2013 Audi Q3 2.0L Diesel · WM13 TLZ

The vehicle most recently presented for testing on 20 February 2026 and, although it initially failed on three Major defects relating to non-functional windscreen washers and perished anti-roll bar ball joint dust covers on both front sides, it was issued a Pass later the same day once those items had been addressed. The test also carried forward four advisories which are far more significant than the failure items in terms of long-term mechanical outlook. These noted corrosion forming on the rear sub-frame, corrosion on both rear lower suspension arms, rear brake pads worn low, and slight damage to the centre seat belt buckle casings. Reviewing the trajectory of tests, the car returned clean passes through 2020, 2021, 2022, and 2024, with the only earlier advisory being a nearside rear tyre worn on its edge in 2023 and light oil misting on both rear shock absorbers in 2025. The 2026 advisories therefore represent a noticeable uptick in structural and consumable wear and suggest the vehicle is entering a phase where corrosion and suspension component renewal should be expected and budgeted for, rather than a sudden deterioration from a previously pristine state. With 160,693 miles recorded against a 2013 registration, this Q3 has covered approximately 12,361 miles per year over its life, which is notably above average for a vehicle of this age and clearly indicates sustained motorway or long-distance use rather than short urban trips. There are no significant standing periods evident in the mileage progression between MOTs, with annual mileages consistently running into five figures. High sustained mileage of this nature accelerates wear on engine internal components, turbocharger bearings, dual-clutch or automatic transmission mechatronics, clutch linings where applicable, and driveshaft constant velocity joints, while also demanding more frequent renewal of timing chains, water pumps, and diesel or petrol particulate filters depending on the variant fitted. Prospective buyers should therefore pay particular attention to any evidence of recent major mechanical intervention, and verify the engine oil and filter change interval has been strictly maintained, ideally with supporting service history. In light of the advisories raised at the 2026 test, a thorough physical inspection should begin with the rear undercarriage, where the noted corrosion on the sub-frame and both lower suspension arms warrants close examination using a torch and, ideally, a ramp or lift. Corrosion in these areas can progress to compromise structural integrity and affect rear axle geometry, leading to uneven or accelerated rear tyre wear, vague or wandering handling, and clonking noises over uneven surfaces. The rear brake pads being worn low implies the discs may also be approaching their minimum thickness or suffering from lipping, so a check of pad and disc condition front and rear is essential, along with inspection of the calipers for seized or binding sliders which are common on high-mileage vehicles left standing. The perished anti-roll bar ball joint dust covers that caused the earlier Major failures are worth re-examining to ensure replacements have been correctly fitted, and the centre rear seat belt buckle should be confirmed as fully latching and retracting correctly despite its cosmetic damage. A test drive should focus on listening for any rear suspension knocks or squeaks on undulating roads, feeling for pulling or instability under braking, and confirming the anti-roll bar function by cornering briskly on a roundabout to detect any looseness or clonking from the front end. Beyond the recorded defects, the age and high accumulated mileage of this thirteen year old Q3 demand a number of time-based checks irrespective of the MOT record. Tyres should be examined not only for tread depth but for sidewall cracking and perishing caused by age, as rubber degrades through UV exposure and standing even when tread remains legal, and a 2013 manufactured tyre may well be due for replacement regardless of wear. The 12V battery health should be tested under load, as original or aged batteries in high-mileage vehicles with frequent short cycles can fail without warning. Brake fluid, coolant, and if applicable automatic transmission fluid, all degrade by calendar age rather than mileage and should be confirmed as recently renewed, ideally with documented evidence. Diesel variants warrant verification of the timing belt or chain service interval, while petrol units should be checked for carbon build-up on intake valves, and all variants should be inspected for oil leaks from the cam chain tensioner, turbo seals, and sump gasket. Finally, given the rear sub-frame corrosion flagged at test, a thorough examination of all structural jacking points, sill seams, and arch lips for any bubbling or paint lift is strongly advised before purchase.