2011 Mercedes-Benz C 2.1L Diesel · ML11 NXO

The vehicle remains roadworthy but the maintenance trend shows a worsening progression regarding mechanical corrosion and component wear. While the most recent test in April 2026 at 88,890 miles passed, the tester flagged a corroded offside front brake pipe and front tyres reaching the legal limit. This follows a pattern established in April 2024, where both rear brake pipes were noted for similar corrosion, indicating that the braking system hardware is beginning to degrade across the entire chassis. At fifteen years of age, the recorded mileage of 88,890 miles represents a low average of approximately 6,000 miles per year. The data shows consistent usage patterns, for example, roughly 6,000 miles driven between the 2024 and 2026 tests. However, the low-mileage profile often correlates with accelerated degradation of rubber components and seals due to age, supported by the slight coolant leak from the water pump noted during the test at 78,391 miles. A buyer must prioritize a thorough physical inspection of the brake lines to determine the extent of the corrosion noted in multiple tests. The presence of grease or other material on these pipes suggests previous attempts to mask rust or poor sealing, which can hide structural thinning. Additionally, the offside front wheel bearing which was flagged with slight play in 2025 should be checked for noise or movement to ensure it has not progressed. The recurring uneven wear on the front tyres also suggests a potential alignment issue or worn suspension bushes that require professional attention to prevent premature tyre failure.