2006 MERCEDES-BENZ SLR brake

309 Practical hints
What to do if ...
Text messagesLeft display
Right display
Possible cause/consequence
Possible solution
ABS
Malfunction
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workshop
The ABS has detected a malfunction
and has switched off. The ESP
® and
the BAS are also deactivated.
The electrohydraulic brake system is
still functioning normally but without
the ABS available.

Continue driving with added caution.
Wheels may lock during hard braking, re-
ducing steering capability.

Have the system checked at an authorized
Mercedes-Benz Center immediately.
Failure to follow these instructions increases
the risk of an accident.
Display malfunction
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workshop
The ABS or the ABS display is mal-
functioning.

Continue driving with added caution.
Wheels may lock during hard braking, re-
ducing steering capability.

Have the system checked at an authorized
Mercedes-Benz Center immediately.
Failure to follow these instructions increases
the risk of an accident.
Cruise control
– – –
You attempted to resume a stored
speed, but nothing is stored.

Store a speed (
page 198).
You attempted to set a speed below
20 mph (30 km/h).

Drive faster than 20 mph (30 km/h) and set
the speed (
page 198).

310 Practical hintsWhat to do if ...Left display
Right display
Possible cause/consequence
Possible solution
Cruise control
Drive to
workshop
Cruise control is malfunctioning.

Have the cruise control checked at an au-
thorized Mercedes-Benz Center.
ESP
Malfunction
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workshop
The ESP
® has detected a malfunc-
tion and switched off. The electrohy-
draulic brake system is still
functioning normally. The ABS may
not be operational.

Continue driving with added caution.

Have the system checked at an authorized
Mercedes-Benz Center immediately.
Failure to follow these instructions increases
the risk of an accident.
Display malfunction
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workshop
The ESP
® or the ESP
® display is mal-
functioning.

Continue driving with added caution.

Have the system checked at an authorized
Mercedes-Benz Center immediately.
Failure to follow these instructions increases
the risk of an accident.

311 Practical hints
What to do if ...
Left display
Right display
Possible cause/consequence
Possible solution
ESP
Unavailable
See Oper. Manual
The ESP
® is deactivated because the
power supply has been interrupted.
The electrohydraulic brake system is
still functioning normally but without
the ESP® available.

Synchronize the ESP
®. With the vehicle sta-
tionary, turn the steering wheel completely
to the left and then to the right.
Ensure that you can turn the steering wheel
to the stop without the wheels touching an
object (e.g. the road curb).
If the ESP
® message does not go out:

Continue driving with added caution.

Have the system checked at an authorized
Mercedes-Benz Center immediately.
Failure to follow these instructions increases
the risk of an accident.
!When synchronizing the ESP
®, make
sure you can turn the steering wheel in
both directions as far as it will go with-
out the wheels hitting any objects, e.g.
a road curb.

313 Practical hints
What to do if ...
Left display
Right display
Possible cause/consequence
Possible solution
Tire pres. monitor
reactivated
The tire pressure monitoring system is using
the current pressure values as the basis for
monitoring.
Tire pressure
displayed only
when ignition
is on
The tire inflation pressure is being checked.

Switch on the ignition (
page 40).
Tire pres.
monitor
temporarily
unavailable
The tire inflation pressure monitor is unable
to monitor the tire inflation pressure due to

the presence of several wheel sensors in
the vehicle.


excessive wheel sensor temperatures.


a nearby radio interference source.


unrecognized wheel sensors mounted.

Remove any extra wheel sensors
from the vehicle.
As soon as the causes of the malfunc-
tion have been removed, the tire pres-
sure monitoring system automatically
becomes active again.
Warning!
G
Do not drive with a flat tire. A flat tire affects
the ability to steer or brake the vehicle.
You may lose control of the vehicle. Contin-
ued driving with a flat tire will cause exces-
sive heat build-up and possibly a fire.

314 Practical hintsWhat to do if ...Left display
Right display
Possible cause/consequence
Possible solution
Reactivate tire
pressure monitor
after rectifying
pressure
There was a tire inflation pressure warning
message.
The yellow warning lamp for the tire pres-
sure monitoring system comes on and you
have not reactivated the system since the
last tire inflation pressure warning message.

Reactivate the tire pressure monitor-
ing system after correcting the tire
inflation pressure values
(page 269).
Tire pres.
monitor inoperative
Drive to workshop
The tire inflation pressure monitor is mal-
functioning.

Have the tire inflation pressure
monitor checked by an authorized
Mercedes-Benz Center.
A wheel without proper sensor was
installed.

Have the wheel checked.
Tire pressure
Please rectify
The tire inflation pressure is too low in one
or more tires.

Check and correct tire inflation pres-
sure as required (
page 266).
Warning!
G
Do not drive with a flat tire. A flat tire affects
the ability to steer or brake the vehicle.
You may lose control of the vehicle. Contin-
ued driving with a flat tire will cause exces-
sive heat build-up and possibly a fire.

315 Practical hints
What to do if ...
Symbol messagesLeft display
Right display
Possible cause/
consequence
Possible solution
<
Airbrake malfunc
The Airbrake locking mecha-
nism is malfunctioning.

Notify an authorized Mercedes-Benz Center
immediately.
#
Battery/
Alternator
Stop vehicle
The battery or the alternator is
malfunctioning.
The electrohydraulic brake sys-
tem requires electrical energy
and therefore has only limited
operation. Considerably great-
er brake pedal force is required
and the pedal travel is longer.
The stopping distance is in-
creased.

Stop the vehicle as soon as it is safe to do so. Adjust driv-
ing to be consistent with reduced braking responsive-
ness.

Notify an authorized Mercedes-Benz Center immediate-
ly.

Read and observe messages in the multifunction display.
Failure to follow these instructions increases the risk of an
accident.
Convenience func-
tions
Temporarily
Unavailable
The consumer battery has in-
sufficient voltage and can no
longer supply the convenience
functions such as power win-
dows.
The electrical consumers will come back online as soon as
on-board voltage is sufficient.

316 Practical hintsWhat to do if ...Left display
Right display
Possible cause/
consequence
Possible solution
#
Visit
workshop
The battery is no longer charg-
ing. Possible causes:

alternator malfunctioning


broken poly-V-belt
Do not forget that the brake
system requires electrical ener-
gy and may be operating with
restricted capability. Consider-
ably greater brake pedal force
is required and the pedal travel
is longer. The stopping distance
is increased.

Stop your vehicle immediately in a safe location and
check the poly-V-belt.
If it is broken:
Do not continue to drive. Otherwise the engine will
overheat due to an inoperative water pump which
may result in damage to the engine. Notify an
authorized Mercedes-Benz Center.
If it is in order:

Drive immediately to the nearest authorized
Mercedes-Benz Center. Adjust driving to be consis-
tent with reduced braking responsiveness.

Read and observe messages in the multifunction display.
There is a malfunction in the
electronic system.

Have the system checked at an authorized
Mercedes-Benz Center immediately.

317 Practical hints
What to do if ...
Left display
Right display
Possible cause/
consequence
Possible solution
;
(USA only)
3
(Canada only)
Brake fluid
below min. level
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workshop
There is insufficient brake fluid
in the reservoir.

Risk of accident! Stop the vehicle as soon as it
is safe to do so and notify an authorized
Mercedes-Benz Center immediately.
Do not add brake fluid! This will not solve the
problem.
Warning!
G
Driving with the message:Brake fluid
below min. level
Visit
workshopdisplayed can result in an accident. Have
your brake system checked immediately. Do
not add brake fluid before checking the
brake system. Overfilling the brake fluid res-
ervoir can result in spilling brake fluid on hot
engine parts and the brake fluid catching
fire. You can be seriously burned.
!If you find that the brake fluid in the
brake fluid reservoir has fallen to the
minimum mark or below, have the
brake system checked for brake pad
thickness and leaks.