2017 Audi A4 Ultra S Line TDI 2.0L Diesel · BN17 VTU

The vehicle presents a stable and recently improving maintenance trend, culminating in a clean pass on 5 March 2026 at 64,403 miles with zero defects recorded. That is a significant turnaround from the February 2024 failure, where the tester flagged both front outer CV boots split and a fractured nearside rear coil spring alongside a seriously corroded offside rear spring. The fact that these suspension and drivetrain defects were rectified ahead of the subsequent 2024 pass suggests a conscientious intervention by the previous keeper. Brake wear has been a recurring minor theme, with advisories for thin front pads in February 2025 and thin rear pads in February 2024, yet these appear to have been managed proactively rather than neglected. Mileage accumulation is entirely typical for a 2017 diesel saloon, averaging roughly 7,156 miles per year. The annual increments between tests show a consistent pattern: approximately 6,200 miles between February 2023 and February 2024, then around 8,050 miles between February 2024 and February 2025, and finally about 7,530 miles between February 2025 and March 2026. There are no suspicious gaps or sudden drops that would indicate long-term standing or clocking concerns. The MOT record itself is complete and unbroken from 2023 onward, providing a reliable serviceability timeline. A buyer inspecting this A4 in person should focus on the structural and suspension components that previously failed. Check the rear coil springs carefully for any signs of corrosion at the lower mounting points, particularly the offside spring that was seriously weakened in 2024. Examine both front outer CV boots for splits, grease displacement, or play in the joints, as both were replaced after the February 2024 failure and should now be monitored for early deterioration. The rear brake discs and pads deserve close inspection given the repeated advisories, and a test drive should confirm the handbrake holds firmly on a gradient without binding. Finally, inspect the subframe and inner wheel arches for corrosion, as salt exposure combined with the previous spring corrosion raises the likelihood of related underbody deterioration on a vehicle of this age.