2005 MERCEDES-BENZ SLR CLASS brake

315 Practical hints
What to do if ...
Left display
Right display
Possible cause
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 SBC brake
system.

Start the engine.
As soon as the engine is running, the message
disappears.
Increased
braking 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 lead to death.
Do not run the engine in confined areas
(such as a garage) which are not properly
ventilated.

316 Practical hintsWhat to do if ...Left display
Right display
Possible cause
Possible solution
;
(USA only)
3
(Canada only)
Brakes overheated!
Drive carefully
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 49).
Service brake
Visit
workshop!
There are malfunctions, but the
SBC brake system is operating
normally.

Visit an authorized Mercedes-Benz Center im-
mediately.

317 Practical hints
What to do if ...
Left display
Right display
Possible cause
Possible solution
2
Brake lining wear!
Visit
workshop!
The brake pads have reached
their wear limit.

Have the brake pads replaced immediately.
!Brake pad thickness must be visually
checked by a qualified technician at the
intervals specified in the Maintenance
Booklet.
Warning!
G
Have brake pad replacement and other work
on the SBC brake system carried out by
qualified technicians only. Contact your
Mercedes-Benz Center for further informa-
tion. The SBC brake system must be deacti-
vated prior to working on the system. High
pressure is intermittently built up in the sys-
tem as part of its automatic self-test. In ad-
dition, the system is automatically activated
when the vehicle is unlocked by remote con-
trol, when the driver or passenger door is
opened, when the SmartKey in the starter
switch is turned to position1, when the
brake pedal is depressed or when the park-
ing brake is released.
Failure to deactivate the system prior to
maintenance will cause brake pistons to ex-
tend and brake fluid to leak, which may re-
sult in injuries (contusions and acid burns),
see “SBC brake system” (
page 84).

318 Practical hintsWhat to do if ...Left display
Right display
Possible cause
Possible solution
<
Seat belt system
Drive to
workshop!
The seat belt system is mal-
functioning.

Visit an authorized Mercedes-Benz Center immedi-
ately.
O
Close
hood!
You are driving with the hood
open.

Close the hood (
page 243).
Ê
Close
trunk lid!
This message will appear when-
ever the trunk lid is open.

Close the trunk lid (
page 102).
J
Door open!
You are attempting to drive
with one or more doors open.

Close the doors.
<
Airbrake malf.!
The Airbrake locking mecha-
nism is malfunctioning.

Notify an authorized Mercedes-Benz Center
immediately.

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.

331 Practical hints
What to do if ...
Left display
Right display
Possible cause
Possible solution
H
Tire pressure
Caution
tire defect!
The tire inflation pressure in
one or more tires is dropping.

Carefully bring the vehicle to a halt, avoiding abrupt
steering and braking maneuvers. Observe the traffic
situation around you.

Temporarily repair tire using TIREFIT (
page 349) or
contact Roadside Assistance. If tire cannot be tempo-
rarily repaired using TIREFIT, contact Roadside Assis-
tance.

Have the damaged wheel repaired or replaced at an
authorized Mercedes-Benz Center.
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.
Continued driving with a flat tire will cause
excessive heat build-up and possibly a fire.
Warning!
G
Have worn or damaged tires replaced in
pairs (front pair or rear pair). Otherwise the
driving stability of the vehicle will be ad-
versely affected.

332 Practical hintsWhat to do if ...Left display
Right display
Possible cause
Possible solution
H
Tire pressure
Check
tires!
The tire inflation pressure in
one or more tires is already be-
low the minimum value.

Carefully bring the vehicle to a halt, avoiding abrupt
steering and braking maneuvers. Observe the traffic
situation around you.

Check the tires. If no damage visible, check and correct
tire inflation pressure as required.

Temporarily repair tire using TIREFIT (
page 349) or
contact Roadside Assistance. If tire cannot be tempo-
rarily repaired using TIREFIT, contact Roadside Assis-
tance.

Have the damaged wheel repaired or replaced at an
authorized Mercedes-Benz Center.
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.
Continued driving with a flat tire will cause
excessive heat build-up and possibly a fire.
Warning!
G
Have worn or damaged tires replaced in
pairs (front pair or rear pair). Otherwise the
driving stability of the vehicle will be ad-
versely affected.

335 Practical hints
What to do if ...
Left display
Right display
Possible cause
Possible solution
H
Tire pressure, RL
Caution
tire defect!
The left rear tire is rapidly de-
flating.

Carefully bring the vehicle to a halt, avoiding abrupt
steering and braking maneuvers. Observe the traffic
situation around you.

Temporarily repair tire using TIREFIT (
page 349) or
contact Roadside Assistance. If tire cannot be tempo-
rarily repaired using TIREFIT, contact Roadside Assis-
tance.

Have the damaged wheel repaired or replaced at an
authorized Mercedes-Benz Center.
Tire pressure, RL
Check
tires!
The left rear tire inflation pres-
sure is low.

Carefully bring the vehicle to a halt.

Check the tires. If no damage visible, check and correct
tire inflation pressure as required.

If necessary, have the wheel repaired or replaced at an
authorized Mercedes-Benz Center.
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.
Continued driving with a flat tire will cause
excessive heat build-up and possibly a fire.
Warning!
G
Have worn or damaged tires replaced in
pairs (front pair or rear pair). Otherwise the
driving stability of the vehicle will be ad-
versely affected.