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What Causes Brake Pad Noise at Low Speeds?

2 Answers

OPhoebe

07/28/25 7:10pm

Brake pads squeaking at low speeds may be due to brake pad malfunction, improper bedding-in of the brake pads, or misalignment of the brake pads. This situation requires timely repair. Detailed explanations are as follows: 1. Bedding-in period: The brake pads and rotors used in cars require a certain period of bedding-in. If newly replaced brake pads are producing noise, it might be caused by poor bedding-in between the brake pads and rotors. When braking, the noise occurs simultaneously. 2. Service life: Brake pads are consumable items that need replacement after certain usage. This depends on the vehicle's usage conditions. Generally, during normal vehicle operation, front brake pads wear faster than rear ones. The service life of front brake pads is approximately 30,000-50,000 kilometers, while rear brake pads last about 100,000-150,000 kilometers.

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VanFrank

08/12/25 12:23am

It's quite common to hear squeaking sounds when braking at low speeds. I was puzzled when I encountered it myself last time. It could be that the brake pads are worn to their limit, and the metal wear indicator is scraping against the brake disc, causing a screech. Alternatively, the brake disc surface might be rusted or grooved, especially noticeable after parking for a few days in rainy weather. If you've just replaced the brake pads, they might not be properly bedded in yet—it could take a few hundred kilometers for the noise to disappear. I recommend checking the brake pad thickness first; if it's less than 3mm, they must be replaced. Don't just opt for cheap ordinary pads—ceramic compound pads can reduce strange noises caused by dust buildup. Remember to rinse the inner side of the wheels when washing your car, as small stones stuck in the brake system can cause this noise. If the noise is accompanied by vibration, check immediately if the brake caliper guide pins are seized.

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