synchronizing remote
control ..........................................285
Emergency operation of
sliding/pop-up roof ...................286
Manual release for
fuel filler flap .............................287
Replacing wiper
blade insert ................................287
Roof rack .........................................289
J_C208_II.book Seite 247 Donnerstag, 31. Mai 2001 10:13 10
ProCarManuals.com

269 Battery
Technical
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index Therefore, we strongly recommend that you have the
battery charge checked frequently, and corrected if
necessary, especially if you use the vehicle less than
approximately 200 miles (300 km) per month,
mostly for short distance trips, or if it is not used for
long periods of time.
Only charge a battery with a battery charger after the
battery has been disconnected from the vehicle’s
electrical circuit.
Always disconnect the battery negative lead first and
connect last.
When removing and connecting the battery, always
make sure that all electrical consumers are off and the
electronic key is in steering lock position 0. The battery
and its filler caps must always be securely installed
when the vehicle is in operation. During removal and
installation always protect the disconnected battery
positive (+) terminal with the cover attached to the
battery.
While the engine is running the battery terminal clamps
must not be loosened or detached, otherwise the
generator and other electronic components would be
damaged.Note:
After reconnecting the battery also set the clock (see
page 108), resynchronize the front seats (see page 49),
front seat head restraints (see page 49), the express
feature of the power windows (see page 148), the
sliding/pop-up roof (see page 150) and the electronic
stability program (ESP) (see page 219).
Battery recycling
Batteries contain material that can harm the
environment with improper disposal.
Large 12 Volt storage batteries contain lead.
Recycling of batteries is the preferred method of
disposal.
Many states require sellers of batteries to accept old
batteries for recycling.
J_C208_II.book Seite 269 Donnerstag, 31. Mai 2001 10:13 10
ProCarManuals.com

283 Electronic key
Technical
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index Changing batteries in the electronic key
1Transmit buttons
2Lamp for battery check and function control
Checking batteries
If one of the transmit buttons (1) is pressed, the battery
check lamp (2) lights up briefly – indicating that the
batteries are in order.
Change batteries if the battery check lamp (2) does not
light up briefly.Changing batteries
Move locking tab (3) in direction of right arrow and
remove mechanical key (4, left arrow).
P80.20-2201-26
1
2
P80.35-2029-26
4
3
J_C208_II.book Seite 283 Donnerstag, 31. Mai 2001 10:13 10
ProCarManuals.com