2018 Mercedes-Benz C 2.1L Diesel · AF68 ODP

A clean and consistently passing roadworthiness record is the defining mechanical story of this 2018 Mercedes-Benz C-Class, with five consecutive MOT tests from 2021 through 2025 returning pass results and no advisories or defects recorded against any inspected component. The most recent examination on 12 May 2025 again produced a clean pass, reinforcing what is by any measure an unusually tidy DVSA history for an eight-year-old executive saloon. The absence of recorded advisories across multiple tests indicates that items typically flagged as they approach regulatory thresholds, such as brake pad and disc wear, tyre tread depth, suspension bush deterioration, and exhaust integrity, have remained within specification at each annual check. While a clean MOT history does not guarantee that hidden defects do not exist between tests, it does demonstrate that the vehicle has been presented for inspection in a roadworthy condition year after year without any mechanical category being noted as approaching failure. Annual mileage on this C-Class sits at roughly 6,972 miles per year based on the 55,772 figure against an eight-year age, which is broadly typical for a UK-registered executive saloon of this generation and suggests the car has seen regular rather than extreme use. The MOT testing cadence itself is consistent, with examinations falling in late autumn or spring of successive years from 2021 onwards, implying the vehicle has been kept on the road throughout rather than left laid up for extended periods. This pattern of moderate, steady usage is mechanically favourable: it tends to keep consumables such as brake discs, tyres, and suspension components within their normal service life without suffering the corrosion issues that frequently afflict low-mileage garage queens or the accelerated wear associated with high-mileage motorway fleet use. There are no gaps in testing that would suggest a dormant period, and no dramatic mileage escalations between tests that would imply heavy recent use. Given the absence of any flagged components in the MOT record, the specific inspection priorities for a prospective buyer should logically shift toward the items most likely to require attention on a Mercedes-Benz C-Class of this age and mileage that would not necessarily trigger an MOT advisory until later in their service life. On a test drive, listen for any knocking or clonking from the front suspension over speed humps and uneven road surfaces, as front control arm bushes and lower wishbone components on W205-generation C-Class models are known to deteriorate and can produce audible wear before measurable play develops. Steering should feel precise and self-centring without vibration through the wheel under braking, which can indicate warped front brake discs even where pad material remains above the MOT threshold. The brake pedal should feel firm, with no sponginess or excessive travel, and the vehicle should pull up in a straight line without deviation. Under the bonnet, inspect for any oil misting or weeping around the rocker cover and sump area, as well as the condition of the coolant hoses and expansion tank for signs of brittleness or staining that would suggest age-related degradation. Check the underside visually where accessible for any surface corrosion on suspension arms, subframe mounting points, and brake pipe brackets, paying particular attention to the rear axle area. Inspect the tyres for even shoulder wear across the axle, as uneven wear can point to alignment or suspension geometry issues that may not yet have generated an MOT advisory. Finally, verify that all electronic systems, including the infotainment display, climate control, and driver assistance features, operate correctly, and confirm the service history shows regular oil and filter changes at manufacturer intervals, as Mercedes-Benz engineering tolerances demand consistent maintenance to preserve long-term drivetrain health.