2017 Audi A6 S Line TDI Ultra S-A Heavy oil · SD17 FTU

The most recent MOT, carried out on 13 September 2022, was passed with no recorded defects, and the two preceding annual tests in 2021 and 2020 also returned clean passes. This uninterrupted sequence of fault‑free examinations suggests a maintenance regime that has been at least consistent, if not improving, over the last three years. The absence of advisories indicates that any routine servicing, wear‑item replacements and emissions checks have been kept up to date, and no emerging safety concerns have been flagged by the DVSA examiner. At nine years old the Audi A6 records 72 360 miles, which works out to an average of roughly 8 040 miles per annum. This figure sits comfortably within the typical UK usage pattern for a premium executive saloon and does not point to excessive wear from high mileage. However, the relatively modest annual distance could also imply periods of limited use or extended storage, which can give rise to age‑related degradation such as rubber hardening, fluid oxidation and corrosion in components that are not exercised regularly. Given the clean MOT history and moderate mileage, the buyer should focus on age‑related inspections. Examine the tyre sidewalls for cracking, dry rot or uneven wear that may indicate mis‑alignment or suspension wear; check the tread depth and confirm that the tyre age is below six years, as older tyres can lose elasticity even if tread remains adequate. Inspect the 12 V battery for sulphation and verify its cranking voltage; a battery older than four years often requires replacement regardless of apparent charge. Look for any signs of corrosion on the wheel bearings, suspension bushes and chassis joints, particularly around the front sub‑frame and rear trailing arms, as standing periods can accelerate rust formation. Verify that the brake discs are free of deep scoring, rust patches or uneven wear, and that the pads have sufficient thickness; binding calipers are a common symptom of infrequent use and can be identified by a pulsating pedal or shudder when braking. Finally, confirm that all time‑based fluid services have been observed: the engine oil and filter should have been changed at least every 10 000 miles or annually, the coolant and brake fluid typically require replacement every two to three years, and the DSG transmission fluid on this model benefits from a change at around 60 000 miles. Examine the under‑tray and exhaust system for any oil leaks, coolant seepage or cracked mounts, and listen for any abnormal noises such as clunks from the suspension or wind‑up from the steering rack during a test drive. A full service book with dealer stamps will give confidence that the vehicle’s scheduled maintenance has been adhered to, and any gaps should be investigated further before committing to purchase.