2015 Audi A6 3.0L Diesel · 47 DB

The most recent MOT test dated 18 July 2026 resulted in a PASS, though it was accompanied by five advisories and immediately followed a failed submission on the same date, which suggests the vehicle was rectified and re-presented for test within hours rather than undergoing deeper mechanical restoration. The advisory pattern reveals a concerning trend of wear-related deterioration when examined alongside the 2025 test, which flagged identical front brake pad wear and rear tyre edge wear issues. With the 2024 test having failed on both front suspension arm pins or bushes, the maintenance trajectory is one of gradual worsening rather than stable upkeep, particularly given that the front brake pads have been flagged as wearing thin across two consecutive tests without evidence of replacement. The escalation from a clean pass in 2024 to multiple advisories in 2025 and 2026 indicates that the vehicle is entering a phase where consumable and suspension components require active attention. The recorded mileage of 94,436 miles over an 11-year lifespan equates to approximately 8,585 miles annually, which is broadly typical for a vehicle of this age and indicates consistent rather than sporadic usage. There are no significant gaps in the testing history to suggest prolonged standing periods, which is mechanically favourable as it reduces the risk of seized brake calipers, perished rubber components, and degraded fluids from inactivity. However, the steady accumulation of miles on a premium executive saloon such as the Audi A6 means that drivetrain wear, turbocharger fatigue (if applicable), and automatic gearbox degradation should be considered, alongside the more visible suspension and braking wear evidenced in the MOT record. The recurring front brake pad advisory across the 2025 and 2026 tests is a primary area of concern, as the pads have evidently not been replaced between tests and are likely approaching the minimum friction material threshold. On a test drive, the buyer should listen for any metallic squealing or grinding from the front calipers, particularly during low-speed manoeuvres, and feel for brake shudder or pulling to one side under firm pedal application, which could also indicate worn or warped front discs requiring simultaneous replacement. The tyre advisories are equally telling, as all four wheels have been flagged for edge wear, which on a front-wheel-drive or quattro Audi typically points to misalignment of the front suspension geometry, worn suspension bushes, or tracking irregularities. This pattern correlates directly with the 2024 suspension arm bush failure and suggests that the underlying cause may not have been fully resolved, so the buyer should perform a thorough road test listening for clonks or knocking from the front end over speed humps and uneven surfaces, and visually inspect the inner and outer tyre shoulders for feathered wear patterns. Beyond the documented defects, a vehicle of this age and mileage warrants attention to several age-related concerns that may not yet have manifested as MOT failures. The timing chain or cam belt service interval should be verified against the manufacturer's schedule, as Audi A6 engines of this era are particularly sensitive to timing component failure, and any evidence of timing chain rattle on cold start would be a serious warning. The 12V battery should be tested for cranking performance, particularly if the vehicle has been used for short journeys, as a weak battery can cause electrical faults and starting issues. Brake fluid and coolant should be assessed for age-related degradation, with brake fluid typically requiring renewal every two years due to its hygroscopic nature, and coolant system integrity should be checked for leaks given the proximity of the timing chain area on these engines. Finally, the underbody should be inspected for corrosion, particularly around suspension mounting points, subframe bolt locations, and exhaust hangers, as salt exposure can compromise structural integrity on a vehicle now entering its twelfth year of service.