2020 Audi A6 S LN BLK ED 45 Tfsi Quat SA 2.0L Petrol · AP70 EXH

A relatively clean and consistent MOT record supports the roadworthiness credentials of this 2020 Audi A6 S Line Black Edition 45 TFSI quattro, with the most recent test on 18 August 2026 returning a pass. Across four annual examinations, only the latest entry carries advisories, and both relate to surface corrosion at the rear suspension spring mounting areas on the nearside and offside. The 2025, 2024, and 2023 tests were all clean with no advisories recorded, indicating that prior mechanical condition has been solid and that any deterioration is a recent development rather than a long-standing pattern. The advisory wording specifically states the corrosion is not considered excessive, which means the mounting surfaces remain structurally sound for now, but the appearance of corrosion on both rear corners simultaneously is worth monitoring as the vehicle continues to age. Annual mileage of roughly 6,230 miles is broadly typical for the age and class of the vehicle, suggesting consistent moderate use rather than extremes of high-mileage motoring or extended periods of standing. With 37,382 miles accumulated over six years, mechanical wear on major drivetrain and suspension components should be proportionate to this figure, meaning the engine, transmission, and quattro drivetrain have not been subjected to particularly harsh service. There are no notable gaps in the testing record or unexplained mileage jumps, which allows a clearer interpretation of the wear pattern. The steady annual usage is a positive indicator for overall component health, particularly for items that degrade with disuse such as rubber boots, dampers, and brake components. Given that the only flagged items are corrosion advisories at both rear suspension spring mountings, attention during any physical inspection should focus on those areas. It is worth asking the seller to raise the vehicle on a ramp so the rear spring seats and surrounding bodywork can be visually examined for any bubbling, scaling, or through-corrosion developing on the inner wing or axle mounting zones. On a test drive, listen for any clonking or knocking from the rear suspension over uneven surfaces, particularly over speed humps and potholes, as advancing corrosion at the spring mounting can eventually compromise bushing integrity and component retention. The steering should feel precise with no vagueness or rear-end instability, and the car should remain composed over undulating roads without any sagging from one corner. Surface corrosion at this stage is consistent with a six-year-old vehicle exposed to winter road treatments, but the bilateral nature of the advisories suggests the rear axle area may be worth keeping under closer annual observation. Beyond the advisories, a prospective buyer should still conduct standard due diligence appropriate to a quattro automatic of this age and specification. Check that all four tyres are of matching brand, size, and tread depth, as the quattro system is sensitive to rolling radius differences, and inspect the alloy wheels for kerbing damage which is common on Black Edition trim. Listen for any whistling or vibration that could indicate a worn wheel bearing, particularly as these are known to require attention on higher-mileage Audis. The brake discs and pads should be visually inspected for wear lipping on the disc edges and remaining pad material, and the brake pedal should feel firm with no judder under hard stopping. Finally, confirm that the vehicle history is fully documented, that all warning lamps extinguish promptly after engine start, and that the infotainment and driver assistance systems function correctly, as electrical and module-related faults can be costly to rectify on this generation of A6.