Mercedes-Benz 2008 S550 Operator's Manual page 602

Problem
;
The red brake warning
(USA only) lamp comes on while the
engine is running and an
3
acoustic warning sounds.
(Canada only)
Warning!
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 en-
gine parts and the brake fluid catching fire.
You can be seriously burned.
Possible cause/consequence
There is insufficient brake fluid in the reser-
voir.
!
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.
Practical hints
What to do if ...?
Suggested solution
Risk of accident!
Carefully stop the vehicle in a safe loca-
tion or as soon as it is safe to do so.
Engage the electronic parking brake
( page 395).
Contact an authorized Mercedes-Benz
Center.
Do not add brake fluid! This will not
solve the problem.
601