2022 Audi S4 TDI Mhev Quattro Auto 3.0L Diesel · L15 GAH

A 2022 Audi S4 TDI MHEV Quattro with only a single MOT pass to its name and zero recorded defects represents an unusually clean but also notably sparse DVSA history for a four-year-old vehicle. The test conducted on 4 December 2025 recorded no advisories, no failures, and no minor defects, meaning no component wear was significant enough at the time to be flagged under MOT inspection criteria. While this is a positive indicator that no safety-critical items were deteriorating at the point of test, the absence of any advisory history means there is also no longitudinal DVSA trend to confirm whether wear items such as brake pads, discs, tyres, or suspension components are being addressed proactively or simply have not yet reached reportable thresholds. The overall picture is one of clean roadworthiness, but it is a single data point on a vehicle that, by age, should have generated at least one earlier test entry. The recorded mileage of 12,811 miles against a four-year registration equates to an average annual accumulation of roughly 3,203 miles, which is substantially below typical UK usage for a premium executive saloon. There is no second MOT entry against this registration period, which suggests the vehicle may have been exempt from testing in earlier years due to its new registration status, and there are no recorded mileage gaps or unusual jumps to indicate inconsistent recording. Low annual mileage of this nature typically correlates with limited wear on high-friction components such as clutch material, brake discs and pads, and drivetrain internals, but it can also place unusual demands on systems that suffer from underuse. Diesel particulate filter performance, AdBlue system function, turbocharger oil feed priming, and the 48V mild-hybrid battery and associated electrical conditioning can all be affected by infrequent running, particularly if the vehicle is predominantly used for short journeys where the engine does not reach sustained operating temperature. For a prospective buyer, the priority on a physical inspection should be to verify the condition of those components most likely to suffer from low-mileage underuse rather than from wear. On the test drive, listen for any roughness, misfire, or hesitation from the 3.0-litre TDI V6, particularly under load, and confirm that the engine reaches full operating temperature with the coolant gauge stabilising rather than remaining low after extended running. Check the DPF for warning lights or restricted regeneration cycles by reviewing the trip computer and ensuring no associated dashboard messages are stored. Inspect the condition of the brake discs carefully for any surface corrosion pitting around the outer edges, which can occur when the vehicle sits idle for extended periods, and verify that the brakes bite cleanly without judder or grinding on the first application. Examine the tyres for flat spots, sidewall cracking, or uneven pressure loss, as low-mileage tyres can suffer age-related rubber degradation even when tread depth remains adequate, and confirm that the manufacturing date stamps are not excessively old. Suspension refinement is a defining characteristic of the S4, so any knocking, creaking, or vagueness over undulating road surfaces or speed bumps would warrant close attention to the front and rear suspension arms, anti-roll bar bushes, and adaptive damper operation if fitted. Steering should remain precise and free from any vibration or pull, particularly under braking, which would indicate warped discs or a binding caliper. Inspect the underside of the vehicle, including the front subframe, rear differential housing, and brake pipe runs, for any signs of surface corrosion or oil seepage, as even a clean MOT record does not guarantee the absence of slow-developing issues on a vehicle that has spent much of its life on wet roads. Finally, verify that the MHEV system is functioning correctly with no warning messages stored, and confirm full service history documentation, as manufacturer-specified maintenance intervals remain essential regardless of the low mileage accumulated.