MERCEDES-BENZ SLR 2006 R199 Owner's Manual

320 Practical hintsWhat to do if ...Left display
Right display
Possible cause/
consequence
Possible solution
;
(USA only)
3
(Canada only)
Reduced
brake effect
Visit workshop
The electrohydraulic
brake system is in emer-
gency operation mode.
Considerably greater
brake pedal force is re-
quired and the pedal
travel is longer. The stop-
ping distance is in-
creased.

Continue driving with added caution.

Visit an authorized Mercedes-Benz Center immedi-
ately. Adjust driving to be consistent with reduced
braking responsiveness.
Failure to follow these instructions increases the risk of
an accident.
Increased
stopping distance
Visit workshop
Warning!
G
Driving while these messages are displayed
can result in an accident. Have your brake
system checked immediately.
If there is a malfunction in the electrohy-
draulic brake system, we recommend that
the vehicle be transported with all wheels
off the ground using flatbed or appropriate
wheel lift/dolly equipment.
A tow bar must be used if circumstances do
not permit the use of the recommended
towing methods and the vehicle requires
towing with all four wheels on the ground.
Towing the vehicle with all four wheels on
the ground is only permissible for distances
up to 30 miles (50 km) and at a speed not to
exceed 30 mph (50 km/h). For more infor-
mation, see “Towing the vehicle”
(page 360).
If the electrohydraulic brake system enters
its emergency operation mode, the driver
must apply significantly greater brake pedal
pressure and depress the pedal much fur-
ther than normal to obtain braking effect.
If necessary, apply full pressure to the brake
pedal. Stopping distance is increased!

321 Practical hints
What to do if ...
Left display
Right display
Possible cause/
consequence
Possible solution
;
(USA only)
3
(Canada only)
Reduced
brake effect
Start engine
The battery has insufficient
voltage and cannot supply suffi-
cient power to the electrohy-
draulic brake system.

Start the engine.
As soon as the engine is running, the message
disappears.
Increased
stopping distance
Start engine
Warning!
G
Inhalation of exhaust gas is hazardous to
your health. All exhaust gas contains carbon
monoxide, and inhaling it can cause uncon-
sciousness and possible death.
Do not run the engine in confined areas
(such as a garage) which are not properly
ventilated.

322 Practical hintsWhat to do if ...Left display
Right display
Possible cause/
consequence
Possible solution
;
(USA only)
3
(Canada only)
Brakes overheated
Drive on, but with
even greater care
The brake system is overheated
due to an excessive load on the
brakes.

Relieve the load on the brake system.

Drive more smoothly and think ahead to avoid
unnecessary braking.

When driving down steep grades, shift into a
lower gear to use the engine’s braking power
(page 170).

Cautiously continue driving so that the air
stream will cool down the brakes.
Release
parking brake
You are driving with the parking
brake set.

Release the parking brake (
page 50).
Service brake
Visit
workshop
There are malfunctions, but the
electrohydraulic brake system
is operating normally.

Visit an authorized Mercedes-Benz Center im-
mediately.

323 Practical hints
What to do if ...
Left display
Right display
Possible cause/
consequence
Possible solution
B
Coolant
Check level
The coolant level is too low.

Add coolant (
page 250).

If you have to add coolant frequently, have the cooling
system checked by an authorized Mercedes-Benz Center
immediately.
Warning!
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.
!Do not ignore the low engine coolant
level warning. Extended driving with
the message and symbol displayed
may cause serious engine damage not
covered by the Mercedes-Benz Limited
Warranty.
Do not drive without sufficient amount
of coolant in the cooling system. The
engine will overheat causing major
engine damage.

324 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/
consequence
Possible solution
Ï
Coolant
Stop, put engine
off
The coolant is too hot.

Stop the vehicle in a safe location and turn off the en-
gine.

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.

325 Practical hints
What to do if ...
Left display
Right display
Possible cause/
consequence
Possible solution
Ï
Coolant
Stop, put engine
off
The poly-V-belt could be
broken.

Stop the vehicle in a safe location and immediately turn
off the engine.

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.

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

Stop your vehicle immediately in a safe location.

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.

327 Practical hints
What to do if ...
Left display
Right display
Possible cause/
consequence
Possible solution
G
Display malfunc-
tion
Visit
workshop
The displays for several sys-
tems have malfunctioned.
Some systems themselves may
also have malfunctioned.

Continue driving with added caution.
When the display is malfunctioning, warnings and mal-
function messages might not be displayed.

Have the electronic systems checked by an authorized
Mercedes-Benz Center immediately.
Failure to follow these instructions increases the risk of an
accident.
±
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.
J
Door open
You are attempting to drive
with one or more doors open.

Close the doors.

328 Practical hintsWhat to do if ...Left display
Right display
Possible cause/
consequence
Possible solution
±
Engine
Service
There may be a malfunction in
the

fuel injection system


ignition system


exhaust system


fuel system

Have the engine checked by an authorized
Mercedes-Benz Center immediately.
:
Engine oil pressure
Visit
workshop
There is no oil in the engine.
There is a danger of engine
damage.

Stop your vehicle immediately in a safe location.

Switch off the engine.

Notify an authorized Mercedes-Benz Center
immediately.
!The engine oil level warning should not
be ignored. Extended driving with the
symbol displayed could result in seri-
ous engine damage that is not covered
by the Mercedes-Benz Limited
Warranty.

329 Practical hints
What to do if ...
Left display
Right display
Possible cause/
consequence
Possible solution
±
Fuel system
malfunction
Visit
workshop
The fuel cooling system is
malfunctioning.

Visit an authorized Mercedes-Benz Center immediately.
A
Reserve fuel
The fuel level has fallen into the
reserve range.

Refuel at the next gas station (
page 241).
Check
fuel cap
See Oper. Manual
A loss of pressure has been de-
tected in the fuel system. The
fuel cap may not be closed
properly or the fuel system may
be leaky.

Check the fuel cap (
page 241).
If it is not closed properly:

Close the fuel cap.
If it is closed properly:

Have the fuel system checked by an authorized
Mercedes-Benz Center.
ì
Tel
Enter PIN
You have not yet entered your
PIN in you telephone.

Enter the PIN for your SIM card.
O
Close
hood
You are driving with the hood
open.

Close the hood (
page 244).
I
Remove
key
You have forgotten to remove
the SmartKey.

Remove the SmartKey from the starter switch.
Replace
key
No additional code available for
the SmartKey.

Have the SmartKey checked. Notify an authorized
Mercedes-Benz Center.