2017 Audi A3 1.6L Diesel · OW66 SBO

Recurring tyre degradation and progressive brake wear characterise the mechanical profile of this Audi A3, with the most recent test on 07 July 2026 involving a dangerous failure due to a structural bulge in the nearside rear tyre. While the vehicle passed its latest inspection after addressing this failure, the record shows a consistent pattern of advisories regarding perishing and cracking rubber across multiple years, alongside a developing trend of wear on the rear braking components. The presence of advisories for pitted and scored offside rear brake discs, combined with thinning outer brake pads, indicates that the braking system is entering a phase of required maintenance. The vehicle has covered 44,681 miles over approximately nine years, representing an average annual accumulation of roughly 4,965 miles. This low annual mileage is significantly below the UK average and suggests infrequent road use. Mechanically, such a pattern can contribute to the observed tyre issues, as tyres that remain stationary for extended periods are more susceptible to sidewall cracking and perishing. This usage profile also explains the recorded corrosion and pitting on the brake discs, which often occurs when a vehicle is not driven frequently enough to regularly clear surface oxidation through friction. Prospective buyers should pay close attention to the condition of the tyres and the braking system during a test drive. Given the history of structural tyre failures and perishing, a thorough visual inspection of all sidewalls for bulges, cracks, or uneven wear is essential. Regarding the brakes, the recent advisories for worn and pitted offside rear discs, as well as thinning pads, necessitate a check for any pedal judder or pulsation under braking, which could indicate disc thickness issues or warping. Additionally, the advisory to monitor front brake pads in the coming 5,000 to 6,000 miles suggests that the front braking components are also approaching the end of their service life. The tyre pressure monitoring system (TPMS) was previously flagged as a failure in July 2024, and a recent advisory noted a TPMS light triggered by a nail in the nearside rear tyre. It is important to verify that the TPMS is fully operational and that no warning lights remain illuminated on the dashboard. Any uneven steering pull or vibration through the steering wheel should be investigated, as the history of edge wear on front tyres and structural tyre defects could indicate underlying alignment issues or suspension component wear that has not been explicitly detailed in the MOT records.