Mercedes-Benz S 450 4MATIC Operator's Manual page 675

Practical hints
What to do if ...?
Display
Inoperative
See Oper. Manual
674
Possible cause/consequence
S 600 and S 65 AMG only:
® ®
ESP as well as PRE-SAFE are switched off
due to a malfunction. In addition, the v
and ; (USA only) or 3(Canada only)
warning lamps come on in the instrument
cluster.
Brake force assistance is impaired and is
sustained through an electric substitute
function as long as the engine is running.
The brake system continues to function
normally. You will feel a pulsating effect at
the brake pedal while braking.
®
BAS Plus* and PRE-SAFE Brake* are also
not available.
Possible solution
Continue driving with added caution.
Have the system checked at an authorized
Mercedes-Benz Center as soon as possible.
Failure to follow these instructions increases the
risk of an accident.