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What to do if …
295
Problem Possible cause/consequence Suggested solutions
; (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 engaged.
X
Release the parking brake.
; (USA only)
3 (Canada only)
The red brake warning lamp
comes on while the engine is run-
ning and you hear a warning
sound.
There is a malfunction in the elec-
tro-hydraulic brake system.
There is insufficient brake fluid in
the reservoir.
X
Risk of accident! Do not drive any further. Stop the vehicle in a safe
location as soon as it is safe to do so.
X
Engage the parking brake.
X
Read and observe messages that may appear in the multifunction
display (Y page 255).
X
Contact an authorized Mercedes-Benz Center. Do not add brake
fluid! This will not solve the problem.
G
Warning!
Driving with the brake warning lamp illuminated 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 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.
Practical hints
Z