2015 Audi A6 2.0L Diesel · WN65 OCM

The vehicle most recently passed its MOT on 9 September 2025 with no defects recorded, which represents a clean and reassuring outcome at the point of test. Looking back through the recorded history, the maintenance trend appears broadly stable rather than worsening or improving dramatically. The 2025 pass follows a 2024 test where all four brake pads were flagged as wearing thin, and the most recent test indicates that remedial brake attention has evidently been carried out in the intervening period. Earlier advisories concerning light oil misting on the offside rear shock absorber were noted in both 2019 and 2023, but these did not escalate into test failures, suggesting the damping performance has remained within acceptable limits. Overall, the recurring items have been advisory rather than mandatory failure categories, and the absence of any structural corrosion, exhaust, steering, or major brake defects in the history is a positive indicator of the previous keeper's attention to maintenance. With 120,462 miles recorded over an 11-year life, this Audi A6 is averaging approximately 10,951 miles per year, which sits comfortably within the typical band for a vehicle of its age and class. There are no anomalous short gaps in the MOT record and the mileage progression between tests appears consistent and proportionate to the annual intervals, indicating regular use rather than long periods of standing or alternatively, excessive high-mileage accumulation. This kind of consistent usage pattern is generally beneficial for mechanical condition, as it keeps seals, brake components, and drivetrain parts active and less prone to age-related degradation such as dry boots, seized calipers, or stale fluids. However, at this accumulated mileage, wear-related items such as suspension bushes, anti-roll bar links, wishbone bushings, timing chain stretch (a known consideration on certain Audi petrol and diesel units), dual-mass flywheel condition (on manual variants), and automatic transmission mechatronics should all be considered as items approaching or within their serviceable lifespan. Given the advisory history around the rear shock absorber, particular attention should be paid to the offside rear suspension on a test drive. Listen for any clonking or knocking noises when traversing uneven road surfaces or speed bumps, as light oil misting can progress to more substantial leaks and reduced damping effectiveness over time. Uneven tyre wear, particularly on the rear axle, can be an indicator of weakened damping. The previous advisories on all four brake pads suggest the brake discs should be inspected for lipping, corrosion, and minimum thickness, as pads and discs are commonly replaced together; binding calipers can also be identified by pulling away from a junction and feeling for residual drag or uneven application. Any vibration through the steering wheel under braking would suggest disc warping, while a soft or spongy pedal would warrant immediate inspection of the hydraulic system. Beyond the recorded defects, a prospective buyer should conduct a thorough age-appropriate physical inspection. Tyres should be examined closely for sidewall perishing and cracking, which is common on a vehicle of this age regardless of tread depth, and the manufacturing date code should be checked on the sidewall. The 12V battery is likely approaching the end of its typical four to six year service life, so its state of health should be tested and the date code on the casing verified. Coolant, brake fluid, and automatic transmission fluid (if applicable) all degrade over time on a calendar basis rather than purely by mileage, so evidence of recent fluid changes via service history stamps is important. Inspect the underbody and wheel arches for any emerging corrosion, particularly around suspension mounting points and subframe areas. On the test drive, allow the engine to reach full working temperature before assessing performance, listen for any timing chain rattle on cold start, monitor for any unusual exhaust smoke, and confirm that all electronic systems, including the MMI infotainment, climate control, and driver assistance features, function correctly as electrical faults can be costly on premium vehicles of this age.