Operation Manual

345
Practical hints
What to do if …
Problem Possible cause/consequence 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 parking brake set. Release the parking brake
(
page 55).
; (USA only)
3 (Canada only)
The red brake warning lamp
comes on when the engine is
running and you hear a warn-
ing sound.
There is a malfunction in the
electro-hydraulic brake system.
There is insufficient brake fluid in the
reservoir.
Read and observe messages in the
display (
page 359).
Risk of accident! 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.
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 result in spilling brake fluid on hot
engine parts and the brake fluid catching
fire. You could 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.