2015 Audi Q3 2.0L Diesel · KA03 DNA

The most recent DVSA examination on 20 October 2025 resulted in a Pass with no advisories or defects recorded, which is a positive immediate indicator. However, this single pass follows a failure on the very same date concerning a severely deteriorated near side front outer constant velocity joint boot and an excessively worn near side front anti-roll bar linkage ball joint, both categorised as major or minor defects. The 2024 cycle is similarly instructive, with a clean pass on 12 November 2024 following an earlier failure on 24 September 2024 that flagged serious structural corrosion on both rear suspension arms alongside worn front suspension arm pins or bushes on both sides. Taken together, the pattern suggests the vehicle is being actively maintained, with significant suspension and drivetrain components having been addressed recently, yet the recurrence of chassis-related wear within a twelve-month window points to a vehicle whose suspension and underbody components are subject to progressive fatigue at this mileage. A prospective buyer should treat the trend as broadly stable but should not assume the corrective work has been completed to a lasting or original-equipment standard without documentary verification. Recorded mileage of 115,558 miles over approximately eleven years equates to an annual average of around 10,505 miles, which is broadly typical for a vehicle of this age and broadly consistent with mixed private and short-journey use. There are no extended standing periods evident in the mileage progression between tests, with annual MOTs being conducted consistently through 2024 and 2025, suggesting the vehicle has been in regular operation rather than left idle for long spells. The mileage is not so high as to imply extreme drivetrain fatigue, but it is sufficient that the engine, transmission, turbocharger, clutch, dual-mass flywheel, and major electrical components have all accumulated substantial working hours, meaning calendar-based degradation of rubber, plastics, and seals should still be expected even if mechanical wear is moderate. In relation to the specific defects recorded, the recent anti-roll bar linkage replacement should be inspected to confirm a quality component has been fitted and that the adjacent anti-roll bar bushings and drop links have been assessed, as anti-roll bar wear typically presents on test drive as a clonking or rattling noise over speed humps, cats-eyes, or during steady-state cornering. The deteriorated CV boot, if not replaced, will lead to loss of grease, ingress of dirt and moisture, and ultimately failure of the drive shaft, symptoms of which include a clicking noise on full-lock low-speed manoeuvres and eventual vibration under load. The 2024 rear suspension arm corrosion failures warrant particular attention because corrosion of this severity on a multi-link rear axle suggests the surrounding components, subframe mounting points, and brake line brackets should be examined for similar degradation, often manifesting as uneven rear tyre wear, a wandering sensation at speed, or knocking from the rear axle over uneven surfaces. The front suspension arm bushes that were flagged should likewise be checked for replacement, with attention to whether polyurethane or OEM-type rubber bushes have been used, as aftermarket alternatives can alter ride quality and longevity. Beyond the recorded defects, a vehicle of this age and mileage warrants thorough physical inspection regardless of a clean current pass. Tyres should be examined for sidewall perishing and cracking from age rather than solely for tread depth, as an eleven-year-old sidewall can fail suddenly even with legal tread remaining. Brake discs should be inspected for corrosion lipping and the calipers checked for binding, particularly given likely short-journey use. The 12V battery, cooling system, brake fluid, and gearbox or Haldex differential fluid if quattro equipped all degrade with calendar age and should be serviced in line with manufacturer schedules rather than mileage alone. A compression or leak-down test on the engine, inspection of the turbocharger for blue smoke under load, and verification of recent cambelt or timing chain service records are strongly advised. Finally, confirmation of a complete service book, ideally with an Audi main agent or recognised specialist stamp history, will provide the strongest reassurance that the corrective work identified by recent MOT failures has been carried out to an appropriate standard.