Maintenance

Brake pads and rotors: signs they need attention

Brakes give warnings before they fail. Learning the signs helps you replace parts on your terms.

In this article

  • Sounds
  • Feel
  • Visual check
3 mm
minimum pad thickness to replace

Sounds

A high-pitched squeal usually comes from a wear indicator on the pad. A grinding noise means the pad is gone and metal is touching metal.

SymptomLikely causeUrgency
SquealWorn padsSoon
GrindingNo pad leftImmediately
Shaking when brakingWarped rotorSoon
Soft pedalAir or fluid leakImmediately

Intervals and costs are typical ranges. Your owner’s manual comes first.

Feel

A soft pedal, a pedal that sinks or a shaking steering wheel when you brake all call for a check. Pulling to one side points to a stuck caliper.

A brake that gives you a warning is a brake doing its job.

Visual check

Look through the wheel spokes at the pad thickness. If the friction material is less than about 3 mm, it is time to replace.

Do it in this order

  1. Listen for noises
  2. Check pad thickness
  3. Replace pads in axle pairs
  4. Change brake fluid every 2 to 3 years

Practical tip
Replace pads before they wear down to metal. Waiting until the rotors are scored can double the repair cost.

Bottom line

Do not ignore the noises. Replacing pads early saves rotors and money.

Specifications, prices and rules change. Confirm current details with the manufacturer or the relevant authority before you buy or repair.

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