2012 Mercedes-Benz C 1.6L Petrol · GF62 FAM

The most recent DVSA examination on 17 April 2026 resulted in a clean pass with no advisories or defects recorded, which is a positive immediate indicator. However, examining the trajectory over the past four years reveals a mixed picture that warrants careful attention. In 2025 the vehicle passed with several advisories, and earlier in that same year it failed on a major engine management MIL (Malfunction Indicator Lamp) issue together with deteriorated anti-roll bar ball joint dust covers on both sides, both of which were subsequently rectified. The advisories relating to corroded brake pipes have been a recurring theme since at least 2023, and the offside front tyre has now twice been flagged as worn close to the legal limit or on its edge, suggesting a persistent wear pattern that has not been fully resolved. Overall, the maintenance trend appears reasonably stable but with chronic under-the-car deterioration issues that are typical of a 14-year-old Mercedes-Benz, particularly in respect of the brake hydraulic system and front suspension ancillaries. With 71,445 miles recorded over approximately 14 years, this C-Class has covered an average of around 5,100 miles annually, which is well below the typical mileage for a car of this age and significantly under the national average. Such low annual usage suggests either a predominantly short-journey driver profile or extended periods of standing between uses, both of which carry their own mechanical consequences. Short journeys are particularly hard on diesel or petrol engines because the oil, coolant and exhaust system never fully reach operating temperature, leading to moisture accumulation, oil dilution and accelerated component degradation. Conversely, prolonged standing can cause brake calipers to seize, brake discs to corrode on the surface, tyres to develop flat spots or sidewall perishing, the 12V battery to sulphate, and various rubber seals and gaiters to dry out. The current odometer reading should be physically cross-checked against the service book and any V5C or MOT history documentation for mileage consistency. Given the documented history, a prospective buyer should pay particular attention to the brake hydraulic system. The recurring advisories for corroded brake pipes indicate that the underbody brake lines are beginning to suffer from surface corrosion, which on a Mercedes-Benz of this vintage is a known issue. On inspection, the pipes should be examined along their full length, especially at the underside of the vehicle where salt and road grime accumulate. Even a light covering of grease is a classic cosmetic fix, so tap the pipes gently to check for pitting, and look at the unions for any weeping of brake fluid. A test drive should include firm pedal applications from speed to feel for any sponginess, and listen near each wheel for the scraping of corroded discs on cold mornings. The front suspension also demands close scrutiny. The MOT history shows escalating issues with the anti-roll bar ball joint dust covers on both sides, deteriorating from advisory in 2023, to minor in 2024, to a major failure point in early 2025. This progression is typical of Mercedes-Benz W204 chassis vehicles of this era, where the front anti-roll bar drop links wear out relatively early. On test, listen for clonks or rattles over speed humps and uneven road surfaces, and push down firmly on each front corner to check for excessive body movement or knocking from the anti-roll bar assembly. Beyond these recorded concerns, the low mileage means that age-related checks are equally important: inspect the tyres closely for sidewall cracking and perishing, even if the tread appears adequate, as rubber degrades with time regardless of wear. Verify the production date code on each tyre. Check that the 12V battery holds charge under load, examine the coolant, brake fluid and transmission fluid for any signs of discolouration or contamination, and request evidence of a recent cambelt or timing chain service and confirmation of the ASSYST service interval history, as Mercedes-Benz maintenance schedules are time-based as well as mileage-based. A pre-purchase inspection on a ramp by a Mercedes-Benz specialist or independent German vehicle garage would be strongly advisable.