2018 Mercedes-Benz C 1.9L Diesel · FD14 AAA

The vehicle’s most recent MOT test on January 9, 2026, at 198,974 miles confirms it remains roadworthy with no defects recorded. Over the past 18 months, the MOT history shows a consistent pattern of passing without fail, suggesting the vehicle has not experienced any recurring or critical mechanical issues during official testing. The absence of advisories or defects across five tests—spanning 36,923 miles—indicates compliance with UK roadworthiness standards for its age and mileage. However, the near-simultaneous pass and fail at 151,219 and 151,221 miles in May 2024, despite identical mileages, raises a minor anomaly that warrants closer scrutiny of the test centre’s process or potential undocumented pre-test adjustments. The recorded mileage of 198,974 miles over eight years equates to an average of 24,872 miles annually, which is significantly higher than the UK average for a vehicle of this age. This suggests frequent use, which may accelerate wear on components such as suspension bushes, coil springs, and brake systems. Notably, there are no gaps in MOT testing beyond the standard three-year intervals, though the rapid accumulation of mileage between tests—such as 15,924 miles in just six months between May 2024 and November 2024—implies the vehicle was in active service during that period. The lack of advisories or defects in prior tests does not preclude underlying issues, particularly in high-stress areas like the drivetrain or suspension, which may not always trigger MOT failures until more advanced. Given the vehicle’s age and mileage, a prospective buyer should prioritise an independent inspection of the suspension system, including coil springs, bushes, and shock absorbers, for signs of wear or leakage. The brakes—particularly the rear calipers and discs—should be checked for uneven wear or binding, as high mileage can exacerbate issues like warping or corrosion. Exhaust emissions systems, while not failed in MOTs, may benefit from verification for leaks or catalytic converter efficiency, especially if the vehicle has been driven extensively in stop-start traffic. Structural integrity, including underbody corrosion and frame condition, should also be assessed, as prolonged exposure to road salt or moisture can compromise critical components. The absence of MOT defects does not guarantee all systems are flawless, so a thorough mechanical examination is essential.