2009 Mercedes-Benz C 3.0L Diesel · BF09 AXP

The Mercedes-Benz C-Class in question presents a clean but irregular MOT history, with no recorded defects across all five tests spanning 2023 to mid-2025. The most recent assessment, conducted on 2025-06-03 at 144,248 miles, passed without advisories or failures—an outcome mirrored in the July 2024 and 2023 tests. However, the back-to-back failures on 2025-06-02 and 2024-07-02 at identical mileages (144,248 and 136,645 respectively) suggest these were administrative rather than technical re-tests, given the absence of defects. The stability of the vehicle’s condition over this period is notable, with no signs of recurring mechanical issues or deteriorating components. That said, the repeated failures—despite no faults being logged—raise questions about whether the vehicle was presented for re-testing due to unresolved advisories from a prior inspection not included in this record. The mileage accumulation of roughly 8,485 miles per year aligns with typical usage for a vehicle of this age, indicating neither excessive nor negligible driving. The gaps between tests are consistent, with annual MOTs in July 2023 and 2024, followed by an early re-test in June 2025—just one month before the due date. This pattern implies the vehicle has been maintained within the legal window, though the lack of advisories or defects in any test period suggests either meticulous upkeep or a vehicle that has aged well without significant wear. There is no evidence of rapid mileage accumulation or prolonged inactivity, which would otherwise signal potential neglect or high-stress usage. For a prospective buyer, the absence of defects in the MOT history is encouraging, but a thorough pre-purchase inspection should focus on components prone to long-term wear in a 17-year-old vehicle. Given the age and mileage, particular attention should be paid to the suspension—specifically the condition of coil springs, anti-roll bars, and rubber bushes—along with the brake system, including caliper binding, disc thickness, and pad wear. The exhaust system should be checked for corrosion or leaks, particularly around the manifold and catalytic converter, while the underbody should be scrutinised for structural rust or fatigue cracks. Although the MOT record shows no issues, the re-test failures hint at possible unresolved advisories from earlier inspections, so verifying the full service history—especially for items like timing belt, coolant system, and differential fluid—would be prudent. The vehicle’s electrical systems, including sensors and warning lights, should also be tested, as these can degrade without leaving visible traces.