2010 Mercedes-Benz C 2.1L Diesel · OY60 RCF

The most recent DVSA examination on 23 September 2023 resulted in a Pass, although two advisories were issued for thin front and rear brake pads. These advisories are not failures but indicate that the friction material is approaching the point at which renewal should be scheduled; given that the vehicle has since covered further mileage, the prospective buyer should expect that the pads may now require replacement, and the discs should be inspected for wear or lipping at the same time. Reviewing the broader trend, the record shows a deteriorating pattern: the vehicle passed cleanly in September 2021, but since then has accumulated advisories for corroding brake pipes, a major failure for severely corroded rear subframe, and an engine management warning light indicating a malfunction. This trajectory suggests that corrosion-related deterioration of underbody components and brake hydraulic lines is an ongoing and progressive concern rather than a one-off issue, and the overall maintenance trend should be regarded as worsening. The recorded mileage of 132,620 miles over a 16-year life equates to approximately 8,289 miles per year, which is broadly average for a car of this age and suggests reasonably consistent use rather than long periods of standing or exceptionally hard driving. The MOT history does not reveal any significant gaps in testing that would imply extended inactivity, although the absence of recorded mileages between tests means that year-on-year accumulation cannot be verified precisely. Consistent annual usage of this nature is mechanically beneficial, as regular running helps keep seals, brakes, and the exhaust system free from the corrosion and seizure issues that affect low-mileage or stored vehicles. Nonetheless, the 132,620-mile total is substantial for a 2010 Mercedes-Benz C-Class, and high-mileage items such as the timing chain, turbocharger (if fitted), automatic transmission torque converter, and suspension bushes will be subject to commensurate wear. The most significant recurring concern in the MOT history is the progressive corrosion of the brake pipes, which moved from advisory level in 2019 and 2020 to a major failure in August 2021, when all four brake lines were recorded as excessively corroded. This pattern is characteristic of older Mercedes-Benz vehicles of this era, where the original steel brake lines corrode from the inside out, particularly in regions that use road salt. A prospective buyer should have the entire brake hydraulic system, including the four-way union joints, flexi hoses, and the lines running along the underbody and subframe, physically inspected for surface rust, pitting, and weeping. Following the August 2021 failure it is reasonable to assume that the brake pipes were renewed, but confirmation of this work, ideally with an invoice, is essential. The subframe corrosion noted as a major failure in September 2022 is also a serious structural concern; Mercedes-Benz C-Class subframes of this generation are known to suffer from rust at the mounting points, and any remedial welding or replacement carried out must be verified for quality and longevity, as poorly repaired subframes can fail structural inspection at subsequent MOTs. On a test drive, the buyer should listen for any clonks or knocks from the rear suspension, particularly over speed humps and uneven surfaces, as these symptoms can indicate either subframe mounting degradation or worn rear suspension bushes. Beyond the recorded defects, a vehicle of this age and mileage warrants a series of age-appropriate physical inspections prior to purchase. The tyres should be examined closely for sidewall cracking and perishing, as rubber compounds degrade with age regardless of tread depth, and original-equipment specification tyres fitted many years ago may be due for renewal even if the tread appears acceptable. The 12-volt battery should be load-tested, as Mercedes-Benz vehicles of this era are sensitive to voltage drops which can cause a range of electrical anomalies, and a battery older than five years is a likely candidate for imminent replacement. Brake calipers and slider pins should be checked for free movement, particularly on vehicles that may have stood for extended periods, and the discs inspected for any significant corrosion pitting or binding. Fluid services are entirely calendar-based rather than mileage-based, so the buyer should verify when the brake fluid, engine coolant, automatic transmission fluid (if applicable), and differential oil were last changed, as neglected fluids accelerate internal wear of seals, gaskets, and hydraulic components. Finally, given the engine management light history from 2022, it is prudent to have a full diagnostic read carried out to confirm that the underlying fault has been resolved, and to inspect the underbody comprehensively for any fresh corrosion or fluid leaks before committing to purchase.