If you hear a clicking or popping noise from the front of the car when turning sharply — especially when accelerating out of a junction or car park space — the most common cause is a worn constant velocity (CV) joint.
Other causes are possible, so it is worth having it checked.
What a CV joint does
CV joints connect the driveshaft to the wheels, letting power reach the wheels while they steer and move with the suspension. Each joint is sealed in a rubber boot filled with grease.
How they fail
When the boot splits, grease escapes and dirt gets in, wearing the joint. Look behind the front wheels for a torn boot or grease splattered around the inside of the wheel arch.
Other possible causes
- ▸Loose wheel trims or hubcaps
- ▸Worn suspension parts such as ball joints or strut mounts
- ▸Something caught in the tyre tread
- ▸Damaged brake shields rubbing
Why not to ignore it
If caught early, replacing a split boot is relatively cheap. A badly worn joint can eventually fail, leaving the car unable to drive. Have it checked promptly.
CAUTION: This is general automotive information, not professional mechanical advice. Always follow your vehicle manufacturer’s specifications and service schedule, and have brakes, steering, tyres, and other safety-critical systems inspected by a qualified mechanic.