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Practical hints
What to do if …
Problem Possible cause Suggested solution
3 (Canada only)
; except Canada)
The red brake warning lamp
lights up while driving and you
hear a warning sound.
The red brake warning lamp
lights up while driving
You are driving with the parking brake set,
or
there is a malfunction in the SBC brake system.
There is insufficient brake fluid in the reservoir.
̈ Release the parking brake
(
୴ page 41).
̈ Read and observe messages in the
display (
୴ page 257).
̈ Risk of accident! Carefully stop the
vehicle and notify an authorized
Mercedes-Benz Center. Do not add
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. Don’t add
brake fluid before checking the brake sys-
tem.
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.