Mercedes-Benz CLS 2012, Owner'S Manual

Page: 281 / 405

Safety systems
Problem Possible causes/consequences and M Solutions
J
The yellow brake sys-
tem warning lamp
lights up while the
engine is running.
G WARNING
The brake system is malfunctioning and the braking characteris-
tics may be affected.
There is a risk of an accident.
X
If the multifunction display shows a display message, please
observe this.
X
Drive on carefully.
X
Visit a qualified specialist workshop.
J
The red brake system
warning lamp comes on
while the engine is run-
ning. A warning tone
also sounds.
G
WARNING
The brake boosting effect is malfunctioning and the braking char-
acteristics may be affected.
There is a risk of an accident.
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
Secure the vehicle against rolling away (
Y
page 165).
X
Consult a qualified specialist workshop.
X
Observe the additional display messages in the multifunction
display.
J
The red brake system
warning lamp comes on
while the engine is run-
ning. A warning tone
also sounds.
There is insufficient brake fluid in the brake fluid reservoir.
G
WARNING
The braking efficiency may be impaired.
There is a risk of an accident.
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
Secure the vehicle against rolling away (
Y
page 165).
X
Do not top up the brake fluid. Topping up will not rectify the
fault.
X
Consult a qualified specialist workshop.
X
Observe the additional display messages in the multifunction
display.
278
Warning and indicator lamps in the instrument cluster
On-board
computer
and
displays