2017 Mercedes-Benz CLS 2.1L Diesel · N1 RPA

The 2017 Mercedes-Benz CLS presents a stable but high-mileage roadworthiness profile, with the most recent MOT passed on 1 September 2025 at 109,197 miles. The only advisory at that test was a parking brake lever sticking slightly, a minor fault that has persisted since at least September 2024 without worsening. The vehicle has not failed an MOT since the September 2024 test, where exposed ply on the offside front tyre and worn rear tyres were flagged. Those tyre issues were rectified before the retest passed on the same day, suggesting prompt attention to immediate failures rather than neglect. The mileage accumulation tells a clear story of sustained high use. Between 22 August 2023 at 83,121 miles and 2 September 2024 at 95,902 miles, the car covered 12,781 miles in just over a year. The following year to 1 September 2025 added another 13,295 miles, bringing the total to 109,197. At roughly 12,133 miles per year over nine years, this is well above the typical UK average. The MOT record shows no significant gaps in testing continuity, with annual tests recorded consistently from 2022 onward, which supports the mileage figures as genuine rather than indicative of long periods standing idle. A buyer inspecting this vehicle in person should focus on the components that have drawn repeated attention across the MOT history. The rear brake pads were flagged as wearing thin in August 2023 at 83,121 miles, and with over 26,000 miles covered since, the rear braking system warrants a thorough check of pad thickness, disc condition, and caliper operation. The parking brake lever sticking advisory has appeared in both the 2024 and 2025 tests without resolution, which could point to a deteriorating handbrake mechanism, seized cables, or binding rear calipers that have not been addressed. Tyre wear has been a recurring theme, with both rear tyres worn to the legal limit and the offside front tyre failing with exposed ply in September 2024. This pattern suggests possible alignment issues, aggressive driving, or suspension component wear affecting tyre contact patches. The offside front wheel repair noted in August 2022 at 70,642 miles is worth investigating for any lingering structural or tracking concerns. Given the high annual mileage, the suspension bushes, coil springs, and dampers should be inspected for fatigue and corrosion, as sustained use accelerates wear on these components. The exhaust system and emissions controls deserve attention too, as high-mileage petrol or diesel engines can develop catalyst degradation or exhaust leaks over time. The MOT record itself is clean of structural corrosion or serious mechanical failures, which is reassuring, but the cumulative wear pattern from consistent high-demand use means this car will likely require more frequent consumable replacements than a lower-mileage equivalent. A pre-purchase inspection focusing on the rear braking system, parking brake mechanism, tyre condition, and suspension geometry would be a prudent step before committing.