2011 Mercedes-Benz C 2.1L Diesel · WF61 RGO

The vehicle presents a borderline roadworthiness profile with a worsening maintenance trend heading into its most recent test. The November 2025 pass at 127,332 miles followed a failure just one day earlier on 3 November 2025 at 127,321 miles, where all four tyres were at or near the legal limit with uneven inner-edge wear. That pattern of wear across all corners suggests prolonged neglect of tyre pressures, wheel alignment, or suspension geometry rather than a single puncture event. The tester also flagged a minor central exhaust leak, corroded rear brake hose ferrules, and lipped rear brake discs in both tests, indicating the braking and exhaust systems have been deteriorating without proactive repair. A cracked lower windscreen and a damaged offside front splash guard were carried over from the failure to the pass, suggesting cosmetic and secondary items are being left unrepaired. The mileage record tells a story of sharply uneven use. Between November 2022 at 75,109 miles and November 2023 at 95,977 miles, the car covered 20,868 miles in a single year. Then the pace collapsed: only 14,547 miles were added over the following twelve months to November 2024, and a mere 1,798 miles were covered in the year leading to the November 2025 test. That dramatic drop in annual mileage from 2023 to 2025 raises the possibility of extended periods standing still, which would explain the localised corrosion on brake hose ferrules and the exhaust leak rather than high-speed wear. The 2024 test also recorded play in the steering rack inner joint, a fault that persisted from 2023, confirming that known mechanical wear items have been left to deteriorate across multiple test cycles. A buyer should treat the braking system as the primary concern. Lipped rear discs, corroded hose ferrules, and a history of front disc wear noted in 2024 point to a car that has been driven on degraded braking components. The rear calipers and handbrake mechanism need close inspection for binding or seized adjusters, common on Mercedes C-Class models of this era. The exhaust minor leak at the centre section must be examined for corrosion-through rather than a simple gasket failure, as the age and standing periods make rust-through more likely. The uneven tyre wear demands a full four-wheel alignment check and inspection of front suspension bushes, ball joints, and the steering rack inner joints, where play has been flagged twice. The oil leak noted in 2023 at 95,977 miles may have worsened; check the engine rocker cover gasket and the rear main seal area for fresh weeping. Finally, inspect the inner wing and sill areas near the damaged splash guard for hidden corrosion, as standing vehicles often trap moisture in these sections.