Brake Pads and Discs: Signs They Need Replacing
Your brakes are the most critical safety system on your car. Knowing when they need attention could prevent an accident – or at least save you money by catching wear early.
Warning Signs Your Brakes Need Attention
1. Squealing or Squeaking
Most brake pads have a metal wear indicator that contacts the disc when pads are low. This creates a high-pitched squeal as a warning. If you hear this, book an inspection soon – you typically have some wear left, but not much.
2. Grinding Noise
Metal-on-metal grinding means the pads are completely worn through and the backing plate is damaging the disc. This is urgent – you're causing expensive damage with every mile, and braking performance is compromised.
3. Longer Stopping Distances
If the car takes longer to stop than usual, or you need to press the pedal harder, the brakes need checking. This could be pads, discs, or a hydraulic issue.
4. Pulling to One Side
If the car pulls left or right when braking, one side is working harder than the other. This could be a sticking caliper, uneven pad wear, or a hydraulic problem.
5. Vibration When Braking
A pulsing brake pedal or steering wheel vibration during braking usually indicates warped discs. This happens when discs overheat – often from heavy braking or a sticking caliper.
6. Brake Warning Light
The brake warning light can indicate several issues: low brake fluid, worn pads (on cars with pad sensors), or a fault in the ABS system. Get it diagnosed promptly.
How Long Do Brakes Last?
This varies enormously based on driving style and conditions:
- Brake pads: 25,000 to 70,000 miles typical range
- Brake discs: Often last through 2-3 sets of pads – 50,000 to 100,000 miles
- Heavy use: Lots of town driving, towing, or hills wears brakes faster
- Light use: Motorway driving is easy on brakes
Should Pads and Discs Be Replaced Together?
Not necessarily. If the discs are within specification and in good condition, new pads alone may be fine. However, if discs are worn, scored, or warped, fitting them with the pads ensures optimal performance and even wear.
We'll always measure and advise honestly – never recommend disc replacement if they're fine.
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