2017 Audi A4 Sport TDI Quattro S-A 2.0L Heavy oil · CV17 VDC

The most recent MOT test on 2026-04-20 resulted in a clean pass, marking a positive turnaround from the vehicle’s previous failures and a return to full compliance. However, the overall maintenance history reveals a pattern of recurring issues that, while not currently failing the vehicle outright, indicate a need for heightened attention. The most critical failures from 2022 to 2024—particularly the major defects involving corroded and fractured rear coil spring mounts—highlight persistent structural wear, suggesting underlying fatigue in the suspension system. These incidents were not isolated; advisories from earlier MOTs, such as deteriorating suspension arm ball joints and bent bushes, further underscore the susceptibility of the offside rear suspension to premature failure. While the latest test has resolved these immediate concerns, the cumulative evidence points to a vehicle that has experienced significant suspension stress over its lifespan, warranting proactive maintenance rather than reactive repairs. The vehicle’s recorded mileage of 86,260 miles at the time of assessment represents a moderate annual usage rate of approximately 9,584 miles, which is typical for a nine-year-old car with typical driving habits. However, the MOT history does not provide explicit evidence of rapid mileage accumulation, and the gaps between tests (e.g., over a year between 2023-02-09 and 2024-03-14) suggest periods of either low or no use, which can exacerbate wear from standing or idling. The suspension failures, particularly the coil spring mounts, are more likely to have been influenced by prolonged static loading rather than high-mileage driving alone. This implies that while the mileage may not be exceptionally high, the vehicle’s exposure to static stress—such as being left parked in damp conditions—has contributed to accelerated corrosion and mechanical degradation in critical suspension components. Given the recurring advisories and past failures, the prospective buyer should prioritise a thorough inspection of the suspension system, focusing on the rear coil springs and their mounting points. Visually check for any signs of further corrosion, spring displacement, or deformation, and listen for unusual noises during a test drive, particularly when negotiating bumps or sharp turns—clunks or rattles from the rear suspension could indicate failing bushes or mounts. The brake discs also show signs of wear and corrosion, with visible lips and pitting, which may suggest uneven braking or potential heat-related damage. Inspect the brake pads for thickness and condition, and check for any signs of pulsation or binding, which could indicate warped discs or misaligned calipers. If the buyer encounters a brake shudder during braking, this may warrant further investigation, as it could point to internal disc issues or warping. Additionally, the number plates and registration details, while not directly affecting roadworthiness, should be addressed for cosmetic and legal reasons, as the delamination and cracking noted in the MOT history could compromise visibility or require replacement. For practical checks beyond the MOT history, the buyer should examine the vehicle’s tyre condition, paying particular attention to sidewall perishing or cracking, which can weaken the tyre structure and compromise safety at higher speeds. Given the vehicle’s age, the tyres may be approaching their service life, and a tread depth check should be performed to ensure compliance with legal minimum standards. The 12-volt battery should be tested for charge capacity and terminal corrosion, as standing vehicles can lead to battery drain and corrosion over time. Fluid levels, particularly the engine oil, coolant, and brake fluid, should be checked for contamination or degradation, with a recommendation to replace fluids that have been in service for over five years, as they can become sludge-prone or lose effectiveness. Finally, a review of the service history—particularly for suspension and brake servicing—would be invaluable, as the absence of recorded service stamps may indicate missed maintenance opportunities. If the buyer cannot access a service book, a professional inspection of the suspension, brakes, and fluid condition is strongly advised to mitigate potential future failures.