2009 MERCEDES-BENZ CL COUPE light

Problem
Possible causes/consequences and
X XSolutions Vehicles with auto-
matic child seat recog-
nition on the front-
passenger seat*:
The
4 PASSENGER
AIRBAG OFF warning
lamp beside the instru-
ment cluster on the
right is lit. A special Mercedes-Benz child seat with automatic child seat rec-
ognition has been fitted to the front-passenger seat. The front-
passenger airbag has therefore been disabled as desired.
G
Risk of injury
There is no child seat fitted to the front-passenger seat. The auto-
matic child seat recognition* is malfunctioning.
X Remove electronic equipment from the front-passenger seat,
for example:
R
notebook
R mobile phone
R cards with transponders, e.g. ski passes or access passes
If the 4 PASSENGER AIRBAG OFF warning lamp is still lit:
X Visit a qualified specialist workshop. The yellow
9Blind
Spot Assist* indicator
lamps light up in the
exterior mirrors. G
Risk of accident
Blind Spot Assist* is not active at speeds below 30 km/h. In this
case, there will be no indication if there are vehicles in the Blind
Spot Assist monitoring range.
X You must therefore pay careful attention to the traffic condi-
tions.
X Check whether a lane change can be made without risk. The red
9Blind
Spot Assist* warning
lamp is lit in one of the
exterior mirrors. G
Risk of accident
Blind Spot Assist* has detected a vehicle within the Blind Spot
Assist monitoring range.
X You must therefore pay careful attention to the traffic condi-
tions.
X Check whether a lane change can be made without risk. The red
9Blind
Spot Assist* warning
lamp flashes in one of
the exterior mirrors. A
double warning tone
also sounds. You have switched on the turn signals.
G Risk of accident
Blind Spot Assist* has detected a vehicle within the Blind Spot
Assist monitoring range.
X You must therefore pay careful attention to the traffic condi-
tions.
X Check whether a lane change can be made without risk. 350
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Warning and indicator lamps in the instrument cluster
Problem
Possible causes/consequences and
X
X Solutions !
The yellow ABS
warning lamp is
lit while the
engine is run-
ning. G
Risk of accident
ABS (Anti-lock Brake System) is deactivated due to a fault. Other
systems, e.g. BAS (Brake Assist), BAS PLUS* (Brake Assist Plus),
ESP ®
(Electronic Stability Program), EBV (electronic brake-force
distribution), PRE-SAFE ®
, PRE-SAFE ®
Brake*, HOLD, hill start
assist, the adaptive brake lights and ESP ®
trailer stabilisation, are
also deactivated.
The brake system continues to function normally, but without the
functions listed above. Therefore, the wheels could lock if you
brake hard.
X Observe the additional messages in the multi-function display
(Y page 316).
X Drive on carefully.
X Visit a qualified specialist workshop. ·
The red distance
warning lamp*
lights up while
the vehicle is in
motion. G
Risk of accident
The distance to the vehicle in front is too small for the speed
selected.
X Increase the distance. ·
The red distance
warning lamp*
lights up while
the vehicle is in
motion. A warn-
ing tone also
sounds. G
Risk of accident
You are approaching a vehicle in front at too great a speed
X Be prepared to brake immediately.
X Pay careful attention to the traffic situation. You may have to
brake or take evasive action. G
Risk of accident
Distronic* or Distronic Plus* has detected a stationary obstacle
in your line of travel. The vehicle will not be braked automatically.
X Be prepared to brake immediately.
X Pay careful attention to the traffic situation. You may have to
brake or take evasive action. Troubleshooting
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Problem
Possible causes/consequences and
X XSolutions ÷
å
J
!
The yellow ESP
®
and ESP ®
OFF
warning lamps,
the red brake
system warning
lamp and the
yellow ABS
warning lamp
are lit while the
engine is run-
ning. G
Risk of accident
Electronic brake force distribution (EBV) is faulty. Other systems,
e.g. ABS, BAS, BAS PLUS*, ESP ®
, PRE-SAFE ®
, PRE-SAFE ®
Brake*, HOLD, hill start assist, the adaptive brake lights and
ESP ®
trailer stabilisation, are also unavailable. The brake system
continues to function normally, but without the functions listed
above. Therefore, the wheels could lock if you brake hard.
X Observe the additional messages in the multi-function display
(Y page 316).
X Drive on carefully.
X Visit a qualified specialist workshop. ÷
å
!
The yellow ESP
®
and ESP ®
OFF
warning lamps
and the yellow
ABS warning
lamp are lit while
the engine is
running. A warn-
ing tone also
sounds. G
Risk of accident
EBV is faulty. Other systems, e.g. ABS, BAS, BAS PLUS*, ESP ®
,
PRE-SAFE ®
, PRE-SAFE ®
Brake*, HOLD, hill start assist, the adap-
tive brake lights and ESP ®
trailer stabilisation, are also unavaila-
ble. The brake system continues to function normally, but without
the functions listed above. Therefore, the wheels could lock if you
brake hard.
X Observe the additional messages in the multi-function display
(Y page 316).
X Drive on carefully.
X Visit a qualified specialist workshop. ÷
å
!
The yellow ESP
®
and ESP ®
OFF
warning lamps
and the yellow
ABS warning
lamp are lit while
the engine is
running. G
Risk of accident
ABS and ESP ®
are faulty. Other systems, e.g. BAS, BAS PLUS*,
PRE-SAFE ®
, PRE-SAFE ®
Brake*, HOLD, hill start assist, the adap-
tive brake lights and ESP ®
trailer stabilisation, are also unavailable
due to a malfunction. The brake system continues to function nor-
mally, but without the functions listed above. Therefore, the
wheels could lock if you brake hard.
X Observe the additional messages in the multi-function display
(Y page 316).
X Drive on carefully.
X Visit a qualified specialist workshop. 352
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Problem
Possible causes/consequences and
X
X Solutions ÷
The yellow ESP ®
warning lamp
flashes while the
vehicle is in
motion. G
Risk of accident
ESP ®
or traction control has intervened because there is a risk of
skidding or at least one wheel has started to spin.
Cruise control or Distronic Plus* is deactivated.
X Only depress the accelerator pedal as far as necessary when
pulling away.
X Release the accelerator pedal while you are driving.
X Adapt your driving style to suit the road and weather conditions.
X Do not deactivate ESP ®
.
Exceptions: (Y page 51) å
The yellow ESP ®
OFF warning
lamp is lit while
the engine is
running. G
Risk of accident
ESP ®
and ESP ®
trailer stabilisation are deactivated. ESP ®
will not
stabilise the vehicle if it starts to skid or if a wheel starts to spin.
X Reactivate ESP ®
.
Exceptions: (Y page 51)
X Adapt your driving style to suit the road and weather conditions. ÷
å
The yellow ESP
®
and ESP ®
OFF
warning lamps
are lit while the
engine is run-
ning. G
Risk of accident
ESP ®
, BAS, BAS PLUS*, PRE-SAFE ®
, HOLD, hill start assist, the
adaptive brake lights and ESP ®
trailer stabilisation are unavailable
due to a malfunction. ESP ®
will not stabilise the vehicle if it starts
to skid or if a wheel starts to spin.
The brake system continues to function normally, but without the
functions listed above.
X Observe the additional messages in the multi-function display
(Y page 316).
X Drive on carefully.
X Visit a qualified specialist workshop. 6
The red SRS
warning lamp is
lit while the
engine is run-
ning. G
Risk of injury
There is a malfunction in the restraint system. The airbags or belt
tensioners may either be triggered unintentionally or, in the event
of an accident, not be triggered at all.
X Visit a qualified specialist workshop immediately. Troubleshooting
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Problem
Possible causes/consequences and
X XSolutions !
The red indicator
lamp for the
electric parking
brake flashes
and/or the yel-
low warning
lamp for the
electric parking
brake lights up. G
Risk of accident
The electric parking brake is temporarily malfunctioning or defec-
tive.
X Observe the additional messages in the multi-function display
(Y page 316). J
The red brake
system warning
lamp comes on
while the engine
is running. A
warning tone
also sounds. G
Risk of accident
There is insufficient brake fluid in the fluid reservoir.
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions. Do not continue driving
under any circumstances.
X Consult a qualified specialist workshop immediately.
X Observe the additional messages in the multi-function display
(Y page 316).
Do not top up the brake fluid. This will not rectify the fault. ;
The yellow
engine diagnos-
tics warning
lamp lights up
while the engine
is running. There may be a fault, for example:
R
in the engine management
R in the ignition system
R in the exhaust system
R in the ignition system
The emission limit values may be exceeded and the engine can
run in emergency mode.
X Have the vehicle checked as soon as possible at a qualified
specialist workshop. h
The yellow tyre
pressure moni-
tor* warning
lamp is on. G
Risk of accident
The tyre pressure monitor* has detected a sudden or significant
pressure loss in at least one of the tyres.
X Stop the vehicle without making any sudden steering or braking
manoeuvres. Pay attention to traffic conditions as you do so.
X Observe the additional messages in the multi-function display
(Y page 316). 354
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Problem
Possible causes/consequences and
X
X Solutions 7
The red seat belt
warning lamp
lights up for 6
seconds after
the engine is
started 39
. The seat belt warning lamp reminds the driver and front passenger
to fasten their seat belts.
X Fasten your seat belt (Y page 191). 7
After the engine
starts, a warning
tone sounds for
up to 6 sec-
onds39
. G
Risk of injury
The driver's seat belt is not fastened.
X Fasten your seat belt (Y page 191).
The warning tone ceases. 7
The red seat belt
warning lamp
lights up after
the engine
starts, as soon
as the driver's
door or the
front-passenger
door is closed. G
Risk of injury
The driver or front passenger have not fastened their seat belt.
X Fasten your seat belt (Y page 191).
The warning lamp goes out. G
Risk of injury
There are objects on the front-passenger seat
X Remove the objects from the front-passenger seat and stow
them safely.
The warning lamp goes out. 7
The red seat belt
warning lamp
flashes and an
intermittent
audible warning
sounds. G
Risk of injury
The driver or front passenger have not fastened their seat belt. At
the same time, you are driving faster than 25 km/h or have briefly
driven faster than 25 km/h.
X Fasten your seat belt (Y page 191).
The warning lamp goes out and the intermittent audible warning
ceases. G
Risk of injury
There are objects on the front-passenger seat At the same time,
you are driving faster than 25 km/h or have briefly driven faster
than 25 km/h.
X Remove the objects from the front-passenger seat and stow
them safely.
The warning lamp goes out and the intermittent audible warning
ceases. 39
Only for certain countries. Troubleshooting
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Problem
Possible causes/consequences and
X XSolutions The yellow reserve fuel
warning lamp lights up
while the engine is run-
ning. The fuel level has fallen below the reserve range. The operation of
the auxiliary heating* can no longer be guaranteed.
X
Refuel at the nearest filling station. Warning tones
Problem
Possible causes/consequences and
X XSolutions The anti-theft warning
alarm* is triggered. You have opened the vehicle with the anti-theft alarm system still
activated*.
X
Switch off the alarm (Y page 55).You hear a warning
tone. A message appears in the multi-function display.
X
See the explanations for the display message (Y page 316).You are driving with the electric parking brake applied.
X
Release the electric parking brake. The lights are still switched on when you leave the vehicle.
X
Turn the light switch to $orc.
or
X If the rear foglamp is switched on: press the light switch in to
the stop. G
Risk of injury
The driver or front passenger have not fastened their seat belt.
X Fasten your seat belt (Y page 191).You hear a warning
tone.
The
· red distance warning lamp* lights up while the vehicle
is in motion.
X Observe the explanations for the distance warning lamp*
(Y page 351). You hear a dual warning
tone.
The
9 red Blind Spot Assist* warning lamp flashes in one of
the exterior mirrors.
X Observe the explanations for the Blind Spot Assist* warning
lamp (Y page 350). 356
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Engine
Problem
Possible causes/consequences and
X XSolutions The engine will not
start. You can hear the
starter motor operat-
ing. R
There is a malfunction in the engine electronics.
R There is a malfunction in the fuel supply.
R The on-board voltage is too low because the starter battery is
too weak or discharged.
X Before the next start attempt, turn the key back to position 0
(Y page 182) in the ignition lock or press the Start/Stop but-
ton* until all the indicator lights in the instrument cluster have
gone out.
X Try to start the engine again (Y page 202). When doing so,
remember that excessively long and frequent attempts to start
the engine will drain the battery.
If the engine does not start after several attempts:
X Consult a qualified specialist workshop. The engine will not
start. You cannot hear
the starter motor. The on-board voltage is too low because the starter battery is too
weak or discharged.
X
Jump-start the vehicle (Y page 384).
If the engine does not start despite attempting to jump-start it:
X Consult a qualified specialist workshop. The starter motor was exposed to a thermal load that was too high.
X
Allow the starter motor to cool down for approximately two
minutes.
X Try to start the engine again.
If the engine still does not start:
X Consult a qualified specialist workshop. The engine is not run-
ning smoothly and is
misfiring. There is a malfunction in the engine electronics or a mechanical
component of the engine control unit.
X
Only depress the accelerator pedal slightly.
X Have the cause rectified immediately at a qualified specialist
workshop.
Otherwise, non-combusted fuel may get into the catalytic con-
verter and damage it. 358
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