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Brakes & Safety

5 Warning Signs Your Brakes Need Replacing — Don't Ignore These

24 Mar 2025·4 min·Reliance Autos, Arnold Road, Bow E3
BrakesSafetyBrake PadsDiscsEast London

Your brakes communicate through sound and feel. Here's how to read what they're saying before it becomes dangerous or expensive.

1. Squealing or squeaking when braking

A high-pitched squeal when you apply the brakes is usually the wear indicator — a small metal tab deliberately built into the brake pad that contacts the disc when the pad gets thin. It's a warning, not a failure. At this stage: pads need replacing, discs are usually still fine. Cost: moderate. Ignore it and you reach sign number 2.

2. Grinding or metal-on-metal sound

If squealing has progressed to grinding, the pad has worn through completely. Metal caliper is contacting metal disc. The disc is being scored and damaged with every application of the brakes. This is now urgent — and the repair now includes discs as well as pads, significantly increasing cost.

3. Car pulls to one side when braking

If the car pulls left or right under braking, one side is working harder than the other. Common causes: a seized calliper, uneven pad wear, or brake fluid contamination on one side. This is both a safety issue and an MOT fail. Get it checked immediately.

4. Vibration or pulsing through the brake pedal

A pulsing pedal under braking almost always means warped brake discs — typically caused by heavy repeated braking that allows the discs to cool unevenly, distorting them slightly. The discs need to be either machined flat or replaced.

5. Brake pedal feels soft or sinks further than usual

A soft, spongy, or low pedal indicates air or moisture in the brake lines, or a hydraulic leak. This is a serious safety fault — braking power is compromised. Stop driving and get it inspected.

Any of these sound familiar? WhatsApp Reliance Autos on Arnold Road — we'll take a look.

Common questions

Act within a few weeks. It won't fail immediately but leaving it risks reaching the grinding stage, which doubles the cost.
Yes — always replace in axle pairs (both front or both rear) to keep braking even.
Through the wheel spokes you can sometimes see the pad. If it looks thin, get it checked professionally.

Got a question about your car?

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