What Causes the Clicking Sound When Braking in a BMW?
2 Answers
Reasons for the clicking sound when braking in a BMW: 1. Normal ABS activation. The ABS operation involves a cycle of locking and releasing the brakes, keeping the vehicle in a state of near-lock. When you brake hard and trigger the ABS, it produces a clicking sound, which is normal. In such cases, press the brake pedal firmly to the floor. 2. Excessive wear of brake discs and pads. Both brake discs and pads are high-wear components that experience friction with each brake application. Over time, they naturally wear out, leading to unusual noises. Regular inspection and replacement are necessary. Typically, brake pads should be replaced every 60,000-80,000 kilometers, while brake discs last 100,000-120,000 kilometers. 3. Improper installation of brake pads. If the brake pads are installed incorrectly or are of the wrong type, they can also cause noise. Reinstalling the brake pads correctly is advised. When installing brake pads, always visit a professional auto repair shop for the job.
I've been running a repair shop for several years, and it's quite common for BMW brakes to make a clicking noise. Usually, it's because the brake pads have worn down to the limit, and the friction indicators produce such sounds. Sometimes, uneven or rusted brake discs can cause a loose feeling when braking. Stuck or loose calipers can also lead to unusual noises. Foreign objects like small stones stuck between the disc and pad can create noise. It's normal for metal to expand and contract with temperature changes during cold starts, but if the noise persists, it should be checked. I recommend first checking the brake pad thickness yourself—replace them if they're thin. If you're unsure, take it to a professional shop for a thorough inspection, including the condition of the discs and calipers, to avoid safety risks. Regular maintenance with high-quality parts can prevent these issues—don't skimp on this small expense.
