2013 Audi A6 S Line TDI Quattro Auto 3.0L Heavy oil · SB63 PTO

A pattern of recent instability in testing results is evident, characterized by two consecutive failures in late 2024 before returning to a clean status. While the vehicle achieved a pass on 07 December 2025 with no defects recorded, the period between November and December 2024 saw two failed inspections in quick succession. This recent volatility suggests that while the current roadworthiness status is clear, the vehicle has previously struggled to meet minimum standards, necessitating a closer look at any mechanical components that may have required rectification during those failure periods. The recorded mileage of 93,423 miles over a thirteen-year period averages approximately 7,186 miles per year, which represents a relatively low annual accumulation for a vehicle of this age and class. This usage profile suggests the vehicle has not been subjected to the heavy, high-frequency motorway or urban commuting typical of higher-mileage examples. Mechanically, this lower usage rate often means less cumulative wear on drivetrain components and suspension linkages, though it can also imply longer periods of inactivity which may affect the condition of rubber seals and various fluid-related components. Given the absence of specific defect descriptions in the provided DVSA records, a prospective buyer should focus on the mechanical areas most likely to have caused the two failures in late 2024. During a test drive, pay close attention to the steering and suspension for any unexpected knocks, clunks, or vibrations when traversing uneven surfaces, as these can indicate worn bushes or ball joints. Additionally, monitor the braking performance for any pedal judder or pulling to one side, which could point to issues with brake discs or binding calipers that may have been addressed during the recent repair cycle. The lack of recorded advisories in the most recent tests is a positive indicator of the current state of the vehicle, but the previous failures warrant a physical inspection of the underbody. You should check for signs of fluid leaks, such as oil misting or weeping from the engine and gearbox, and inspect the structural integrity of the subframe and exhaust system for any signs of corrosion. Ensuring that the vehicle drives straight without steering wander and that the suspension remains composed over bumps will help confirm that the issues leading to the 2024 failures have been fully resolved.