2005 Mercedes C 2.1L Diesel · YC05 KNX

A persistent pattern of front suspension wear dominates the roadworthiness record of this 21-year-old Mercedes C-Class, with the most recent test on 2021-12-11 returning a pass but flagging a nearside front tyre worn on its edge alongside rear suspension component corrosion. Across the recorded history, anti-roll bar linkages, anti-roll bar pin or bush wear, and track rod end play have appeared repeatedly, suggesting ongoing deterioration of the front and rear anti-roll bar assemblies rather than isolated incidents. The vehicle has only failed twice in the seven tests shown, both involving front-end components: an offside front lower suspension arm bush deteriorated to excessive movement in 2017, and a headlamp aim issue in 2016. While the rear suspension corrosion advisory in 2021 is currently classed as not seriously weakened, it is the type of finding that warrants close physical inspection given the age of the car and the otherwise consistent theme of chassis and bush wear. With 141,709 miles accumulated over roughly 21 years, the vehicle averages around 6,750 miles per year, which is broadly consistent with typical UK usage for a car of this age. The testing history shows a cluster of annual tests between 2016 and 2021, followed by a notable absence of any recorded MOT in 2022, 2023, 2024, or 2025, leaving a substantial gap in the verification record. This combination of moderate annual mileage and a multi-year testing absence means that several years of wear on components such as brake pipes, exhaust mounting rubbers, suspension bushes, and corrosion-prone subframe areas have not been independently verified. Mechanical condition should therefore be assessed against this gap rather than assumed to mirror the 2021 outcome. A prospective buyer should pay particular attention to the front and rear anti-roll bar systems during inspection, given the recurring advisories for anti-roll bar linkage play, pin and bush wear, and lower anti-roll bar linkage ball joint play recorded between 2016 and 2020. On a test drive, listen for clonking or knocking noises from the front end over speed humps and uneven surfaces, and feel for vagueness or rattle through the steering wheel that would indicate worn drop links or deteriorated anti-roll bar bushes. Examine the offside front lower suspension arm bush area carefully, as a complete replacement bush rather than a re-bushed arm may be required if movement has developed since the 2017 failure. Steering should be checked for any looseness or self-centring hesitation consistent with track rod end wear, the nearside rear joint having been flagged for play in 2019. The 2021 advisory for rear suspension component corrosion, combined with the age and mileage, means the subframe, rear axle mounting points, and brake pipe runs along the underbody should be inspected for surface rust and any emerging structural weakness, particularly around jacking points and spring seats. The nearside front tyre edge wear flagged in the same test points to potential camber or suspension geometry deviation, so a four-wheel alignment check is advisable and the tyres should be inspected for uneven inner or outer shoulder wear. Given the multi-year gap in testing since 2021, a thorough pre-purchase inspection covering brake fluid condition, handbrake travel and rear brake adjustment, exhaust integrity, and a road test for any pulling, judder, or suspension noise should be treated as essential rather than optional.