2020 Audi A4 Allroad Sport 40TDI Quat SA 2.0L Diesel · WD20 AAX

A consistently clean DVSA record across three tests establishes this 2020 Audi A4 Allroad as a vehicle with a strong documented roadworthiness profile, the most recent pass on 19 November 2025 carrying only a single advisory relating to the offside rear tyre. With no advisories recorded on the 2023 and 2024 examinations, the trend over the documented period has been one of stable compliance rather than progressive deterioration. The single advisory, however, warrants measured attention: a tyre worn on its edge rather than across the tread face frequently points to an underlying geometry or suspension issue rather than simple tread depletion, and on an Allroad with air suspension or adaptive damping this can be indicative of a component that has shifted alignment out of specification. The absence of any structural, brake, exhaust, or corrosion advisories across the three tests is a positive indicator for a vehicle of this age and specification. At 97,415 miles over roughly six years, this Allroad is accumulating mileage at a rate of approximately 16,236 miles annually, which is notably above the average for a vehicle in this age bracket and substantially higher than typical private-use patterns. This level of use has direct mechanical consequences: brake discs and pads, clutch components (if manual, though this is an automatic), diesel particulate filter loading, dual-clutch or torque converter wear, and suspension bushes and linkages will all be subject to accelerated consumption. The relatively short intervals between tests and the consistent annual mileage progression suggest a vehicle that has remained in active service rather than one with extended standing periods, which is generally favourable for component longevity but means wear-related items should be expected to be closer to their service thresholds. There are no anomalous mileage gaps or rapid jumps in the recorded figures that would suggest clock irregularities or extended lay-up. Given the offside rear tyre edge wear advisory, particular attention should be paid during a test drive to any pulling or wandering from the rear axle, especially over undulating surfaces or during braking. Listen for clonking or knocking from the rear suspension over speed humps and rough roads, which could indicate worn trailing arm bushes, anti-roll bar linkages, or the rear air spring assemblies themselves if fitted. Inspect the offside rear tyre shoulder closely for feathering and check that the tread wear is even across both rear tyres, as uneven inner or outer edge wear on an Allroad frequently traces back to perished rear bushings or a sagging air strut that has altered the camber setting. Test the electronic ride height system (where fitted) for full range of movement and listen for the compressor running excessively, as these units are known service items on this platform. Given the higher-than-average mileage, a thorough inspection of the braking system is also advisable: feel for any vibration or judder through the pedal under firm application, which would suggest warped front or rear discs, and listen for any grinding or scraping that could indicate worn pads sitting on minimum material. The diesel drivetrain warrants a cold-start observation if possible, checking for excessive smoke, timing chain rattle on initial start-up (a known area on the 2.0 and 3.0 TDI units), and any hesitation or flat spots that could indicate injector or DPF issues. Under the bonnet, look for oil leaks from the camchain cover, turbo oil feed pipes, and the sump area, all common seep points on higher-mileage TDI engines. Finally, verify the operation of the quattro drivetrain by driving on a loose surface if possible, feeling for any binding, shunt, or reluctance to transfer torque between axles, as the Allroad's haldex-type centre coupling and rear differential can exhibit wear at this mileage.