2010 Audi A6 LE Mans TDI CVT 2.0L Heavy oil · CL02 SEL

Recurring failed MOT attempts followed by immediate passes suggest a pattern of administrative or minor technical rectifications rather than a history of structural decay, as the vehicle has maintained a clean record of defects across its testing history. While the car successfully passed its latest inspection on 18 March 2025, the presence of multiple failed tests in the immediate lead-up to recent annual certifications indicates that the vehicle has required last-minute intervention to meet roadworthiness standards. This trend of failing and passing within a matter of days points to a history where compliance is achieved only after specific, albeit unrecorded, adjustments are made, necessitating a cautious approach to the mechanical integrity of the drivetrain and safety systems. Accumulating approximately 92,716 miles over a sixteen-year lifespan results in an average of roughly 5,795 miles per year, a figure significantly below the typical usage profile for a diesel-powered Audi A6 of this era. This low annual mileage often implies that the vehicle has spent considerable periods stationary, which can lead to the accelerated degradation of rubber suspension components, seals, and gaskets that rely on regular movement to remain supple. Furthermore, the intermittent nature of the testing intervals suggests the vehicle may have been taken off the road for extended durations, potentially leading to the seizure of brake components or the development of surface corrosion on critical underbody elements that may not have been captured during the brief MOT inspection process. Prospective buyers should prioritise a rigorous test drive to identify potential issues with the CVT transmission, which is sensitive to irregular usage and requires smooth power delivery without hesitation or judder during acceleration. Given the age and low-mileage profile, listen intently for any knocking or clunking noises from the front suspension when traversing uneven surfaces, as the control arm bushes and ball joints are common wear items on this chassis that may have perished during periods of inactivity. Any steering vagueness or a tendency for the vehicle to pull to one side should be investigated as a sign of uneven wear in the steering rack or alignment geometry, which often remains hidden until the car is under load. Inspect the undercarriage for any signs of recent remedial work or masking of corrosion, particularly around the subframe mounting points and brake lines, as the history of last-minute test passes could indicate previous repairs to these areas. During the drive, ensure the brake pedal feels firm and consistent, as binding calipers are a frequent complication in vehicles that have seen limited annual mileage. Furthermore, verify that the engine reaches and maintains its optimal operating temperature without fluctuations, as the cooling system components and thermostat housing can become brittle over time, and any signs of oil misting around the engine bay should be scrutinised to ensure they are not masking deeper leaks that could impact long-term reliability.