What this noise usually means.
A clicking or knocking sound when turning the steering wheel — particularly under acceleration, on full lock, or in tight car parks — usually points to the constant velocity (CV) joint on the driven wheels.
Common causes.
- Worn outer CV jointThe most common cause; clicking gets louder on full lock or when accelerating mid-turn.
- Damaged CV gaiterA torn rubber boot has allowed grease to escape and dirt to enter, accelerating wear.
- Wheel bearing wearFailing bearings can also click, although usually with a hum that changes with speed.
- Worn track rod or ball jointSteering components creating a knock under load rather than a sharp click.
How serious is it?
Medium-high. A failing CV joint can lock unexpectedly, leaving the car immobile. Catch it early and the boot replacement is cheap; catch it late and you’ll need a full driveshaft.
Typical UK repair cost.
£120–£420. CV gaiter replacement: £120–£260. Outer CV joint replacement: £180–£420. Full driveshaft replacement: £280–£550.
Prices are guides only. Individual quotes will vary by make, model, parts and labour rates.
When to contact a garage.
Within the week. The cost gap between a CV boot replacement and a full joint replacement is significant — earlier inspection saves money.
Use AutoEar to diagnose this sound.
Record the noise, answer a few quick questions and AutoEar will return a likely diagnosis, safety verdict, urgency and UK repair range — then connect you with a trusted local garage.