Brakes
Brake Discs — Signs of Wear and When to Replace
Warped or worn brake discs cause vibration through the steering wheel and pedal, reducing braking effectiveness and comfort.
Brake discs can wear unevenly, become warped from heat, or develop grooves and scoring over time. Symptoms include a pulsating brake pedal, vibration through the steering wheel when braking, and a grinding or rubbing noise. In vans that carry heavy loads, discs are subjected to more heat and stress, accelerating wear. Discs should be measured for thickness variation and run-out during every brake service. If the discs are below the minimum thickness stamped on the hub, they must be replaced — ideally in pairs on the same axle.
Key takeaways
- Pulsating pedal and steering wheel vibration indicate warped discs
- Heavy loads accelerate brake disc wear on vans
- Discs must be replaced if below minimum thickness — always replace in axle pairs
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