What Causes Squeaking Brakes When the Car Just Starts?
2 Answers
Reasons for squeaking brakes when the car just starts: 1. The use of low-quality or overly hard brake pads may cause a squeaking sound when the brake pads rub against the brake disc during braking; 2. The presence of sand or foreign objects between the brake pads and the brake disc can also cause abnormal noises during braking; 3. Severe wear of the brake disc, caused by the use of low-quality brake pads or hard foreign objects entering between the brake pads and the brake disc, can lead to abnormal wear of the brake disc; 4. Brake pad warning—some brake pads have electronic alarms, while some low-end cars use warning tabs. If the wear level of the brake pads reaches the warning line, a squeaking alarm sound will be emitted, indicating the need for immediate replacement.
Squeaky brakes when starting off are quite common, especially after rain or prolonged parking. The brake disc surface can rust, and the initial few brake applications will produce squeaking as the rust particles rub against the pads, which disappears after driving for a while. Another possibility is that newly replaced brake pads and discs haven't been properly bedded in and need a few hundred kilometers to adapt. Occasionally, small stones getting stuck between the brake pads can also cause brief squeaking. These situations generally don't require attention. However, if the squeaking occurs every time you start and persists for a long time, it's necessary to check for issues like sticky caliper pistons or hardened spots on the brake pads.
