2006 Mercedes-Benz C 1.8L Petrol · CE06 DTY

The most recent MOT test on 27 May 2025 resulted in a Pass, which is a positive immediate indicator for any prospective purchaser. However, that same date also produced a Fail with three major defects that were evidently rectified before the car was re-presented and passed, suggesting that the remedial work was carried out specifically to clear the test. Looking at the broader history, the maintenance trend appears to be one of gradual deterioration rather than stable condition. Across the recorded tests, there has been a recurring pattern of rear brake binding first flagged in September 2022 and again in November 2023, alongside a Dangerous defect for an offside rear brake pad worn below 1.5 mm, which is a serious safety concern. The more recent advisories concerning corroded rear brake pipes, deteriorated brake hoses, and corroded rear suspension components and sub-frame indicate progressive wear that, while not yet at failure point, will require attention in the near term. With 149,909 miles recorded against a vehicle now around twenty years old, the average annual mileage of roughly 7,495 miles is broadly typical for a car of this vintage. There is no evidence of significant standing time or excessive accumulation, and the gap between the 2021 and 2022 tests followed by tests in late 2023 and mid 2025 suggests reasonably consistent usage. That said, the accumulated mileage is substantial, and combined with the vehicle's age, wear on suspension, braking, and drivetrain components is to be expected. The recurring brake and suspension advisories on a car of this age and mileage are entirely consistent with the natural degradation of consumable and structural components. Given the history of rear brake binding, which was a Dangerous defect in 2023 and a Major failure in 2022, particular attention should be paid to the offside rear caliper on a test drive. With the engine running and the vehicle stationary, listen for any scraping or grinding from the rear wheels, and feel for excessive heat on the offside rear hub shortly after driving, which would indicate the caliper is failing to release fully. On the road, listen for clonks or knocking from the rear suspension over bumps, as the advisories on the anti-roll bar D bushes, upper and lower arms, and coil springs suggest wear that may have progressed since the test. Uneven tyre wear, particularly on the inner edges, can also point to worn suspension bushes or weakened springs, so a close inspection of all four tyres for both tread depth and sidewall cracking from age is advisable, given that a 2006-vintage tyre will be well into its service life regardless of remaining tread. Beyond the recorded defects, a twenty-year-old Mercedes of this mileage warrants thorough age-related inspection. Verify the service book history and confirm that brake fluid, coolant, and automatic transmission fluid have been changed on a calendar basis rather than purely by distance, as these degrade with time. Check the condition of the 12V battery, as a unit of this age is likely nearing the end of its service life and a weak battery can cause erratic electronic behaviour. Examine the exhaust system, particularly the rear silencer and mounting rubbers, for corrosion, and inspect the engine bay and undertray for any oil or coolant leaks from aging gaskets and seals. The advisories on corroded brake pipes are particularly important to monitor, as surface corrosion can progress to pinhole leaks, so a physical inspection of the underbody pipework for flaking or bubbling is strongly recommended before purchase. Finally, given the headlamp aim and engine management light issues that caused the May 2025 failure, ensure both systems are functioning correctly and that any diagnostic trouble codes have been properly cleared and rectified rather than temporarily suppressed.