Audi A7 2018-2020 ABS Pump C123EF0 – REPAIR SERVICE 4K0907379M / 0265956621

Common Problems

The C123EF0 fault code often appears in Audi vehicles. When this issue happens, the ABS warning light turns on. The traction control light may also activate at the same time. Drivers usually see the error message: ‘Brake system fault stop carefully.’

This fault shuts down the ABS system, which removes emergency braking. As a result, the car relies only on standard braking. This increases risks, especially in bad weather or during emergencies. Fixing the problem quickly helps keep the car safe and prevents further damage.

Common Affected Part Numbers

This fault is often connected to these part numbers:
4K0907379M, 4K0 907 379 M, 4K0907379R, 4K0 907 379 R, 0265956621.