2011 Mercedes-Benz C 2.1L Diesel · DG11 DHO

The vehicle’s most recent MOT test on 2026-01-23—just six months ago—confirms it passed without defects, though it was retested on the 21st of the same month following an immediate failure. This pattern of consecutive passes and fails at identical mileages (97,862 and 104,690 miles) suggests either a temporary administrative or procedural oversight rather than a recurring mechanical issue. The absence of recorded defects across all five tests indicates no persistent faults were detected by the tester, though the repeated retesting at the same mileage is unusual and warrants scrutiny of the vehicle’s service history beyond MOT records. The recorded mileage of 104,690 miles over 15 years aligns with typical usage for this age, averaging around 7,000 miles annually. There are no significant gaps or abrupt jumps in mileage between tests, though the consistency of the 2025 and 2026 tests—both at identical mileages—implies either a missed service interval or an unexplained delay in testing. The lack of advisories or partial failures in any test further supports that major components like suspension bushes, coil springs, or brake calipers have not yet reached critical wear thresholds. Given the clean MOT history, a buyer should prioritise an independent inspection of the suspension geometry, particularly the rear bushings and track rods, as these components often degrade incrementally without immediate MOT failure. The repeated retesting at identical mileages raises suspicion over whether minor issues—such as binding calipers or uneven tyre wear—were overlooked or dismissed by previous owners. Additionally, the brake discs and pads should be measured for thickness, as repeated braking cycles at high mileage can lead to uneven wear even if the system passed inspection. Finally, the underbody and wheel arches should be examined for corrosion, especially around the subframe and exhaust mounts, as this model is prone to structural fatigue over 15 years.