Brakes are the one system on your car that you never want to learn about the hard way. The good news is that brake pads are designed to wear gradually and to tell you when they are running low, provided you know what to look for.
Warning signs your brake pads need attention
A high-pitched squeal
Many pads have a small metal wear indicator that touches the disc once the friction material gets thin, producing a sharp squeal when you brake. Treat it as an early reminder, not background noise.
A grinding or growling sound
If the friction material is gone, metal is rubbing on metal. This damages the discs quickly and turns a routine pad change into a costlier repair. Stop driving hard and get the car checked.
A longer stopping distance or a soft pedal
If the car takes more room to stop, or the pedal feels spongy, there could be pad wear, air or old fluid in the system, or another fault. It needs inspection.
Vibration or a pulsing pedal
Pulsing under braking often points to uneven or warped discs, which can also shorten pad life.
Pulling to one side
If the car drifts left or right when you brake, the pads or calipers on one side may be wearing or sticking differently.
A dashboard warning light
Some cars have electronic wear sensors that trigger a light when the pads reach their limit.
How thin is too thin?
As a general guide, pads with roughly 3 mm of friction material or less are due for replacement, and many workshops recommend changing them before that point. Your mechanic can measure this in minutes during a wheel-off inspection, and it is a good habit to have the pads looked at at every service.
How long do brake pads last?
There is no single number. Pad life depends on your driving style, traffic, load, the type of pad and even the car itself. City driving with constant braking wears pads faster than open-road cruising. Follow your owner's manual and rely on inspection rather than mileage alone.
Choosing between pad types
- Organic (non-asbestos organic): quiet and gentle on discs, but wear faster and can fade under heavy use. Suited to light daily driving.
- Semi-metallic: durable with strong braking bite, though they can be noisier and produce more dust. A common choice for SUVs and heavier vehicles.
- Ceramic: quiet, clean and consistent, generally at a higher price. A good fit for everyday cars where low dust and noise matter.
Not sure whether to buy original or an alternative? Read our guide to OEM vs aftermarket parts. Whichever you choose, confirm fitment for your exact car using the steps in this guide.
Replace them properly
- Replace pads as a set on the same axle, never just one side.
- Inspect the discs. Deep grooves, a raised lip or warping mean they may need resurfacing or replacing.
- Check the brake fluid. It absorbs moisture over time, so old fluid reduces braking performance. See brake fluid options.
- Check the hardware: clips, shims, slide pins and caliper movement.
- Bed the new pads in following the manufacturer's instructions, and avoid harsh braking for the first few hundred kilometres.
DIY or workshop?
Brakes are safety-critical. If you are not experienced with wheel removal, caliper service and torque settings, have a qualified mechanic do the work and test the car before you drive it normally.
