2017 MINI ONE 1.2L Petrol · CL67 AND

The most recent MOT test conducted in October 2025 resulted in a pass, but the overall maintenance trend for the braking system is showing signs of deterioration. While the vehicle maintained a clean record for several years between 2021 and 2023, the two most recent inspections have flagged escalating issues with the rear braking components. The progression from simple pad wear in 2020 to brake imbalance in 2024, and finally to pitted or scored discs alongside thin pads in 2025, suggests that the rear braking system is approaching a point of required mechanical intervention. With a recorded mileage of 42,618 over approximately nine years, this MINI ONE has been driven an average of only 4,735 miles per year. This is notably low compared to national averages and indicates light usage. While lower mileage generally implies less wear on the engine, drivetrain, and transmission, it also carries the risk of component degradation due to extended periods of inactivity. Low-use vehicles are frequently prone to issues such as fluid stagnation, battery depletion, and the buildup of corrosion on moving parts, which may explain the recent advisories regarding the braking assembly. Given the specific advisories, a prospective buyer must prioritize a thorough inspection of the rear braking system. The mention of brake imbalance and worn or pitted discs suggests that the rear calipers may be sticking or binding, preventing the pads from retracting fully and causing uneven wear. During a test drive, pay close attention to any grinding noises, squealing from the rear wheels, or a pulsating sensation through the brake pedal, which would indicate warped or scored discs. You should also test the vehicle under moderate braking to see if the car pulls to one side, a symptom of the recorded service brake imbalance. Beyond the braking system, the low annual mileage necessitates several age-related physical checks. Inspect the tyres for sidewall cracking or perishing, as rubber components can degrade over time regardless of tread depth. Check the condition of the 12V battery, as infrequent driving cycles can lead to sulphation and reduced reliability. It is also essential to verify the service history to ensure that fluids, such as brake fluid and engine oil, have been changed based on the calendar year rather than just mileage, as moisture ingress and chemical breakdown occur over time. Finally, check the underside for any signs of surface corrosion on the exhaust and suspension bushes that may have resulted from the vehicle standing for long periods.