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Practical hints
What to do if ...
Problem Possible cause/consequence Suggested solutions
3 (Canada only)
; (USA only)
The red brake warning lamp
comes on while driving and
you hear a warning sound.
You are driving with the parking brake set. ̈ Release the parking brake (୴ page 49).
3 (Canada only)
; (USA only)
The red brake warning lamp
comes on while the engine is
running and you hear a
warning sound.
Risk of accident!
ț There is a malfunction in the
electro-hydraulic brake system.
ț There is insufficient brake fluid in the
reservoir.
̈ Carefully stop the vehicle in a safe location
or as soon as it is safe to do so and contact
an authorized Mercedes-Benz Center. Do
not add brake fluid! This will not solve the
problem.
̈ Read and observe messages in the
multifunction display (
୴ page 314).
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.