What causes the low-pitched whining sound when braking at low speeds in the XT5?

1 Answers
DelTravis
07/29/25 8:42pm
Possible issues could be with the caliper, brake disc, or brake pads. Brake noise usually originates from the brake pads: Brake pad noise is typically caused by the scraping sound when the pads are worn down. In this case, simply replacing the brake pads will resolve the issue. Another possibility is surface aging or sharp edges on the brake pads, which can be fixed by grinding the surface and edges of the pads. Problems caused by the brake disc: This is usually due to deformation of the brake disc. When driving, the wobbling disc may scrape against the brake pads, causing noise. This can be resolved by repairing and grinding the disc to correct its roundness. Additionally, if the car has been parked for a long time, slight rust may form on the brake disc. The brake pads rubbing against this rust can also cause noise. This situation is not a major concern; simply driving safely for a while will wear off the surface rust.
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