What Causes the Clicking Sound When Braking in a Volvo XC60?
2 Answers
The main reasons for abnormal brake noises are as follows: 1. Running-in of a new car: The running-in of brake pads is a crucial part, and it usually takes a few hundred kilometers of driving before the brakes feel more comfortable. Newly replaced brake pads also need a running-in period to better integrate with the old disc. Initially, the brakes may feel very stiff, and it typically takes a few hundred kilometers of driving before they improve. 2. Sand particles: While driving, very small sand particles may get between the pad and the disc, sometimes causing abnormal noises due to friction. This usually does not require repair, and driving a bit more to let the small sand particles fall out is sufficient. 3. Running-in: For cars that produce abnormal noises due to incomplete running-in, driving aggressively and braking hard can help run in the brakes quickly, but this will cause more severe wear on the brake pads, effectively reducing their lifespan. Therefore, it is recommended to drive for a while longer and observe the situation, avoiding artificially forcing the wear of the brake pads. 4. Screws: Missing or damaged fixing screws on the brake disc can also cause abnormal brake noises.
I've driven quite a few Volvo XC60s and encountered situations where the brakes make a clunking noise, which can have several causes. The most common one is warped brake rotors, especially after frequent hard braking, where uneven heating causes deformation, resulting in a clunking sound when braking. Loose brake pads or aging retaining springs can also cause this, particularly after driving on bumpy roads, where the brake pads rattle inside the calipers, creating noise. Another possibility is a loose tie rod end ball joint, which connects the wheel to the chassis—once it wears out, braking can produce a clunk. Occasionally, the ABS system engaging can also cause noise, but that sound is more rhythmic. I recommend getting it checked early to avoid costly full brake system replacements due to worn rotors.