The Antilock Braking System (ABS) prevents
locking of the wheels during braking.
The vehicle maintains its steerability even during
emergency braking, which increases the active
driving safety.
ABS is operational every time you start the engine.
Brake assistant
The Brake Assistant effects maximum
Fuel tank leakage diagnosis module
The fuel system leak test is regularly conducted when the engine is switched
off. Here, the following processes
are executed during the DME run-down period:
Initial situation
During normal engine operation, the switchover valve in the diagnosis module
is in t