check engine MERCEDES-BENZ CLK-CLASS 2000 Owner's Manual

Check regularly and before a long trip
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Check regularly and before a long trip 1Engine oil level
See “Engine oil level, checking” on page108and
page234.
2Coolant level
See “Coolant level” on page237.
3Brake fluid
See “Brake fluid” on page 285.
4Windshield washer system
Headlamp cleaning system
For refilling reservoir see page238.
Ve h i c l e l i g h t i n g : Check function and cleanliness. For
replacement of light bulbs, see “Exterior lamps” on
page256.
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Instrument cluster display
BRAKE FLUID 217
PARKING BRAKE 218
Malfunction and indicator lamps in the
instrument cluster 208ENGINE FAN 218
On-board diagnostic system
Check engine malfunction indicator lamp
208COOLANT (coolant level) 219
Brake warning lamp 209 COOLANT (coolant temp.) 220
Supplemental restraint system STEER. WHEEL ADJUST. 221
(SRS) indicator lamp 210 LIGHT SENSOR 221
Fuel reserve and fuel cap LIGHTING SYSTEM 222
placement warning 210 WASHER FLUID 223
Electronic stability program(ESP) OIL TEMP. (engine oil temperature) 224
warning lamp 211 ENGINE OIL LEVEL 224
BAS/ESP malfunction indicator lamp 211 ELEC. STABIL. PROG. (Electronic
ABS malfunction indicator lamp 211 stability program) 226
Telescoping steering column –
indicator lamp 212
Seat belt warning lamp 212
Malfunction and indicator lamps in the
center console 212
AIRBAG OFF indicator lamp 212
Roll bar warning lamp 221
Malfunction and warning messages in
the multifunction display 213
DISPLAY DEFECTIVE 214
BATTERY/ALTERNATOR 215
ABS-SYSTEM 216
BRAKE ASSIST 216
BRAKE LINING WEAR 217
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Malfunction and indicator lamps
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Malfunction and indicator lamps
in the instrument cluster
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 page210for
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.
system or emission control system. See also page 210 for malfunctions of the fuel managment
CHECK
ENGINE
208
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Malfunction and indicator lamps
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Except Canada
Canada only
When the brake warning lamp and message appear
while the engine is running, this means:
•there is insufficient brake fluid in the reservoir
(engine running and parking brake released), or
•the parking brake is set (engine running).Note:
If you find that the minimum mark on the brake fluid
reservoir is reached, have the brake system checked for
brake pad thickness and leaks.
BRAKE
Wa r n i n g !
Driving with the brake warning lamp illuminated
can result in an accident. Have your brake system
checked immediately if the brake warning lamp
stays on. Don’t add brake fluid before checking the
brake system. Overfilling the brake fluid reservoir
can result in spilling brake fluid on hot engine
parts and the brake fluid catching fire. You can be
seriously burned.
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Malfunction and indicator lamps
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Supplemental restraint system (SRS) indicator lamp
The operational readiness of the airbag
system is verified by the indicator lamp
“SRS” in the instrument cluster when
turning the electronic key in steering lock to position 1
or 2. If no malfunction is detected, the lamp will go out
after approximately 4 seconds; after the lamp goes out,
the system continues to monitor the components and
circuitry of the airbag system and will indicate a
malfunction by coming on again.
See page for notes on airbags, see page63 64 for belt
tensioners and page 70 for infant and child seat
restraint.Fuel reserve and fuel cap placement warning
When the warning lamp (1) comes on after starting the
engine, or if it comes on while driving, it indicates that
the fuel level is down to the reserve quantity of
approximately 2.1 gal (8 liters).
The warning lamp blinks when the fuel cap is not
closed, or a fuel system leak has been detected.
Retighten cap and see if lamp goes out after restart and
next OBD selfcheck.
If the warning lamp continues to blink after closing the
fuel cap correctly, have the fuel system checked at your
authorized Mercedes-Benz Center as soon as possible.
Leaving the engine running and the fuel cap open can
also cause the “CHECK ENGINE” lamp to illuminate, see
page208.
Warning!
In the event a malfunction of the “SRS” is indicated
as outlined above, the “SRS” may not be
operational. For your safety, we strongly
recommend that you visit an authorized
Mercedes-Benz Center immediately to have the
system checked; otherwise the “SRS” may not be
activated when needed in an accident, which could
result in serious or fatal injury, or it might deploy
unexpectedly and unnecessarily which could also
result in injury.SRS
1
N54.30-2756-21
210
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Malfunction and indicator lamps
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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 page200if 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 page201
.ABS malfunction indicator lamp
The ABS malfunction indicator lamp in the
instrument cluster comes on with the
electronic key in steering lock position 2 and
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
switched off. When the voltage is above this value again,
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 page198 for notes on the antilock brake system
(ABS).
BAS
ESP
ABS
211
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Malfunction and warning messages
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BRAKE LINING WEAR
When this message appears during braking, it indicates
that the brake pads are worn down.
Have the brake system checked at your authorized
Mercedes-Benz Center as soon as possible.BRAKE FLUID
Line 1 Line 2
BRAKE LINING WEAR VISIT WORKSHOP!
Line 1 Line 2
BRAKE FLUID VISIT WORKSHOP!Wa r n i n g !
Driving with this message displayed can result in
an accident. Have your brake system checked
immediately. Don’t add brake fluid before checking
the brake system. Overfilling the brake fluid
reservoir can result in spilling brake fluid on hot
engine parts and the brake fluid catching fire. You
can be seriously burned.
2 C*
2 C*
* C = Category, see page 213
* C = Category, see page 213
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Malfunction and warning messages
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COOLANT (coolant level)
When this message appears while driving, the coolant
level has dropped below the required level. If no leaks
are noticeable and the engine temperature does not
increase, continue to drive to the nearest service station
and have coolant added to the coolant system.The low engine coolant level warning should not be
ignored. Extended driving with the symbol displayed
may cause serious engine damage not covered by the
Mercedes-Benz Limited Warranty.
Notes:
Do not drive without coolant in the cooling system. The
engine will overheat causing major engine damage.
Monitor the coolant temperature gauge while driving.
See page237for instructions on adding coolant.
Line 1 Line 2
COOLANT CHECK LEVEL!
Wa r n i n g !
Do not spill antifreeze on hot engine parts.
Antifreeze contains ethylene glycol which may
burn if it comes into contact with hot engine parts.
You can be seriously burned. 2
C*
* C = Category, see page 213
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Malfunction and warning messages
Te ch n ica l
data Instruments
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cluster displayPractical hints Car care Index LIGHTING SYSTEMWhen the message appears after starting the engine, or
if it comes on while driving, this indicates a failure in
the parking lamp, taillamp, stop lamp, or low beam
headlamp. See page256 for instructions on replacing
bulbs.
If an exterior lamp fails, the message will appear only
when that lamp is switched on.
If a brake lamp fails, the message will appear when
applying the brake and stays on until the engine is
turned off.
Note:
If additional lighting is installed (e.g. auxiliary
headlamps etc.) be certain to connect into the fuse
before the failure indicator monitoring unit order to
avoid damaging the system.
Line 1 Line 2
LAMP DEFECTIVE CHECK LAMPS!
DISPLAY DEFECTIVE VISIT WORKSHOP!
2 C*
* C = Category, see page 2132
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Malfunction and warning messages
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WA S H E R F L U I DWhen this message appears while the engine is
running, the level of the reservoir has dropped to
approx.
1/3 of the total volume. The reservoir should be
refilled with the prescribed mixture of MB Windshield
Washer Concentrate “S” and water or the Concentrate
and commercially available premixed windshield
washer solvent/antifreeze, depending on ambient
temperature, at the next opportunity. The reservoir for
the windshield and headlamp washer systems is located
in the engine compartment.
See windshield washer system on page238 for
instructions on adding washer fluid.
Line 1 Line 2
WASHER FLUID CHECK LEVEL!
3 C*
* C = Category, see page 213
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