2016 Mercedes-Benz C 2.1L Diesel · HJ66 YLL

A ten-year-old Mercedes-Benz C-Class carries a relatively contained MOT history of four recorded tests since 2019, passing on three occasions and failing once on the same date in December 2019. The most recent examination on 17 December 2021 recorded a pass with only a minor windscreen chip noted on the nearside, a cosmetic item that did not affect the driver's view. The single failure was caused by a fuel tank insecurity classified as a Major defect, which on a vehicle of this provenance is unusual and warrants physical inspection of the mounting straps, straps brackets, and underbody fixings to confirm the repair has remained sound. Supporting advisories issued on the failure test flagged front brake pads wearing thin and both rear tyres worn close to the legal limit and on the edge, indicating the vehicle was already approaching a round of consumable replacement at that point. No further advisories were recorded across the subsequent passes in 2020 and 2021, leaving the trailing portion of the record relatively clean on paper, though a five-year gap before the next scheduled test means any deterioration between late 2021 and the present will not be captured in DVSA records. Mileage stands at 89,463 recorded miles across approximately ten years of registration, equating to an annual accumulation of around 8,946 miles, broadly in line with typical private-use expectations for a car of this age. The pattern across the four recorded tests does not show any obvious mileage gaps, with each successive reading consistent with steady rather than intermittent use. This level of annual mileage is sufficient to keep mechanical components, brake systems, and drivetrain parts regularly worked, reducing the likelihood of seized calipers, dried seals, or corroded underbody surfaces that often plague low-mileage or laid-up vehicles. The annual rate does, however, place meaningful cumulative wear on items such as suspension bushes, anti-roll bar links, coil springs, and the dual-mass flywheel or torque converter if equipped with an automatic gearbox, all of which would benefit from physical inspection. A prospective buyer should pay particular attention to the fuel tank securing system that triggered the 2019 failure, as a temporary repair or a non-OE strap can loosen over time. On a lift or ramp, confirm that the tank straps are correctly tensioned, that the rubber isolators are intact, and that there is no chafing of the tank against the underbody. Given the front brake pad advisory issued alongside the failure, the current state of the pads, discs, and the condition of the flexible brake hoses should be verified, looking for lipping on the disc edges, scoring on the pad surfaces, and any bulging or cracking of the rubber hoses. A test drive should focus on pedal feel, listening for any knocking from the front calipers over bumps and feeling for judder or pulsing under firm pedal application, which would indicate disc run-out rather than pad wear. The rear tyres flagged as edge-worn in 2019 should prompt inspection of the rear wheel alignment and the condition of the rear suspension arms, trailing bushes, and subframe mounting points, as uneven rear wear on a Mercedes-Benz C-Class is frequently linked to worn thrust arms or bush deflection. On the road, listen for clonking from the rear over uneven surfaces, particularly over speed humps and expansion joints, and feel for any vagueness or wandering from the rear axle. The windscreen chip recorded in 2021 is a minor cosmetic matter, but any subsequent cracking radiating from the impact point should be checked, as a chip in the driver's primary sight line will fail an MOT. Finally, given the modest annual mileage and the age of the vehicle, a thorough underbody examination for corrosion, particularly around the subframes, brake pipe unions, and suspension mounting points, is advisable, as Mercedes-Benz underbody components from this era are known to suffer surface corrosion that can advance between MOT intervals without being formally recorded.