Brakes; Warning Lamp - Mercedes-Benz CLS Operator's Manual

Warning and indicator lamps in the instrument cluster
Safety systems
Problem
$ (USA only)
J (Canada only)
The red brake system
warning lamp comes on
while the engine is
running. A warning tone
also sounds.
$ (USA only)
J (Canada only)
The red brake system
warning lamp comes on
while the engine is
running. A warning tone
also sounds.
Possible causes/consequences and M Solutions
G
WARNING
The brake boosting effect is malfunctioning and the braking
characteristics 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 (
X
Consult a qualified specialist workshop.
X
Observe the additional display messages in the multifunction
display.
There is not enough brake fluid in the brake fluid reservoir.
G
WARNING
The braking effect 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 (
X
Do not add brake fluid. Adding more will not remedy the
malfunction.
X
Consult a qualified specialist workshop.
X
Observe the additional display messages in the multifunction
display.
Y page 157).
Y page 157).
Z
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