2012 Mercedes-Benz C 2.1L Diesel · M1 YML

The most recent MOT test on February 3, 2026, confirms the vehicle remains roadworthy with no defects recorded, though the preceding December 2024 test identified a minor oil leak classified as non-excessive. This suggests the vehicle’s condition has remained stable over the past year, with no evidence of worsening mechanical issues. The absence of advisories or repeated failures in critical systems like brakes, suspension, or emissions indicates the owner has addressed minor concerns promptly. However, the recurring oil leak—first noted in December 2022 and again in December 2024—implies a persistent underlying issue, likely related to seals or gaskets, that should be investigated further. The mileage progression shows consistent usage, averaging around 7,200 miles annually, which is typical for a vehicle of this age. There are no abrupt jumps or prolonged periods of inactivity, though the gap between the December 2024 and February 2026 tests (just over two months) is slightly longer than the usual annual cycle. This could reflect either seasonal storage or a temporary pause in driving. The most significant mileage increase occurred between December 2021 (76,738 miles) and December 2022 (86,173 miles), adding nearly 9,400 miles in a year, which may have contributed to the first recorded oil leak. Given the history, a buyer should prioritise an inspection of the engine bay, particularly the oil sump and valve cover gasket, to confirm the source of the persistent oil leak. The December 2022 test also noted the fitting of undertrays and an engine cover, which may have addressed some corrosion risks but should be checked for proper sealing and rust development. The suspension components, including bushes and coil springs, warrant close examination for wear or degradation, especially given the vehicle’s age and mileage. Braking performance should be tested for binding calipers or uneven wear on discs, as these are common issues in high-mileage Mercedes-Benz models. Finally, the exhaust system and underbody should be inspected for corrosion or leaks, particularly around the undertrays and flanges.