Your brakes are arguably the most important safety system on your car. They are also a wear item — brake pads and discs do not last forever, and they need replacing at regular intervals. The good news is that your car will usually give you clear warning signs before the brakes become dangerous. Here is what to look and listen for.
1. Squealing or Squeaking When Braking
A high-pitched squeal when you press the brake pedal is usually the first sign that your brake pads are wearing thin. Most modern brake pads have a small metal wear indicator built into them. When the pad material wears down to a certain level, this indicator contacts the brake disc and creates that distinctive squealing sound. It is designed to be annoying — it is your car telling you to get the pads replaced.
Do not ignore it. The squeal will eventually turn into a grinding noise, which means you have gone past the pads and the metal backing plate is now grinding against the disc. At that point, you are damaging the discs as well, which makes the repair significantly more expensive.
2. Grinding or Scraping Noises
If you hear a deep grinding or scraping sound when braking, your brake pads are almost certainly worn through completely. The metal backing plate is now in direct contact with the brake disc, which damages the disc surface and reduces braking performance. This is a safety issue — get it checked immediately.
In some cases, grinding can also be caused by a stone or piece of debris caught between the pad and disc. This is less serious but still worth investigating.
3. The Car Pulls to One Side When Braking
If your car pulls to the left or right when you brake, it usually means one of the brake calipers is sticking or the pads are wearing unevenly. A seized caliper means one side is doing more braking work than the other, which is both inefficient and potentially dangerous. It can also cause premature tyre wear on the affected side.
4. A Soft or Spongy Brake Pedal
If the brake pedal feels soft, spongy, or travels further than usual before the brakes engage, there may be air in the brake lines or a problem with the brake fluid. Brake fluid absorbs moisture over time, which lowers its boiling point and can cause the pedal to feel soft, especially after heavy braking. We recommend changing brake fluid every two years.
A sudden change in pedal feel — especially if the pedal goes to the floor — is a serious issue. Do not drive the car. Call us and we will arrange to get it looked at.
5. Vibration or Pulsing Through the Brake Pedal
If you feel a vibration or pulsing through the brake pedal when braking, your brake discs are likely warped. This happens when the discs overheat — usually from heavy braking on a long descent or from driving with a seized caliper. Warped discs can sometimes be skimmed (machined flat), but often they need replacing.
How Long Do Brakes Last?
Brake pad life varies enormously depending on your driving style, the type of driving you do, and the vehicle. As a rough guide, front brake pads typically last 25,000 to 50,000 miles, and rear pads last longer because the fronts do most of the braking work. Discs usually last through two sets of pads.
If you do a lot of town driving with frequent stopping and starting, your brakes will wear faster than if you mainly do motorway miles. Towing a caravan or trailer also accelerates brake wear significantly.
The Bottom Line
Brakes are not something to put off. If you notice any of these warning signs, get them checked sooner rather than later. Catching worn pads early is a straightforward, relatively inexpensive job. Leaving it until the discs are damaged doubles the cost. At AVS Bransgore, a brake inspection is quick and we will give you an honest assessment of what needs doing and what can wait. Call us on 01425 200826.
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