Why does the Q5 make noise when braking at low speeds?
2 Answers
The reasons for the Q5 making noise when braking at low speeds are as follows: Brake pad break-in: Brake pad break-in is an important part of the break-in process for new cars. Typically, after driving a few hundred kilometers, the braking will feel more comfortable. Sand particles entering: While driving, very small sand particles may get between the brake pads and discs, sometimes causing noise due to friction. Brake system malfunction: Missing or damaged brake disc fixing screws, or the need for additional lubrication, can cause brake noise. Severe brake disc wear: Abnormal brake disc wear can occur due to a dirty brake disc surface, uneven material density of the brake disc, excessively high operating temperatures, or mismatched installation torque of the brake disc.
I've worked in an auto repair shop for many years and have seen plenty of cases of abnormal noises during low-speed braking. The most common issue is worn-out brake pads. When the thickness is insufficient, they tend to squeak, especially during frequent stops in city traffic, where uneven pad wear makes the noise more pronounced. Rust on the brake discs is also common—after rain or if the car hasn't been driven for a while, accumulated rust and dust can cause strange noises during low-speed friction. Newly replaced brake pads might also produce noise during the break-in period, but this usually disappears after a few hundred kilometers of driving. However, don't underestimate it. If ignored for too long, the discs may warp or even compromise braking performance, posing serious safety risks. I recommend owners first clean the brake area with a high-pressure water jet to remove dust. If the noise persists, take the car to a professional shop immediately to check pad and disc thickness. Don’t wait for an accident to regret it—regular brake system maintenance is key. A check-up every six months can save a lot of trouble.
