2001 MERCEDES-BENZ CLK CABRIOLET warning light

2 Contents
Trip and main odometer,
vehicle speed, FSS and
engine oil level indicator ........... 92
Audio systems .................................. 93
Radio .............................................. 93
CD player ....................................... 94
Cassette player ............................. 95
Telephone .......................................... 96
Telephone book ............................ 96
Redialing ....................................... 98
Incoming call .............................. 100
Navigation system .......................... 101
Trip computer ................................. 102
Malfunction message
memory ...................................... 104
Individual settings ......................... 106
Setting the audio volume .............. 108
Flexible service system
(FSS) ............................................ 109
Engine oil level indicator .............. 112Engine oil consumption ................ 113
Exterior lamp switch ...................... 114
Night security illumination .......... 115
Headlamp cleaning system ........... 116
Combination switch ....................... 117
Hazard warning flasher
switch .......................................... 119
Automatic climate control ............ 120
Display and controls ................. 122
Basic setting ............................... 122
Economy ...................................... 123
Special settings .......................... 123
Rear window defroster .............. 124
Air recirculation ........................ 125
Residual engine
heat utilization ........................... 125
Dust filter .................................... 126
Audio and telephone,
operation .................................... 127
Power windows .............................. 146Interior lighting ............................. 149
Sun visors ....................................... 150
Illuminated vanity mirrors ........... 150
Interior ............................................ 151
Storage compartments,
armrest and cup holder ........... 151
Glove box ..................................... 151
Ashtray ............................................ 154
Lighter ............................................. 155
Cargo tie down rings ..................... 156
Parcel net in front
passenger footwell .................... 156
Armrest, rear bench ...................... 156
Telephone, general ........................ 157
Cellular telephone ......................... 157
Garage door opener ....................... 158
Soft top ............................................ 162
Wind screen .................................... 170

4 Contents
Malfunction and indicator
lamps in the
center console ...........................233
AIRBAG OFF
indicator lamp .............................233
Roll bar warning lamp ...............233
Malfunction and
warning messages in the
multifunction display ...............234
DISPLAY DEFECTIVE
(engine control unit) ..................235
DISPLAY DEFECTIVE
(several systems) ........................235
BATTERY/ALTERNATOR ...........236
ABS-SYSTEM ...............................237
BRAKE ASSIST ...........................237
BRAKE LINING WEAR ..............238
BRAKE FLUID .............................238PARKING BRAKE ....................... 239
ENGINE FAN ............................... 239
COOLANT
(coolant level) ............................. 240
COOLANT TEMP.
(coolant temperature) ............... 241
LIGHTING SYSTEM ................... 242
LIGHT SENSOR .......................... 243
STEER. WHEEL ADJUST. .......... 243
ENGINE OIL LEVEL ................... 244
ELEC. STABIL. PROG.
(Electronic stability
program) ..................................... 245
REMOVE KEY ............................. 245
WASHER FLUID ......................... 246
TELE AID ..................................... 247
Practical hintsFirst aid kit .....................................250
Shelf below rear window ..............250
Stowing things in
the vehicle ..................................250
Luggage cover .................................250
Fuses ................................................252
Hood .................................................254
Checking engine oil level .............256
Automatic transmission
fluid level ...................................257
Coolant level ...................................257
Adding coolant ...........................258
Windshield washer / headlamp
cleaning system ........................259
Windshield and headlamp
washer fluid mixing ratio .........259

19 Instruments and controls
Te ch n ica l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index For more detailed descriptions see Index on page 325.
For adjustment of air outlets, refer to automatic climate
control, see page 120.
1Side air outlet, adjustable
2Air volume control for side air outlet
3Exterior lamp switch, see page 114
4Parking brake release, see page 204
5Parking brake pedal, see page 204
6Hood lock release, see page 254
7Combination switch, see page 117
8Cruise control switch, see page 214
9Multifunction steering wheel, see page 88
Horn (with electronic key in steering lock
position 1 or 2)
10Instrument cluster, see page 82
11Voice recognition system switch, see separate
operating instructions
12Steering lock with ignition/starter
switch, see page 19213Center air outlets, adjustable
14Air volume control for center air outlets
15Left front seat heater switch, see page 56
16Headlamp washer switch, see page 116
17Roll bar switch, see page 53
Roll bar warning lamp, see page 233
18Hazard warning f lasher switch, see page 119
19Central locking switch, see page 36
20Switch for tow-away alarm, see page 44
Indicator lamp for antitheft alarm system, see
page 42
21Right front seat heater switch, see page 56
22Automatic climate control, see page 120
Rear window defroster switch, see page 124
23Glove box (illuminated with electronic key in
steering lock position 1 or 2), see page 151
24Audio system, see page 127
25Storage compartment
26Ashtray with lighter, see page 154

23 Contents – Operation
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Trip computer ................................. 102
Malfunction message
memory ...................................... 104
Individual settings ......................... 106
Setting the audio volume .............. 108
Flexible service system
(FSS) ............................................ 109
Engine oil level indicator .............. 112
Engine oil consumption .................113
Exterior lamp switch ......................114
Night security illumination ..........115
Headlamp cleaning system ...........116
Combination switch .......................117
Hazard warning flasher
switch ...........................................119Automatic climate control ............ 120
Display and controls ................. 122
Basic setting ............................... 122
Economy ...................................... 123
Special settings .......................... 123
Rear window defroster .............. 124
Air recirculation ........................ 125
Residual engine
heat utilization ........................... 125
Dust filter .................................... 126
Audio and telephone,
operation .................................... 127
Power windows .............................. 146
Interior lighting ............................. 149
Sun visors ........................................150Illuminated vanity mirrors ........... 150
Interior ............................................ 151
Storage compartments,
armrest and cup holder ........... 151
Glove box ..................................... 151
Ashtray ............................................ 154
Lighter ............................................. 155
Cargo tie down rings ..................... 156
Parcel net in front
passenger footwell .................... 156
Armrest, rear bench ...................... 156
Telephone, general ........................ 157
Cellular telephone ......................... 157
Garage door opener ....................... 158
Soft top ............................................ 162
Wind screen .................................... 170

115 Exterior lamp switch
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Notes:
With the electronic key removed and the driver’s door
open, a warning sounds and the message “SWITCH OFF
LIGHTS” in the multifunction indicator appears if the
vehicle’s exterior lamps (except standing lamps) are not
switched off.
Fog lamps will operate with the parking lamps and/or
the low beam headlamps on. Fog lamps should only be
used in conjunction with low beam headlamps. Consult
your State or Province Motor Vehicle Regulations
regarding allowable lamp operation.
Fog lamps are automatically switched off when the
exterior lamp switch is turned to position D.Daytime running lamps (Canada only)
When the engine is running and the selector lever is in
a driving position, the low beam headlamps (includes
parking lamps, side marker lamps, taillamps and
license plate lamps) are automatically switched on.
When shifting from a driving position to position “N”
or “P”, the low beam switches off (2 seconds delay).
For nighttime driving the exterior lamp switch should
be turned to position B to permit activation of the
high beam headlamps.
Night security illumination
When exiting the vehicle after driving with the exterior
lamps on, they switch on again for added illumination
for approximately 30 seconds after closing the last door.
The lamp-on time period can be changed at your
Mercedes-Benz Center.

227 Contents – Instrument cluster display
Te ch n ica l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index
Instrument cluster displayMalfunction and
indicator lamps in the
instrument cluster ....................228
On-board diagnostic system
Check engine malfunction
indicator lamp .............................228
Brake warning lamp ..................229
Supplemental restraint
system (SRS)
indicator lamp .............................230
Fuel reserve and fuel cap
placement warning ....................230
Electronic stability program
(ESP) — warning lamp ............... 231
BAS/ESP malfunction
indicator lamp ............................. 231
ABS malfunction
indicator lamp ............................. 231Telescoping steering column –
indicator lamp ............................ 232
Seat belt warning lamp ............. 232
Malfunction and indicator
lamps in the
center console ........................... 233
AIRBAG OFF
indicator lamp ............................ 233
Roll bar warning lamp .............. 233
Malfunction and
warning messages in the
multifunction display .............. 234
DISPLAY DEFECTIVE
(engine control unit) ................. 235
DISPLAY DEFECTIVE
(several systems) ....................... 235
BATTERY/ALTERNATOR .......... 236
ABS-SYSTEM .............................. 237
BRAKE ASSIST ........................... 237BRAKE LINING WEAR ..............238
BRAKE FLUID .............................238
PARKING BRAKE .......................239
ENGINE FAN ...............................239
COOLANT
(coolant level) .............................240
COOLANT TEMP.
(coolant temperature) ................ 241
LIGHTING SYSTEM ....................242
LIGHT SENSOR ...........................243
STEER. WHEEL ADJUST. ...........243
ENGINE OIL LEVEL ...................244
ELEC. STABIL. PROG.
(Electronic stability
program) ......................................245
REMOVE KEY .............................245
WASHER FLUID .........................246
TELE AID .....................................247

228 Malfunction and indicator lamps
Te ch n ica l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index
Malfunction and indicator lamps
in the instrument cluster
General information:
If a bulb in the instrument cluster fails to light up
during the bulb self-check when turning the electronic
key in steering lock to position 2, have it checked and
replaced if necessary.
On-board diagnostic system
Check engine malfunction indicator lamp
Engine malfunction indicator lamp. If 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 (check the
fuel cap). If the “CHECK ENGINE” lamp is illuminated
continuously and the vehicle is driving normally, you
may still drive the vehicle, however, in all cases, we
recommend that you have the system checked at your
authorized Mercedes-Benz Center as soon as possible.
If the “CHECK ENGINE” lamp comes on continuously
and / or the vehicle is not driving normally (e.g.
malfunction of the fuel management system or running out of fuel), serious damage can occur to the emission
system. Please contact your authorized Mercedes-Benz
Center immediately.
The Sequential Multiport Fuel Injection (SFI) control
module monitors emission control components that
either provide input signals to or receive output signals
from the control module. Malfunctions resulting from
interruptions or failure of any of these components are
indicated by the “CHECK ENGINE” malfunction
indicator lamp in the instrument cluster and are
simultaneously stored in the SFI control module.
If the “CHECK ENGINE” malfunction indicator lamp
comes on, have the system checked at your authorized
Mercedes-Benz Center as soon as possible.
With some exceptions, the control module switches off
the “CHECK ENGINE” malfunction indicator lamp if the
condition, causing the lamp to come on, no longer exists
during three consecutive cycles. See also page 230 for
fuel cap placement warning.
An on-board diagnostic connector is located in the
passenger compartment near to the parking brake
pedal, allowing the accurate identification of system
malfunctions through the readout of diagnostic trouble
codes.
CHECK
ENGINE

231 Malfunction and indicator lamps
Te ch n ica l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index Electronic stability program (ESP) — warning lamp
The yellow ESP warning lamp in the
speedometer dial comes on with the
electronic key in steering lock position 2.
It should go out with engine running.
See page 220 if the warning lamp lights up or flashes
when the vehicle is moving.
BAS / ESP malfunction indicator lamp
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 comes on with the
electronic key in steering lock position 2. It should go
out with the engine running.
If the BAS/ESP malfunction indicator lamp remains
illuminated with the engine running, see page 216 for
notes on the brake assist (BAS) and page 220 for notes
on the electronic stability program (ESP).ABS malfunction indicator lamp
The ABS malfunction indicator lamp in the
instrument cluster comes on with the
e l e c tr o n ic key i n ste e ri n g l oc k p os i ti o n 2 a n d
should go out with the engine running.
When the ABS malfunction indicator lamp symbol and
warning in the instrument cluster remains illuminated
while the engine is running, it indicates that the ABS
has detected a malfunction and has switched off. In this
case, the brake system functions in the usual manner,
but without antilock assistance.
With the ABS malfunctioning, the BAS and ESP are also
switched off. Both malfunction indicator lamps come on
with the engine running.
If the charging voltage falls below 10 volts, the
malfunction indicator lamp comes on and the ABS is
sw itched of f. Wh en t he voltage is a bove th is value a gain,
the malfunction indicator lamp should go out and the
ABS is operational.
Have the system checked at your authorized
Mercedes-Benz Center as soon as possible.
See page 218 for notes on the antilock brake system
(ABS).
BAS
ESP
ABS