Control arm bushes are rubber or polyurethane mounts where the control arm attaches to the body or chassis. They absorb vibration and let the arm pivot, while holding the wheel in the right position.

Common signs include clunking over bumps, wandering under braking, vibration through the steering, and uneven tyre wear. Cracked or split rubber is a sign the bushes need replacing.

If the arm is in good condition, new bushes can be pressed in. Many people replace the complete arm instead, as it often comes with new bushes and a ball joint already fitted, which saves labour.

Polyurethane bushes are firmer and last longer, which sharpens handling, but they can pass more noise and vibration into the cabin. Rubber bushes give a quieter, more comfortable ride.

Yes. New control arms or bushes change the suspension geometry, so a wheel alignment afterwards keeps the car tracking straight and protects your tyres.