What Causes the Clicking Sound When Braking at Low Speed in a BMW?
3 Answers
The reasons for the clicking sound when braking at low speed in a BMW are: 1. Excessive wear of the brake disc and brake pads; 2. Abnormal installation of the brake pads; 3. Foreign objects on the brake pads or brake disc; 4. Poor retraction of the caliper, leading to prolonged friction between the disc and pads. Taking the 2021 BMW X1 xDrive25Li Premium Edition as an example: its dimensions are 4565mm in length, 1821mm in width, and 1620mm in height, with a wheelbase of 2780mm. The 2021 BMW X1 xDrive25Li Premium Edition is equipped with an 8-speed automatic transmission, and its engine has a maximum power of 141kW. It features a front suspension of MacPherson independent suspension and a rear suspension of multi-link independent suspension.
After repairing BMWs for so many years, the most common cause of a clunking sound when braking at low speeds is warped brake discs or uneven surfaces. BMW models are particularly sensitive to brake vibrations, and even slight imbalances can transmit noise. Loose calipers or lack of lubrication in the guide pins can also cause abnormal sounds, as these small components need smooth movement during slow braking. Another factor is aging suspension system bushings, which affect force distribution. Ignoring these minor issues may lead to gradual deterioration in braking performance, increased wear, and higher repair costs. It's recommended to regularly visit a professional shop to check brake disc condition and suspension health—prevention is key, saving money and ensuring peace of mind. Safe driving relies on meticulous maintenance.
As a frequent BMW driver, I've also experienced a clunking sound when braking at low speeds. It usually happens during traffic jams or parking, sounding like metal hitting metal, which really worried me. Later, diagnosis revealed that there were hard spots or foreign objects stuck in the brake pads. BMW's braking system is precise, but when the bushings wear out, they can become loose and cause vibrations. If left untreated for a long time, it could even affect steering or braking distance. After learning my lesson, I insist on checking the brake components every six months and avoid sudden braking to extend their lifespan. Regular maintenance combined with gentle driving habits can effectively reduce such faults and ensure travel safety.
