General Notes on Anti-Lock Braking System (ABS)

General notes on anti-lock braking system (ABS)
The following versions of ABS are possible:
^ ABS
^ ABS/EDL
^ ABS/EDL with ASR
^ ABS/EDL/ASR with electronic stabilization program (ABS/EDL/ASR/ESP)

The ABS brake system is divided diagonally. The servo-assist is affected pneumatically by the vacuum brake servo unit.

Malfunctions on the ABS influence the brake system and servo assist. A braking behavior change should be checked. When the ABS warning lamp comes on the rear wheels can lock-up early when braking!





ABS layout.





"The hydraulic unit - a - and control module - b - form one unit and must always be replaced together if a hydraulic malfunction exists. Electrical failures should only have the electronic control module replaced.