2012 Mercedes-Benz C 2.1L Diesel · RO55 DER

The most recent MOT test completed on 22 January 2026 resulted in a pass, though it highlighted an advisory regarding the offside front tyre being worn close to the legal limit and worn on the edges. Looking at the broader maintenance trend, the vehicle shows signs of age-related degradation that is becoming more frequent. While the 2024 test was clean, the subsequent 2025 and 2026 results indicate a move towards more frequent advisories concerning braking components and tyres. The history reveals a pattern of addressing significant corrosion issues, such as the major brake pipe failures in 2020, which suggests that while the vehicle is being maintained to pass inspections, the underlying wear on consumables and hydraulic lines is progressing. The recorded mileage of 139,092 miles for a 2012 vehicle equates to an average annual usage of approximately 9,935 miles. This is considered typical for a vehicle of this age and suggests a consistent usage pattern rather than extreme long-distance motorway driving or excessive short-trip urban use. From a mechanical standpoint, this level of mileage is sufficient to have caused predictable wear on suspension bushes, dampers, and drivetrain components, but it avoids the extreme high-mileage fatigue seen in commercial or heavy-duty vehicles. However, the buyer should remain mindful that at this stage of its lifecycle, rubber components and seals are reaching the end of their natural service life regardless of the relatively moderate mileage. During a test drive, particular attention must be paid to the braking system and suspension. The 2025 MOT history noted advisories for pitted and scored brake discs on all four corners, as well as corrosion on the nearside front brake pipe. You should listen for any grinding noises during braking or a pulsating sensation through the brake pedal, which could indicate warped discs or sticking calipers. Furthermore, the previous advisories regarding worn suspension arm bushes and anti-roll bar joints suggest that you should listen for knocks or clunks when driving over uneven surfaces or speed bumps, as these symptoms indicate failing rubber bushings or worn ball joints. The advisory on the offside front tyre being worn on the edges is also a significant indicator of potential wheel alignment issues or worn suspension geometry; check for uneven tread wear on the remaining tyres to ensure the vehicle tracks straight. Beyond the recorded defects, a physical inspection of the vehicle's underside is essential to check for ongoing corrosion, particularly around the brake lines and exhaust system, given the history of major failures in these areas. Inspect the tyre sidewalls for any signs of perishing or cracking, which can occur even if tread depth is sufficient, especially if the vehicle has had periods of standing. Given the age of the vehicle, verify the service history for evidence of scheduled fluid changes, specifically brake fluid and coolant, as these degrade over time regardless of mileage. Finally, check the condition of the battery and ensure the engine starts promptly, as older vehicles with moderate mileage can sometimes suffer from electrical component fatigue or parasitic draws.