2016 Citroen C3 1.6L Diesel · BT66 MFT

The vehicle achieved a PASS at its most recent MOT test on 23 September 2025 with no defects recorded, which represents the current roadworthy status. However, an evaluation of the broader MOT history reveals a pattern of recurring mechanical concerns, particularly around the drive shaft constant velocity boots, which have failed on four separate occasions across 2022, 2023, 2024, and 2025. While the vehicle has been returned to a passable condition at each test, the repeated recurrence of the same major defect strongly suggests that the underlying cause, likely perished rubber, aging grease, or poor quality replacement components, has not been permanently resolved. Additionally, the 2022 test recorded advisories for both rear brake discs showing wear and pitting, which by the present mileage of over 78,000 miles are likely to have progressed further. The cumulative effect is a maintenance trend that appears reactive rather than proactive, with the owner addressing defects as they are flagged rather than conducting thorough restorative work. The recorded mileage of 78,330 miles over a ten-year period equates to an average of approximately 7,833 miles per annum, which is broadly typical for a vehicle of this age, suggesting regular but not excessive use. There are no significant gaps in mileage accumulation between test entries that would indicate prolonged periods of standing or inactivity. This consistent annual usage is mechanically advantageous, as regular driving helps preserve component health, maintains battery charge, prevents brake disc corrosion and binding calipers, and keeps seals and boots supple. Conversely, the mileage is now substantial enough that wear-related deterioration of suspension, braking, and drivetrain consumables should be expected, particularly given the documented history of CV boot failures and rear brake disc wear. Given the recurring CV boot failures recorded on both nearside and offside front drive shafts, it is essential that the buyer conducts a thorough physical inspection of the constant velocity joints for any signs of grease leakage, perished rubber, or recently replaced components of questionable quality. On a test drive, listen for clicking or knocking noises from the front wheels during full lock turns, which would indicate worn CV joints due to past contamination from torn boots. Inspect all four tyres carefully for age-related perishing or cracking on the sidewalls, particularly as the rear offside tyre was previously flagged for damage and perishing, and confirm that replacements are of consistent make, model, and tread depth. Examine the rear brake discs for lipping, corrosion, or scoring by viewing through the wheel spokes, and during the test drive listen for any brake shudder or grinding that may indicate the previously noted pitted discs have now worn beyond acceptable limits or the calipers are binding from infrequent use. Beyond the documented defect history, a vehicle of this age and mileage warrants additional buyer inspection focused on time-based degradation regardless of MOT outcome. The 12V battery should be load-tested as units of this vintage frequently fail without warning, and the charging system should be verified. All fluid services, including engine oil, coolant, brake fluid, and transmission oil, should be confirmed as recently renewed, as brake fluid in particular is hygroscopic and requires replacement every two years to prevent internal corrosion of the brake system. Inspect the exhaust system for corrosion and blowing joints, examine the underbody and suspension components including coil springs, bushes, and anti-roll bar links for wear or corrosion, and verify the service book stamps to confirm regular maintenance has been performed. Finally, check for any warning lights on the dashboard, ensure all electrical functions operate correctly, and confirm that any previous CV boot repairs were carried out using OEM specification components to reduce the likelihood of repeat failure.