2009 Audi A6 2.0L Diesel · AV09 GWM

The latest MOT test in January 2026 resulted in a pass, though the overall maintenance trend is concerning. There is a persistent pattern of neglect regarding the braking system, with repeated advisories for worn, pitted, and scored brake discs and thin pads on both the front and rear axles appearing across multiple years. The severity of this trend was highlighted in early 2025 when the vehicle failed on a dangerous defect due to rear brake pads being worn below 1.5mm. While the vehicle is currently roadworthy, the history suggests a reactive approach to maintenance where components are run to the limit of legality rather than being replaced preventatively. The recorded mileage of 133,386 miles over 17 years averages approximately 7,846 miles per year. This is a typical usage profile for an executive saloon of this vintage, suggesting the vehicle has been used regularly rather than suffering from the degradation associated with long periods of standing. However, at this mileage, the drivetrain and chassis components have undergone significant duty cycles, meaning wear on consumables and structural rubber components is expected and should be scrutinised during a physical inspection. Prospective buyers should prioritise a comprehensive evaluation of the braking and suspension systems. The history of pitted and scored discs suggests that the braking surfaces may be degraded, which can manifest as a shudder through the steering wheel or brake pedal during deceleration. During a test drive, listen for metallic grinding or squealing, which indicates that the pads are critically low. Furthermore, the 2025 advisory regarding corroding suspension components, combined with earlier reports of worn upper suspension arm bushes and deteriorated anti-roll bar linkage dust covers, necessitates a check for suspension clunks or knocks when driving over uneven surfaces. Additional attention must be paid to the underbody, specifically the metal brake pipes which were flagged for corrosion in 2020. A technician should verify if these pipes have been replaced or treated to prevent fluid leaks. The recurring failures of registration plate lamps and the current minor windscreen damage are small issues, but they reinforce a pattern of overlooked maintenance. Finally, given the age and mileage, it is essential to verify the service records for the timing belt and water pump replacement intervals, as these are critical engine components that require replacement based on a strict calendar or mileage schedule to avoid catastrophic failure.