2020 Audi S4 Black Edition TDI Quattro A 3.0L Diesel · PL69 XGJ

The vehicle is currently roadworthy following a successful MOT in January 2026, but the maintenance trend shows a recent mechanical failure regarding the braking system. The car failed the test on 21 January 2026 at 122,408 miles due to sub-standard parking brake efficiency and an inoperative electronic parking brake control. The fact that the vehicle passed the following day suggests the fault was rectified immediately, yet it indicates a significant component failure in the actuator or linkage under high mileage. The mileage profile is notably high for a six-year-old vehicle, averaging over 20,000 miles per year. Between the January 2023 test at 53,827 miles and the November 2024 test at 94,387 miles, the car covered approximately 40,000 miles in just 22 months. This rapid accumulation suggests heavy motorway use, which typically places accelerated wear on the Quattro drivetrain components, suspension bushings, and turbocharger assembly compared to lower-mileage examples of the same age. A buyer must conduct a thorough physical inspection of the electronic parking brake system to ensure the repair performed in January 2026 remains robust. Given the high mileage, specific attention should be paid to signs of wear in the front control arms and shock absorbers, which often degrade under these conditions. While the 2023 advisory for a nail in the tyre was a minor consumable issue, the overall history reflects a vehicle that is reaching a stage where major service intervals for the engine and timing components are critical to reliability.