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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.
There is insufficient brake fluid in the
reservoir.
Risk of accident!
̈ Carefully stop the vehicle in a safe
location or as soon as it is safe to do
so.
̈ Apply the parking brake (୴ page 62).
̈ Do not drive any further.
̈ Contact an authorized
Mercedes-Benz Light Truck Center.
Do not add brake fluid! This will not solve
the problem.
̈ Read and observe messages in the
multifunction display (
୴ page 338).
Warning! G
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 catch-
ing 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.