Anti-Lock Braking System (Abs) Repair Information
WARNING: This page is about a different variant/trim than selected.
ABS malfunctions do not affect the brake system and the booster. The conventional brake system remains operative even without ABS. A change in braking behavior should be checked. When the ABS indicator lamp comes on the rear wheels can lock-up early when braking!
WARNING:
- The ABS is generally maintenance-free.
- Testing, assembly, and repair work may only be performed by qualified personnel.
- By not observing the points described in the repair information, the system can be damaged and vehicle safety could be compromised.
All Vehicles
- Before performing repair work on the ABS, determine the cause of the damage using OBD.
- When installing a new hydraulic control module, the coding must be checked using the Vehicle Diagnostic Tester.
- Disconnect the battery ground cable when the ignition is switched off.
- When handling brake fluid, observe the relevant safety precautions and notes.
- Bleed the brake system with the : VAS5234 for all work that requires opening the hydraulic system. High and low pressure testing should also be performed on the brake system.
- During the final road test, ensure that a ABS -controlled braking is performed at least once (pulsation must be felt at the brake pedal). Use the Vehicle Diagnostic Tester.