2015 Mercedes-Benz C 2.1L Diesel · LL65 NFF

The most recent DVSA examination on 16 February 2026 resulted in a pass, which is a positive immediate indicator; however, this outcome should be viewed with measured caution. The pass was issued only three days after a previous test on 13 February 2026 had resulted in a failure, suggesting that remedial work was carried out in a very narrow window to secure the pass certificate. Prior to that, the vehicle recorded three consecutive clean passes in January 2023, January 2024, and January 2025 with no advisories or defects recorded, indicating that the more recent deterioration is a relatively recent development. The sudden appearance of a dangerous tyre defect, a major suspension arm failure, and a worn tyre advisory in a single test is a clear sign that the vehicle's maintenance regime may have lapsed, particularly given the very high annual mileage it has accrued. The presence of a minor windscreen damage note on both February 2026 tests is a recurring observation that, while not test-failing, warrants eventual replacement as it can progress to a more serious MOT failure if cracking spreads. The recorded mileage of 163,220 miles on an eleven-year-old vehicle equates to an annual average of approximately 14,838 miles, which is substantially above the typical mileage for a Mercedes-Benz C-Class of this age. There are no significant gaps in the MOT history to suggest long periods of standing or underuse, and the consistent year-on-year testing indicates a vehicle that has been in regular daily use. High mileage of this nature accelerates wear on all consumable and drivetrain components, including brake discs and pads, suspension bushes, coil springs, anti-roll bar links, and the dual-clutch or conventional automatic transmission depending on variant. The recent suspension arm failure and tyre issues are entirely consistent with a vehicle that has covered this level of distance, and a prospective buyer should expect further suspension and braking component replacement to be required in the near to medium term. Given the major defect recorded for the offside front inner suspension arm, it is essential to verify exactly what component was replaced and whether the work was carried out to a satisfactory standard, ideally with a documented invoice. A test drive should focus on detecting any remaining suspension irregularities, including clonks or knocking over uneven surfaces, imprecise steering, uneven or premature tyre wear, or vibration through the steering wheel, all of which would suggest that further related components such as bushes, drop links, or the offside rear arm may also be approaching the end of their service life. The nearside front tyre was classified as dangerous for having no visible tread, and the nearside rear outer tyre was noted as worn close to the legal limit on its edge, which points to either a camber issue, inconsistent tyre pressures, or poor wheel alignment. A four-wheel alignment check and inspection of all suspension geometry should be prioritised, and the buyer should budget for a full set of replacement tyres if the existing ones have any remaining wear concerns. Beyond the specific MOT advisories, the high mileage and age of this C-Class warrant a thorough inspection of items that deteriorate with time as well as use, regardless of MOT coverage. Brake discs should be examined for lipping, corrosion ridges, and any signs of binding calipers, particularly as the vehicle may have been used extensively in stop-start urban conditions. Brake fluid should be changed every two years irrespective of mileage due to its hygroscopic nature, and the coolant, automatic transmission fluid, and engine oil service history should be verified with supporting invoices. The 12V battery is likely due for replacement given the vehicle's age, and the exhaust system, including the rear silencer and under-floor sections, should be checked for corrosion given the mileage. Tyres should be inspected not only for tread depth but also for sidewall cracking or perishing from age, and the underside of the vehicle should be examined for fluid leaks, corroded brake lines, and wear on engine and gearbox mountings, all of which are common concerns on a high-mileage Mercedes-Benz of this generation.