2008 Audi A6 3.0L Diesel · AM08 AXA

Chronic front suspension wear is the defining mechanical theme of this 2008 Audi A6, with the front lower arm bushes and upper arm bushes flagged on both nearside and offside as worn at the January 2024 MOT, sitting alongside a pitted rear brake disc. While the test outcome was a pass, the volume of suspension advisories on a single inspection is a clear signal that the front axle linkage is approaching the end of its service life. The 2021 test history is particularly concerning, recording a dangerous defect for an exposed ply on the offside front tyre and an excessively worn offside front anti-roll bar pin or bush, the latter requiring a partial rectification before the same-day pass. That anti-roll bar bush finding, combined with the widespread arm bush wear noted three years later, suggests the front anti-roll bar and lower arm pivot points are subject to progressive deterioration rather than isolated damage. At 149,944 recorded miles over approximately 18 years, this A6 averages around 8,330 miles annually, which is broadly typical for its age and indicates steady, regular use rather than long periods of inactivity or extreme high-mileage driving. There is a roughly fourteen-month interval between the December 2022 and January 2024 tests, with no apparent abnormal mileage jump within the recorded figures. The relatively even usage pattern is consistent with a vehicle that has been exercised consistently, which generally benefits the drivetrain, exhaust system, and brake components by preventing corrosion from setting in through prolonged standing. That said, nearly 150,000 miles of consistent motoring means consumable wear items and suspension joints on a vehicle of this age are now squarely in the zone where periodic renewal should be expected. For a prospective buyer, the priority inspection area is the front suspension geometry. Listen and feel for knocking or clonking noises from the front axle over uneven surfaces, particularly when traversing speed bumps or potholes, as this would indicate the worn arm bushes and anti-roll bar pin identified in 2021 and 2024 have now progressed beyond advisory tolerance. On the move, check for vague steering response, imprecise turn-in, or any shudder through the steering wheel under braking, which could suggest the worn bushes are allowing excessive movement or that the brake discs themselves are suffering from run-out due to corrosion. Carry out a thorough visual inspection with the wheels turned to full lock, checking for perished or cracked lower arm bushes, perished anti-roll bar drop links, and any movement when the wheels are levered by hand. The rear brake discs, noted as pitted and scored in 2024, warrant direct attention. On a test drive, listen for any scraping or metallic rumble that could indicate the corrosion has advanced to a stage where the disc surface is juddering under pedal pressure, and check for pulsation through the brake pedal during firm, steady stops. Given the cumulative suspension wear and high overall mileage, a precautionary inspection of the front subframe mounting points and rear brake pipe condition for any corrosion is sensible, as these are common MOT failure points on high-mileage Audi chassis. Finally, ensure the advisory items from 2024 have either been rectified or are reflected in any negotiation, as the combination of four suspension arm advisories and a worn rear brake disc suggests an upcoming spend on front axle refreshment and possibly rear brake discs is likely.