2021 Audi Q3 S Line 35 TDI S-A 2.0L Diesel · WH21 FXL

The Audi Q3 S Line 35 TDI S-A presents a clean and stable roadworthiness record over the past two MOT cycles, with both tests—July 2024 at 18,773 miles and July 2025 at 27,670 miles—passing without any defects or advisories. This consistency suggests the vehicle has been well-maintained within the scope of its MOT requirements, with no signs of recurring mechanical or structural issues. The absence of advisories or failures in either test indicates that routine components such as brakes, suspension, emissions, and lighting systems have been functioning within DVSA thresholds. However, the short interval between tests—just under a year—means the next MOT is now overdue by nearly 12 months, which could raise questions about whether the vehicle has been driven regularly or if the owner has deferred testing. The mileage accumulation of 5,534 miles per year is notably low for a five-year-old vehicle, particularly one with diesel efficiency that might otherwise cover higher annual distances. The gap between the 2024 and 2025 tests shows a steady but modest increase of 8,897 miles in 12 months, which could imply either light personal use, storage periods, or a combination of both. Without earlier MOT records, it’s impossible to confirm whether this pattern is recent or long-standing, but the lack of wear-related advisories in the past two tests suggests that any standing periods did not introduce corrosion, fluid degradation, or component deterioration. Buyers should verify if the vehicle has been driven consistently or left unused, as prolonged inactivity can still affect battery health, tyre condition, and fluid integrity even if no MOT faults appear. Given the clean MOT history, a prospective buyer should focus their inspection on components that are not routinely checked during MOTs but are critical for long-term reliability. Particular attention should be given to the suspension—specifically the condition of coil springs, anti-roll bars, and bushings—since low mileage can mask early wear that might only become apparent under load or after extended use. The braking system, including caliper condition, pad thickness, and disc surface, should be checked for uneven wear or corrosion, even though the MOT has not flagged any issues. Additionally, the exhaust system’s integrity, especially around mountings and joints, should be verified, as diesel vehicles are prone to heat-related stress. Finally, while the MOT records show no emissions-related failures, a pre-purchase inspection should confirm the diesel particulate filter (DPF) and exhaust gas recirculation (EGR) systems are functioning correctly, as these can degrade without obvious symptoms in low-mileage vehicles.