2004 Audi A6 3.1L Petrol · KV54 TYO

Persistent structural and component-level vulnerabilities define the mechanical history of this Audi A6, which most recently secured a pass on 15 July 2025 despite a collection of advisories concerning tyre condition, lighting, and suspension integrity. While the vehicle has successfully navigated its recent annual inspections, the record is punctuated by significant failures in 2023 and 2022, highlighting recurring issues with tyre structural integrity, wheel security, and electronic safety systems. The transition from a major failure involving exhaust emissions and tyre failure to a pass with advisories suggests a pattern of reactive maintenance rather than proactive preventative care. With 128,456 miles accumulated over 22 years, the vehicle averages approximately 5,839 miles per annum, a figure that sits well below the typical usage profile for a vehicle of this class and age. This lower-than-average mileage does not inherently guarantee mechanical longevity, as the history of failures—specifically the 2023 tyre and wheel fixing issues—indicates that the vehicle has been subjected to periods of harsh or neglected operation. Prospective buyers should be aware that such low usage can lead to the deterioration of rubber components, seals, and braking systems, which may not have been exercised regularly enough to prevent the onset of the pitting and corrosion noted in previous test cycles. During your test drive, pay particular attention to the offside front shock absorber, which was flagged in the 2025 inspection for light oil misting. Listen closely for any clunking or knocking sounds when traversing uneven road surfaces, as this can indicate that the damping efficiency is compromised or that associated suspension bushes have degraded. Furthermore, given the history of pitted and corroded brake discs, observe the pedal feel for any pulsing or judder during firm braking, which would signal that the discs are warped or heavily scored. Ensure the vehicle tracks straight under braking, as uneven wear on the front tyres—noted as a recent advisory—can also be a symptom of misaligned steering geometry or worn track rod ends. Finally, the previous failure regarding the supplementary restraint system warning lamp and the recurring advisories concerning undertrays obscuring the undercarriage necessitate a thorough visual inspection. Since the undertrays prevent a clear view of the engine and transmission, you should look for signs of fresh oil drips on the ground after the vehicle has been stationary. Verify that all dashboard warning lights illuminate upon ignition and extinguish once the engine is running, particularly the airbag system, to ensure that previous electrical faults have been rectified rather than bypassed. The condition of the front headlamp lenses should also be inspected to confirm that the reported product on the lens has not permanently clouded the plastic, which could impact visibility during night driving.