Rear Brake Caliper Slider and Handbrake Mechanism Seizure
ModerateBrakesThe rear disc brake calipers feature an integrated cable-operated parking brake mechanism that is vulnerable to moisture and road grit ingress. UK winter road salt corrodes the sliding guide pins and the internal handbrake pivot arm, preventing the caliper from returning to rest. The pads drag continuously against the brake disc, causing disc overheating, scorched friction linings, poor fuel economy, and regular MOT test failure.
Strong acrid burning smell and excessive heat radiating from the rear alloy wheels after driving, Handbrake lever travel feels excessively long, pulling almost vertical before holding, Vehicle resists rolling freely on gentle slopes when neutral is selected, Deep circular scoring and blue heat discolouration visible on rear brake discs
- Feel the temperature of the rear wheel hubs immediately after a 10-minute test drive to detect binding calipers
- Examine the rear brake discs for bright silver clean wear versus rusty or grooved contact patches
- Test the handbrake on a steep hill to confirm firm hold within 4 to 6 clicks