Booming noise at the rear that changes with speed and a slight judder when driving slowly (Audi Q4 e-tron, P18F100)

Engine / equipment

Audi Q4 e-tron and Q4 e-tron quattro

Period mentioned

2022–2023

Symptoms

A low booming noise is heard at the rear that depends on speed, and the car judders slightly when driving slowly, forwards and in reverse. In neutral the noise goes away. P18F100 may be stored in the electric drive.

Possible cause described

According to Audi bulletin 2068250 (November 2022), metal particles at a wheel speed sensor, the hub, the bearing or the drive shaft give false wheel-speed signals; the electric drive limits its function (P18F100) and the booming noise appears. The particles may be in places that cannot be seen.

Check for the garage

The garage reads P18F100 in the electric drive unit and removes the wheel speed sensor, hub, bearing and drive shaft of the affected wheel to find and clean off the metal particles, replacing whatever is damaged.

Cost cited in the source

No verified estimate; ask the garage for a quote.A rough figure from the original database, not an up-to-date quote.

Sources from the original database