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Brake Advice · Northampton

Why Are My Brakes Squealing or Grinding?

Squealing is often an early warning that your pads are wearing thin. Grinding usually means metal on metal. Here is what each brake noise means and when to get it checked.

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The short answer

Squealing is often an early warning that your brake pads are wearing thin, though it can also be harmless surface rust or new pads bedding in. Grinding usually means the pads have worn through and metal is rubbing on metal, so get it checked straight away. Vibration through the pedal or steering wheel points to a disc or calliper problem.

A noise on its own cannot confirm the cause, which is why we inspect the brakes before recommending anything.

What each brake noise usually means

Squealing or squeaking when braking
Often pads wearing thin. Many pads have a small metal wear indicator that squeals when the pad is low. Get it checked soon.
Squeal in the first few stops, after rain or overnight
Usually light surface rust on the discs, which wears off as you brake. Normally harmless if it clears quickly.
Squeal from brand new pads
New pads can squeal while they bed in. It usually fades. If it does not, get them looked at.
Grinding or growling
Usually pads worn through, with metal rubbing on the disc and scoring it. Get it checked straight away.
Clicking or knocking when braking
Can point to a loose pad, worn fixings or a calliper problem. Get it checked soon.
Judder through the pedal or steering wheel
Often uneven or warped discs, or a sticking calliper. Needs inspecting.
Car pulling to one side
Can mean uneven pad wear or a sticking calliper. Get it checked soon.
Scraping when you are not braking
A stone or debris caught behind the disc, or a bent dust shield. Get it checked soon.

Can I keep driving?

What you noticeWhat to do
Light squeal for the first few stops, especially after rain or overnightUsually surface rust that clears as you brake. Keep an ear out.
Squealing that is constant or getting louderBook an inspection this week.
GrindingGet it checked as soon as you safely can. Do not wait for your next service.
Soft or sinking pedal, pulling to one side, or a brake warning lightDo not wait. Get the car looked at as soon as you safely can.

When should brake pads be replaced?

New pads usually start at around 10 to 12mm of friction material. The usual guidance is to replace them at around 3mm, and not to wait until they squeal or grind. How quickly they wear depends on your driving, traffic and the vehicle. If you are not sure how much is left, we can check, and we look at front and rear as standard. See our brake pads and discs service for job times and a quote.

All brake work, one workshop

We carry out all brake work: pads and discs, callipers, brake fluid, handbrake adjustment and repair, and brake warning light or ABS faults. Brakes are also checked at every MOT, and worn or poorly performing brakes are a common reason for failure, so it is worth having them looked at before your test. Book an MOT in Northampton, or book a service and have the brakes checked at the same visit.

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Brake warning light on, or an ABS fault? We can find out why.

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Frequently Asked Questions

Why do my brakes squeal in the morning?

Overnight moisture can leave a thin layer of surface rust on the discs. It usually wears off within the first few stops. If the squeal continues all day, have the pads checked.

Why are my new brake pads squeaking?

New pads can squeal while they bed in. It usually fades. If it does not, tell whoever fitted them.

Is grinding always metal on metal?

Often, yes. Grinding commonly means the pad material has worn away. Sometimes debris is the cause, but treat it as urgent until it has been checked.

Why does my steering wheel shake when I brake?

Usually uneven or warped discs, or a sticking calliper. It needs inspecting.

When should brake pads be replaced?

New pads usually start at around 10 to 12mm of friction material. The usual guidance is to replace them at around 3mm, and not to wait until they squeal or grind. How quickly they wear depends on your driving, traffic and the vehicle.

What brake work do you carry out?

All of it: pads and discs, callipers, brake fluid, handbrake adjustment and repair, and brake warning light or ABS faults. For pad and disc job times, see our brake pads and discs page.

Hearing something you do not like from your brakes?

Get a free, no-obligation quote, call 01604 493 807 or book online.

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