AUDI S42004 · 4.2L Petrol

The 2004 Audi S4 presents a stable roadworthiness profile based on its most recent MOT records. The 2025-10-17 test at 90,347 miles confirmed a pass with no defects, following a failed test on 2025-10-09 at 90,345 miles, which also recorded no defects. This inconsistency suggests either a procedural error or an unrecorded issue, but the absence of reported faults in subsequent tests implies the vehicle has been maintained to acceptable standards. No recurring mechanical or structural concerns are evident in the data, though the back-to-back tests with identical mileage raise questions about the accuracy of the failed result. The vehicle’s mileage of 90,347 miles over 22 years equates to an average of 4,107 miles annually, significantly below the UK’s typical usage for its age. This low mileage may indicate infrequent use or prolonged periods of inactivity, which can accelerate wear on components like rubber seals, suspension bushes, and battery health. The MOT history shows consistent testing intervals, with the longest gap between 2022-02-22 (89,880 miles) and 2023-07-28 (89,948 miles), a 15-month span. While the records are clean, the sparse data from 2022 to 2023 warrants scrutiny, as extended inactivity could mask underlying issues. A buyer should prioritise a physical inspection of the chassis for corrosion, particularly in areas prone to rust such as sills and underbody panels, given the vehicle’s age. The suspension system, including coil springs and dampers, should be checked for wear, as low mileage can lead to stiffness or uneven degradation. Brake components, including discs and calipers, require scrutiny to confirm no binding or uneven wear, which might have been overlooked in the MOT process. Additionally, the electrical system and fluid levels should be verified, as prolonged inactivity can affect these elements. The absence of recorded defects is reassuring, but the vehicle’s maintenance history does not provide definitive evidence of proactive servicing.