General Information

WARNING: This page is about a different car, the 2024 Audi S6 and 2024 Audi A6 Quattro. However, it is still accessible from the selected car via links, so may be relevant.

ABS malfunctions do not affect the brake system and the booster. The conventional brake system remains operative even without ABS. A change in the braking behavior must be expected. When the ABS indicator lamp comes on the rear wheels can lock-up early when braking!
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 informatoin, the system can be damaged and vehicle safety could be compromised.
Before servicing the ABS, determine the cause of the damage using OBD.
When handling brake fluid, observe the relevant safety precautions and notes. Refer to BRAKE FLUID GENERAL INFORMATION .
Bleed the brake system using the Bleeding Equipment:VAS 6860 or Brake Charger/Bleeder Unit:VAS 5234 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, make sure that an ABS-controlled brake test is performed at least once (pulsation must be felt at the brake pedal).