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Brake Pad Wear: Signs, Checks & Replacement Guide

Temps de lecture: 2'
Brake caliper and disc used in a guide to brake pad wear

Brake pads are a normal service item, but there is no single mileage at which every car needs a new set. Vehicle weight, driving conditions, brake design and driving style all affect wear. The safest approach is inspection and measurement rather than relying on a generic mileage figure.

Common Signs Brake Pads Need Checking

  • A brake-pad warning message or wear-sensor light.
  • Reduced visible friction material during inspection.
  • Grinding or scraping caused by severely worn friction material.
  • Squealing or unusual brake noise.
  • Uneven braking feel or evidence that one pad is wearing faster than another.

Why Inner and Outer Pads Can Wear Differently

A sliding caliper should allow both pads to apply evenly, but seized guide pins, sticking pistons, corrosion or damaged hardware can make one pad wear faster. Replacing pads without correcting the underlying fault can lead to rapid repeat wear.

Brake Pad Wear Sensors

Some vehicles use an electrical wear sensor fitted to one or more pads. The sensor may be a separate part, may be built into the pad, or may not be fitted at all. Check whether your vehicle requires a sensor and whether the new pad set includes it.

Do New Pads Need New Discs?

Not automatically. Brake discs should be inspected for thickness, corrosion, scoring, cracking and other damage. If discs are below specification or unsuitable for continued service, they should be replaced according to the correct repair procedure.

Check Why It Matters
Front or rear axle Front and rear pad shapes are normally different.
Brake system / caliper Different calipers can use different pad backing plates on the same model.
Pad dimensions Width, height and thickness help distinguish variants.
Wear sensor Connector type and sensor provision must match the vehicle.
OE / manufacturer number Useful when several pad sets are listed for one vehicle.

How to Order the Correct Brake Pads

  1. Select the exact vehicle and engine.
  2. Confirm front or rear axle.
  3. Check the brake system and pad shape.
  4. Compare pad dimensions and sensor provision.
  5. Use OE or manufacturer references if available.
  6. Read all chassis, production-date and equipment notes.

Brake Pad FAQs

Should brake pads be replaced on both sides of an axle?

Brake pads are normally supplied and serviced as an axle set so braking remains balanced across the axle.

Why are my new pads the wrong shape even though the car model matches?

The same model can use more than one caliper or brake package. Engine, trim, build date or optional equipment can change the pad design.

Where can I find replacement brake pads?

Browse our brake pad range or read our brake discs and pads fitment guide before ordering.