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Practical hints
What to do if …
Problem Possible cause/conse-
quence
Suggested solution
; (USA only)
3 (Canada only)
The red brake warning lamp
comes on while driving and
you hear a warning sound.
You are driving with the park-
ing brake set.
̈ Release the parking brake.
̈ Observe the additional message in
the multifunction display.
The red brake warning lamp
comes on while the engine is
running and you hear a warn-
ing sound.
There is insufficient brake fluid
in the reservoir.
̈ Risk of accident! Do not drive any fur-
ther. Consult a Mercedes-Benz
Service Center. Under no circum-
stances should you top up the brake
fluid. This will not solve the problem.
Warning! G
Driving with the brake warning lamp illumi-
nated can result in an accident. Have your
brake system checked immediately if the
brake warning lamp stays on. Do not add
brake fluid before checking the brake
system.
Overfilling the brake fluid reservoir can re-
sult 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.