MERCEDES-BENZ SLR CLASS 2005 Owners Manual

320 Practical hintsWhat to do if ...
During severe operating conditions and
stop-and-go city traffic, the coolant tem-
perature may rise close to 248°F (120°C).
Left display
Right display
Possible cause
Possible solution
Ï
Coolant
Stop, engine off!
The coolant is too hot.

Stop the vehicle and turn off the engine.

Only start the engine again after the message disap-
pears. You could otherwise damage the engine.
Warning!
G
Driving when your engine is badly over-
heated can cause some fluids which may
have leaked into the engine compartment to
catch fire. You could be seriously burned.
Steam from an overheated engine can cause
serious burns and can occur just by opening
the hood. Stay away from the engine if you
see or hear steam coming from it.
Turn off the engine, get out of the vehicle
and do not stand near the vehicle until the
engine has cooled down.
!The engine should not be operated with
the coolant temperature above 248°F
(120°C). Doing so may cause serious
engine damage which is not covered by
the Mercedes-Benz Limited Warranty.

321 Practical hints
What to do if ...
Left display
Right display
Possible cause
Possible solution
Ï
Coolant
Stop, engine off!
The poly-V-belt could be bro-
ken.

Stop immediately and check the poly-V-belt.
If it is broken:

Do not continue to drive. Otherwise the engine will over-
heat due to an inoperative water pump which may result
in damage to the engine. Notify an authorized
Mercedes-Benz Center.
If it is intact:

Do not continue to drive with this message displayed.
Doing so could result in serious engine damage that is
not covered by the Mercedes-Benz Limited Warranty.

Observe the coolant temperature gauge in the instru-
ment cluster (
page 29).

Drive immediately to the nearest authorized
Mercedes-Benz Center.
Coolant
Visit
workshop!
The cooling fan for the coolant
is malfunctioning.

Observe the coolant temperature gauge in the instru-
ment cluster (
page 29).

Have the fan replaced immediately.

322 Practical hintsWhat to do if ...Left display
Right display
Possible cause
Possible solution
Ï
Differential
overheated!
The differential oil is too hot.

Stop your vehicle safely immediately.

Do not drive any further.

Wait until the instrument cluster display has cleared.
Otherwise you could damage the rear differential.
!The differential warning should not be
ignored. Extended driving with the sym-
bol displayed could result in serious
rea r di ff e renti al da ma ge that i s not c ov-
ered by the Mercedes-Benz Limited
Warranty.

323 Practical hints
What to do if ...
Left display
Right display
Possible cause
Possible solution
.
Low beam
Left
The left low beam lamp is mal-
functioning.

Visit an authorized Mercedes-Benz Center as soon as
possible.
Low beam
Right
The right low beam lamp is mal-
functioning.

Visit an authorized Mercedes-Benz Center as soon as
possible.
High beam
Left
The left high beam lamp is mal-
functioning.

Visit an authorized Mercedes-Benz Center as soon as
possible.
High beam
Right
The right high beam lamp is
malfunctioning.

Visit an authorized Mercedes-Benz Center as soon as
possible.

324 Practical hintsWhat to do if ...Left display
Right display
Possible cause
Possible solution
.
Turn signal
Rear left
Back-up
lamp on!
The left rear turn signal lamp is
malfunctioning. A backup bulb
has been brought into use.

Visit an authorized Mercedes-Benz Center as soon as
possible.
Turn signal
Rear right
Back-up
lamp on!
The right rear turn signal lamp
is malfunctioning. A backup
bulb has been brought into use.

Visit an authorized Mercedes-Benz Center as soon as
possible.
Turn signal
Front left
The left front turn signal lamp is
malfunctioning.

Visit an authorized Mercedes-Benz Center as soon as
possible.
Turn signal
Front right
The right front turn signal lamp
is malfunctioning.

Visit an authorized Mercedes-Benz Center as soon as
possible.
Left turn signal
Mirror
The left turn signal in the side
mirror is malfunctioning. This
message will only appear if all
light emitting diodes have
stopped working.

Have the LEDs replaced as soon as possible.

325 Practical hints
What to do if ...
Left display
Right display
Possible cause
Possible solution
.
Marker lamp
Front left
The front left side marker lamp
is malfunctioning.

Replace the bulb as soon as possible.
Marker lamp
Front right
The front right side marker
lamp is malfunctioning.

Replace the bulb as soon as possible.
Marker lamp
Rear left
The rear left side marker lamp
is malfunctioning.

Replace the bulb as soon as possible.
Marker lamp
Rear right
The rear right side marker lamp
is malfunctioning.

Replace the bulb as soon as possible.
Right turn signal
Mirror
The right turn signal in the side
mirror is malfunctioning. This
message will only appear if all
light emitting diodes have
stopped working.

Have the LEDs replaced as soon as possible.

326 Practical hintsWhat to do if ...Left display
Right display
Possible cause
Possible solution
.
Brake lamp
Left
Back-up
lamp on!
The left brake lamp is malfunc-
tioning. This message will only
appear if a critical number of
LEDs have blown.

Visit an authorized Mercedes-Benz Center as soon as
possible.
Brake lamp
Right
Back-up
lamp on!
The right brake lamp is mal-
functioning. This message will
only appear if a critical number
of LEDs have blown.

Visit an authorized Mercedes-Benz Center as soon as
possible.
3rd brake light
The high mounted brake lamp
is malfunctioning.

Visit an authorized Mercedes-Benz Center as soon as
possible.
Brake light
Drive to
workshop!
Brake lamp illumination is de-
layed or lamp is permanently
on.

Visit an authorized Mercedes-Benz Center as soon as
possible.
License plate
lamp, L
The left license plate lamp is
malfunctioning.

Visit an authorized Mercedes-Benz Center as soon as
possible.
License plate
lamp, R
The right license plate lamp is
malfunctioning.

Visit an authorized Mercedes-Benz Center as soon as
possible.

327 Practical hints
What to do if ...
Left display
Right display
Possible cause
Possible solution
.
Front foglamp
Left
The left front fog lamp is mal-
functioning.

Visit an authorized Mercedes-Benz Center as soon as
possible.
Front foglamp
Right
The right front fog lamp is mal-
functioning.

Visit an authorized Mercedes-Benz Center as soon as
possible.
Rear foglamp
Left
The left rear fog lamp is mal-
functioning.

Visit an authorized Mercedes-Benz Center as soon as
possible.
Reverse lamp
Right
The right backup lamp is mal-
functioning.

Visit an authorized Mercedes-Benz Center as soon as
possible.
Reverse lamp
Left
The left backup lamp is mal-
functioning.

Visit an authorized Mercedes-Benz Center as soon as
possible.

328 Practical hintsWhat to do if ...Left display
Right display
Possible cause
Possible solution
.
Tail lamp
Left
Back-up
lamp on!
The left tail lamp is malfunc-
tioning. This message will only
appear if a critical number of
LEDs have blown.

Visit an authorized Mercedes-Benz Center as soon as
possible.
Tail lamp
Right
Back-up
lamp on!
The right tail lamp is malfunc-
tioning. This message will only
appear if a critical number of
LEDs have blown.

Visit an authorized Mercedes-Benz Center as soon as
possible.
Parking lamp
Front left
The left front parking lamp is
malfunctioning.

Visit an authorized Mercedes-Benz Center as soon as
possible.
Parking lamp
Front right
The right front parking lamp is
malfunctioning.

Visit an authorized Mercedes-Benz Center as soon as
possible.
Light sensor
Drive to
workshop!
The light sensor is malfunction-
ing. The headlamps switch on
automatically.

In the control system, set lamp operation to manual
(page 130).

Switch on headlamps using the exterior lamp switch.

Visit an authorized Mercedes-Benz Center immediately.

329 Practical hints
What to do if ...
Left display
Right display
Possible cause
Possible solution
±
Display malfunc-
tion
Visit
workshop!
Certain electronic systems are
unable to relay information to
the control system. The follow-
ing systems may have failed:

Coolant temperature gauge


Tachometer


Cruise control display

Have the electronic systems checked by an authorized
Mercedes-Benz Center immediately.
Fuel system
malfunction
Visit
workshop!
The fuel cooling system is
malfunctioning.

Visit an authorized Mercedes-Benz Center immediately.