2010 Mercedes-Benz C 2.1L Diesel · GD10 XAH

The vehicle remains roadworthy, but the maintenance trend shows a shift from component wear to emerging structural degradation. The most recent test in September 2025 at 137,731 miles returned a pass despite multiple advisories for pitted front brake discs and corrosion on the rear sub-frame. While the car cleared the previous 2024 test, the appearance of structural corrosion indicates that the vehicle is entering a phase where age-related metal decay will require more proactive monitoring. At 137,731 miles over 16 years, the car has averaged approximately 8,600 miles per year, which aligns with typical usage for a vehicle of this age. The record shows consistent usage patterns, with roughly 7,700 miles covered between the September 2024 and September 2025 tests. This steady mileage suggests the vehicle has not sat idle for long periods, though the consistent use has contributed to the gradual degradation of rubber components and the oxidation of metal surfaces seen in the history. A buyer must conduct a thorough physical inspection of the rear sub-frame to determine the depth of the corrosion noted in 2025. While the tester marked it as not seriously weakened, rust on Mercedes-Benz chassis components can accelerate rapidly if left untreated. The inspection should also target the front brake system, as the recurring pitting and scoring noted in both 2022 and 2025 suggest the discs are reaching the end of their functional life or are suffering from environmental exposure. The suspension system also requires attention regarding the rear shock absorbers. The light misting of oil recorded in 2022 and 2023 indicates seals are failing, which eventually leads to total damping loss. Furthermore, the failure in 2024 due to binding rear service brakes suggests that the calipers or mechanisms are prone to seizing. A buyer should verify that these binding issues were properly rectified and check for current free-free operation to prevent uneven wear or overheating.