2014 Audi A6 3.0L Diesel · GD14 AAZ

The most recent MOT test on the 2014 Audi A6 occurred on 2025-11-13, where it passed with a single advisory pertaining to the offside front tyre’s wear pattern, specifically showing excessive lateral wear consistent with directional instability or uneven load distribution. While this advisory does not affect roadworthiness, it does indicate a recurring issue that may warrant further investigation. Comparing this to the previous MOT failures, the vehicle’s maintenance trend is not improving but rather stabilising—there were no further tyre-related failures after the 2024-12-04 test, suggesting either corrective action was taken or the underlying cause has been mitigated. However, the earlier severe tyre defect—where the near-side front tyre exhibited a sidewall cut reaching the ply or cords—signifies a critical failure that must be addressed promptly, as such damage compromises tyre integrity and increases the risk of sudden blowout or structural failure. The recorded mileage of 81,989 miles for a vehicle aged approximately 12 years reflects a moderate annual usage rate of around 6,832 miles per year, which is within the expected range for a car of this age and class. While this mileage does not suggest excessive wear, it does imply consistent operational use, particularly over the past two years where the mileage increased by roughly 12,000 miles. This could accelerate wear on consumables such as brake pads, suspension components, and drivetrain elements, as well as contribute to fluid degradation over time. The absence of significant mileage gaps—such as long periods of inactivity—also means that standing corrosion risks, particularly in the brake system and undercarriage, may be higher than in a low-mileage vehicle. The suspension and exhaust systems, in particular, should be monitored for signs of wear or fluid leakage, as prolonged stationary periods without movement can exacerbate rust and fluid degradation. Given the recent MOT advisory on the offside front tyre and the historical failure of the near-side front tyre, the buyer should conduct a thorough inspection of the tyres, focusing on the following: verify that the offside front tyre has been addressed to prevent directional instability, which could lead to further lateral wear or hydroplaning risks; check the near-side front tyre for any signs of recent damage or repair, ensuring no further cuts or sidewall compromise exists; and inspect all tyres for uniform tread depth, sidewall cracks, and signs of uneven wear that may indicate misalignment or suspension issues. On a test drive, listen for unusual noises such as clunking from the front suspension, which could signal worn suspension bushes or coil springs, and monitor for brake pulsation or shuddering, which may indicate warped discs or binding calipers. Additionally, inspect the front tyre alignment and ensure the steering is straight without excessive play, as misalignment can accelerate tyre wear. Beyond the tyres, the buyer should also examine the vehicle’s brake system for signs of corrosion or binding, particularly on the near-side front components where the previous failure occurred. Standing for extended periods can cause brake discs to corrode or seize, leading to uneven braking performance or even failure under load. Check the brake fluid level and condition, as long-term stagnation can lead to moisture contamination and hydraulic system failure. Inspect the exhaust system for leaks or structural damage, especially around the catalytic converter and mufflers, as these can degrade over time and affect emissions performance. Finally, given the vehicle’s age and usage, consider a comprehensive service history check to confirm that fluid servicing—such as brake fluid, coolant, and transmission fluid—has been performed according to manufacturer recommendations, as fluid degradation over time can compromise system reliability. If possible, verify that the service book has been updated, particularly for items like suspension component replacement and tyre rotation records, to ensure the vehicle remains in optimal condition.