Rear Brake Disc Corrosion
MinorBrakesDue to regenerative braking, the rear discs often don't get "cleaned" by the pads, leading to surface corrosion and pitting that causes MOT failures.
Estimated cost: £200–£400Affects: 2011–2021Often appears around: Age-related
Typical symptoms
- •Squealing when braking
- •Visible pitting or rust on the disc surface
- •Advisory on MOT for "discs pitted"
What to inspect before you buy
- ✓Inspect the rear discs through the alloy wheel spokes
- ✓Check for a "lip" on the edge of the disc
- ✓Feel for any pulsing through the brake pedal