What Causes the Squeaking Noise When Braking in a BMW?
2 Answers
BMW brake squeaking is caused by the brake pads. Reasons for brake squeaking: If there is a squeaking noise when braking, it is mostly due to excessive wear of the brake pads, creating an abnormal gap. It could also be caused by improper material use or deformation of the brake disc, or issues with the hardness, porosity, friction characteristics, and compression properties of the brake pads being substandard, leading to the noise. Solutions for brake squeaking: Brake squeaking can usually be resolved by replacing the brake pads. If the brake disc is damaged, it should also be replaced. When replacing, pay attention to model compatibility and other issues, as mismatched parts can still cause squeaking.
I've been driving a BMW for several years, and the squeaking noise when braking is really annoying and concerning for safety. The main reasons could be that the brake pads have worn thin and need replacement, or there's rust on the rotors, especially after rain. It could also be foreign objects stuck in the gaps, like small stones or dust. More serious issues might include loose brake calipers or stuck pistons. BMW is a high-end car with a precise braking system, and the noise is a sign that you need to get it checked. It's recommended to clean the brake components during regular maintenance to avoid failure at high speeds. Delaying repairs poses significant risks, so it's crucial to visit a professional shop for inspection—safety comes first.