What Causes the Squeaking Sound When Braking at Low Speed in a BMW 3 Series?
1 Answers
BMW 3 Series low-speed braking squeaking is caused by sand between the brake pads and brake discs, which can be resolved by disassembly and cleaning. Below is relevant information about brake pads: Function: Automotive brake pads, also known as brake linings, refer to the friction materials fixed on the rotating brake drums or discs of the wheels. The friction linings and blocks within them withstand external pressure to generate friction, thereby achieving the goal of vehicle deceleration. Material: Automotive brake pads are generally composed of steel plates, adhesive heat insulation layers, and friction blocks. The steel plates are coated to prevent rust, and the coating process is monitored using an SMT-4 furnace temperature tracker to ensure the temperature distribution during coating meets quality standards.