2010 Mercedes-Benz C 2.1L Diesel · EY10 ACU

The vehicle’s most recent MOT test on 2023-09-04 confirms it remains roadworthy, though the immediate preceding test on 2023-08-21—just 23 days earlier—was a failure without recorded defects. This abrupt retest suggests either a minor administrative oversight or a last-minute correction, as no faults were logged. The 2022 test at 154,641 miles indicates a stable pattern of passing without advisories, but the lack of defects in either failure or pass raises suspicion over whether critical components were overlooked or if the tester missed subtle issues. Buyers should treat this as a red flag for potential hidden wear, particularly in areas prone to neglect, such as suspension bushes and coil springs, which often fail silently before becoming MOT-critical. The recorded mileage of 164,770 miles over 16 years averages roughly 10,300 miles annually, a rate consistent with typical usage for a vehicle of this age. The gap between the 2022 and 2023 tests—just under a year—suggests regular MOT compliance, though the 2023 failure followed by an immediate retest is unusual. There’s no evidence of rapid mileage accumulation or prolonged inactivity, but the sparse defect history means consumables like brake discs, pads, and tyres may have been replaced without official record. The lack of advisories in any test implies either diligent maintenance or a history of deferring minor issues, which could now be approaching critical thresholds. Given the absence of documented faults, an in-person inspection should prioritise high-wear components not covered by MOT standards. Focus on the suspension—check for cracked or dried-out bushes, sagging coil springs, and excessive play in ball joints. The braking system warrants scrutiny: binding calipers, unevenly worn discs, or corrosion in the rear (a common issue on older Mercedes) could have gone unnoticed. Examine the exhaust for leaks or excessive rust, particularly around joints, and inspect the underbody for structural corrosion, especially around the sills and wheel arches. The engine bay should be checked for oil leaks, worn drive belts, and the integrity of the cooling system, as these are often deferred until failure. The tyres, though not failing here, may have been rotated or replaced irregularly—verify tread depth and sidewall integrity independently.