2010 Audi A3 1.6L Diesel · GJ10 VRR

The 2010 Audi A3 passed its most recent MOT on 10 October 2025 at 155,795 miles, yet the record reveals a worsening mechanical trend rather than a stable one. In the June 2025 failure, the tester flagged rear suspension arms likely to fail, a fractured offside rear coil spring, an ABS warning lamp, excessive offside front wheel bearing play, and corrosion significantly reducing the nearside rear outer sill. By the October 2025 retest the car passed, but the same structural corrosion items reappeared as advisories on the nearside front outer sill, offside rear outer sill, rear sub-frame, and both front suspension arms. The ABS fault and fractured coil spring were rectified between June and October, yet the underlying corrosion pattern persists and the brake discs remain worn and pitted on both axles. The mileage progression tells a clear story. Between April 2023 at 130,370 miles and April 2024 at 138,929 miles, the car covered 8,559 miles in twelve months. From April 2024 to May 2025 at 155,728 miles, it added 16,799 miles in just thirteen months, a sharp acceleration to roughly 15,400 miles per year. The recorded mileage then barely moved between the May 2025 failure at 155,728 miles and the October 2025 pass at 155,795 miles, a gain of only 67 miles across five months, suggesting the car sat unused or was used very sparingly after the June failure while repairs were carried out. The overall annualised average of approximately 9,737 miles is typical for a sixteen-year-old vehicle, but the recent spike followed by near-static mileage raises questions about how the car was driven during that high-use period and whether components were stressed under heavier loads. A buyer inspecting this A3 in person should focus on the structural corrosion flagged repeatedly across the 2025 tests. The nearside front outer sill, offside rear outer sill, and rear sub-frame all carry corrosion advisories, and the June 2025 failure specifically identified the nearside rear outer sill as corroded to the point of significantly reduced rigidity. Probe these areas carefully, paying attention to the inner sill seams and jacking points where corrosion often worsens beneath surface-level scaling. The front suspension arms were corroded on both the May and October 2025 tests, so check for advanced pitting on the rear lower arm bushes and ball joint housings. The June 2025 failure noted both rear suspension arms were likely to fail, and while these appear to have been replaced for the October pass, verify the condition of the replacement arms and their mounting points for fresh corrosion or distortion. The braking system also demands close attention. The ABS warning lamp was illuminated in both May and June 2025, indicating an intermittent or recurring fault that may have been masked rather than fully resolved for the October pass. Test the ABS function on a low-grip surface and scan for stored fault codes. The front and rear brake discs remain worn and pitted, and the rear brakes were imbalanced in May 2025, so inspect disc thickness, lipping, and pad condition across all four corners. The offside front wheel bearing had excessive play in June 2025, and the October test carried no advisory on it, suggesting a replacement, but confirm there is no roughness or play at road speed. Finally, check both rear coil springs for fractures, as both were broken in May 2025 and the offside was broken again in June, indicating the car may have been driven hard over poor surfaces or overloaded.