2015 Mercedes-Benz C 2.1L Diesel · SF65 YBH

The vehicle holds a valid MOT pass dated 13 November 2025 at 139,407 miles, yet the maintenance trend over the preceding two years is mixed rather than consistently improving. The most recent test still recorded a corroded brake pipe at the rear and a damaged lower windscreen, both of which are recurring minor advisories rather than fresh mechanical failures. A more serious pattern emerges when looking back to the November 2024 failure, where the tester flagged a missing wheel fixing, a significantly worn inner rear brake disc, fluctuating service brake effort, and a degraded suspension ball joint dust cover. Several of those items were rectified before the November 2024 pass, suggesting reactive repairs rather than a proactive maintenance regime. The November 2023 failure was more severe still, with both front coil springs fractured and both rear tyres worn below the 1.6mm legal limit. The coil spring replacements and tyre changes carried out ahead of the November 2023 pass indicate that major suspension and safety components have been replaced under pressure rather than serviced on a planned schedule. Mileage accumulation tells a clear story of sustained high use. The vehicle covered roughly 16,944 miles between the November 2023 test at 102,552 miles and the November 2024 test at 119,496 miles, then added a further 19,911 miles in the twelve months leading to the November 2025 test at 139,407 miles. That acceleration in annual mileage, averaging over 19,000 miles in the most recent year, places above-average stress on consumable components such as brake discs, pads, tyres, and suspension bushes. The gap between the failed test on 1 November 2024 at 119,177 miles and the pass on 7 November 2024 at 119,496 miles shows only 319 miles added during the repair window, which is consistent with a short retest loop rather than extended road use. No significant mileage gaps or long periods of inactivity are visible in the record. A buyer should focus the physical inspection on the front suspension and braking system, given the history of fractured coil springs, a worn rear brake disc, and a degraded ball joint gaiter. Check the condition of both front lower suspension arms and the anti-roll bar links for play or knocking, and verify that the replacement coil springs are sitting evenly with no signs of sag or fresh corrosion. The rear brake pipe has been flagged for corrosion in three consecutive tests, most recently in November 2025, so a close visual check of the entire rear brake line run, particularly where it passes over the rear axle or along the subframe, is essential. Surface rust may be manageable, but any pitting, flaking, or grease-covered sections suggest the pipe is being masked rather than replaced. Inspect the offside front lower windscreen area carefully; repeated damage in the same location can indicate a poor screen seal or bodywork distortion that may eventually compromise structural integrity around the A-pillar. Tyre wear has been flagged multiple times, including both rears below the legal limit in 2023 and inner edge wear on both fronts in 2024, so check alignment and wheel tracking settings, as well as the condition of the inner sidewalls for uneven wear patterns. Finally, with nearly 140,000 miles on the clock, examine the exhaust system for corrosion, listen for any blow or rattling from the catalytic converter area, and verify that exhaust emissions remain stable under load, as high-mileage petrol engines of this age can develop minor leaks or sensor drift that may not yet trigger a fault code.