2012 Audi A6 2.0L Diesel · ST12 GPU

A high-mileage diesel saloon of this age will always carry more mechanical risk than a lower-driven example, and although the most recent recorded DVSA interaction on 19 October 2021 shows a pass, the duplicate entry on the same date also lists a failure with no defects recorded, a combination that suggests the failure was administrative rather than mechanical and was rectified and re-presented immediately for the pass. With no advisories whatsoever across the available record, there is no documented pattern of corrosion, suspension wear, or brake component deterioration to weigh against the odometer, but equally there is nothing in the MOT file to reassure a buyer that the underside, subframe, brake pipes, or coil springs have been formally inspected as recently as might be hoped. Any prospective purchase therefore leans entirely on a physical inspection rather than the MOT paperwork for evidence of structural and chassis integrity. The recorded 204,738 miles accumulated over roughly fourteen years equates to around 14,600 miles annually, which is substantially above the national average and points to genuinely high usage rather than occasional or low-mileage operation. With no DVSA test history shown between 2021 and today, there has effectively been a multi-year absence from the annual testing regime visible in the record, which itself can mean either that the vehicle passed subsequent tests without issue or, more likely given the running costs of high-mileage executive diesels, that it has been off the road for a period or operated without recent testing. Either way, the buyer should confirm continuous MOT presence through DVSA directly, as any long gap where the car was untested represents an unknown in terms of corrosion progression and component wear on an Audi of this vintage. For a test drive, attention should centre on the areas most prone to wear on a high-mileage C6/6 generation A6. Listen for clonks or knocks from the front suspension over speed humps and uneven surfaces, particularly from the upper and lower wishbones, anti-roll bar drop links, and front subframe mounting bushes, all of which are known to deteriorate long before the rest of the chassis. On the road, check for steering wander, vagueness off-centre, or a pull under braking, any of which would suggest worn front suspension geometry or unevenly worn brake discs rather than alignment alone. The brake pedal should feel firm with no excessive travel, and any judder through the pedal or steering wheel under firm braking would indicate warped front discs, which are a common advisory item on high-mileage examples. The engine bay and underside warrant close scrutiny given the mileage and the age of the car. Look for oil misting around the cam chain area, turbo oil feed pipes, and injector seals, as these are all typical seepage points on the diesel units fitted at this time. On the ramp or over a pit, examine the front subframe, brake lines along the chassis rails, and rear suspension components for any surface corrosion or underbody scaling that has had the chance to develop. Verify that all electrical systems function correctly, particularly the MMI infotainment, dual-zone climate control, and parking sensors, as water ingress through perished seals can cause failures on these vehicles. A compression test and a thorough scan for any logged DTCs would be money well spent before committing to a purchase of a 200,000-plus mile executive saloon.