Mercedes-Benz 2008 M-Class Operator's Manual page 431

Practical hints
What to do if ...
Display symbol Display message
;
(USA only) Check
Brake Fluid Level
3
(Canada only)
Warning!
Check Brake
Driving with the message
Fluid Level
displayed can result in an
accident. Have your brake system checked
immediately. 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.
430
Possible cause/consequence Possible solution
There is insufficient brake fluid
in the reservoir.
!
If you find that the brake fluid in the brake
G
fluid reservoir has fallen to the minimum mark or
below, have the brake system checked for brake
pad thickness and leaks.
Risk of accident! Stop the vehicle in a
safe location or as soon at is safe to do
so.
Apply the parking brake ( page 65).
Contact an authorized Mercedes-Benz
Light Truck Center. Do not add brake
fluid! This will not solve the problem.