What Causes the Clicking Sound When Braking at Low Speeds?
2 Answers
Abnormal sounds when braking at low speeds are a normal activation of the ABS. Below are detailed explanations: 1. Electronic Interconnection: The ABS operation process is essentially a cycle of locking and releasing the brakes, keeping the vehicle in a state of near-lock rolling. Therefore, when the ABS is activated by sudden braking, a clicking sound may occur, which is normal. In such cases, simply press the brake pedal firmly to the floor. For automatic transmission vehicles, the "clicking" sound when braking may primarily be due to the electronic interconnection between the braking system and the automatic transmission. 2. Excessive Brake Disc Wear: Both brake discs and brake pads are high-wear components. Each time the brakes are applied, these two parts experience friction, leading to natural wear over time. When the wear becomes excessive, abnormal sounds will occur, necessitating regular inspection and replacement. Typically, brake pads should be replaced every 60,000 to 80,000 kilometers, while brake discs should be replaced every 100,000 to 120,000 kilometers.
Having driven for decades, it's quite common to hear a clunking sound when braking at low speeds. This is usually caused by warped or unevenly worn brake rotors, where the friction becomes more noticeable at low speeds, creating a pulsating sensation. It could also be due to small stones or debris embedded in the brake pads, causing noise—just like in my experience with older cars, where a warped rotor would make noise when braking, but the issue resolved after resurfacing. Loose suspension components, such as worn shock absorber ball joints, can also produce noise when slowing down. The ABS system rarely engages at low speeds, but the problem worsens with increased wear. I recommend not ignoring these sounds—they serve as a warning of component failure. Early inspection by a professional shop can prevent further damage and save on rotor repair costs. Remember, safety comes first—unresolved brake noises increase risks at high speeds. Regular car maintenance brings peace of mind, and a worry-free journey is the greatest reward.
