2005 Mercedes C 2.1L Diesel · BD05 UPT

The vehicle failed its most recent MOT on 14 December 2021 at 138,037 miles, the tester citing an obviously incorrect headlamp aim and excessively worn rear anti‑roll‑bar ball joints. This failure, combined with the recurrence of anti‑roll‑bar wear from earlier tests, indicates a maintenance trend that is worsening rather than stabilising. Mileage has risen from 123,887 miles on 26 November 2019 to 138,037 miles on 14 December 2021, averaging roughly 6,500 miles per year – a typical figure for a 2005 model. The increase of only 38 miles between the 30 November 2020 failure and the 1 December 2020 pass suggests periods of very low use, but overall the mileage progression is steady with no abrupt spikes or unexplained gaps. A prospective buyer should give particular attention to the rear suspension. The anti‑roll‑bar linkage ball joints were described as “excessively worn” in the 2021 failure, having progressed from “slight play” noted in 2019 and 2020. Inspect the bushings, ball joints and sub‑frame mounting areas for corrosion beyond the advisory levels recorded in 2021, as the rear sub‑frame showed non‑excessive but present corrosion. Verify headlamp alignment on the road, as the 2021 test identified a clear aim defect that can affect visibility. Examine the front exhaust flexi‑pipe for the minor leak repeatedly flagged from 2019 through 2020, and ensure the under‑tray does not conceal further rust or component wear. Finally, check the windscreen for the chip noted in 2019 and the damaged area recorded in 2021, and confirm that the rear direction indicator lenses are fully functional. A thorough visual and mechanical inspection of these items will clarify whether the vehicle can be brought back to a road‑worthy state.