2010 Mercedes-Benz C 3.0L Diesel · P66 AAT

The vehicle remains roadworthy, but the maintenance history reveals a persistent trend of corrosion within the braking system. While the most recent test in January 2026 at 123,870 miles passed, the tester flagged corrosion on both the nearside and offside front brake pipes. This is a recurring issue dating back to 2021, with the February 2025 test showing the corrosion was noted as reaching the flexible sections. The persistence of these faults over multiple years without replacement suggests the previous owners have opted to monitor the condition rather than rectify the corroded lines. The mileage pattern is remarkably consistent for a sixteen-year-old vehicle, averaging approximately 7,700 miles per year. Between December 2022 and January 2026, the car covered 11,689 miles, indicating steady annual use. There are no signs of rapid mileage accumulation or long periods of inactivity that would typically lead to perished seals or seized components. This regular usage generally mitigates the risks associated with age-related dry-rot failures, though it confirms that the mechanical components have been subjected to standard environmental exposure and wear. A buyer must prioritise a physical inspection of the front brake lines and their connection points. Because the tester has noted the corrosion progressing toward the flexible hoses over several years, the risk of a future failure or fluid leak is elevated. The inspection should also check the current state of the rear tyres for alignment issues, as the 2022 advisory indicated uneven wear on the edges. Given the age of the vehicle, a thorough check of chassis integrity is necessary to ensure the corrosion seen on the pipes is not indicative of deeper structural decay.