2020 Audi Q3 S Line 35 TDI S-A 2.0L Diesel · VN20 CTZ

The most recent DVSA examination on 30 January 2026 resulted in a pass, although a single advisory was issued regarding a child lock warning displayed on the dashboard. No structural, braking, or suspension defects were recorded at this test, which suggests the vehicle is fundamentally roadworthy at present. However, the advisory is noteworthy as a potential electrical or switch-related concern within the door lock mechanism, and it warrants confirmation that the warning is not indicative of a deeper body control module or wiring fault. Reviewing the broader trajectory, the vehicle passed cleanly in February 2025 with no advisories, but an earlier test on the same date recorded a failure on both rear tyres due to cuts exposing the ply or cords. This pattern does not point to systemic mechanical deterioration; rather, it suggests isolated component events rather than a worsening maintenance trend. The 2023 advisory concerning slight play in the nearside front lower suspension arm ball joint is now three years old and should be regarded as requiring verification during any pre-purchase inspection, as ball joint wear typically progresses with mileage and can lead to MoT failure if left unchecked. The recorded mileage of 52,987 miles over six years equates to an annual average of approximately 8,831 miles, which sits comfortably within the typical range for a diesel-powered family SUV of this vintage. This moderate usage pattern implies that the vehicle has likely been driven consistently rather than left standing for prolonged periods, which is generally beneficial for the preservation of seals, brake components, and the dual-clutch or automatic transmission. There are no glaring inconsistencies or suspicious gaps in the recorded odometer history, lending confidence that the mileage is genuine and that wear rates on consumables such as tyres, brake pads, and clutches should broadly align with expectations. Given the diesel powertrain and the mileage accrued, attention should still be directed towards the timing belt or chain service interval, the diesel particulate filter regeneration history, and the condition of the turbocharger and associated vacuum lines, all of which are age-sensitive irrespective of mileage. For a prospective buyer, the nearside front lower suspension arm ball joint advisory from 2023 merits close physical scrutiny. On a test drive, listen for any clonking or knocking from the front suspension, particularly when traversing speed bumps, potholes, or uneven road surfaces. Inspect the nearside front wheel arch and undertray for any signs of fresh grease around the ball joint dust cover, as perished or split boots will accelerate wear through contamination. Additionally, check for uneven front tyre wear, which can indicate advanced ball joint play or worn suspension bushes, and verify that the steering returns to centre smoothly without vibration through the wheel. The two rear tyre failures from early 2025 also serve as a reminder to inspect the current set of tyres carefully for sidewall cracking or perishing, particularly given that the vehicle is now six years old and rubber compounds degrade with age regardless of tread depth. Confirm that all four tyres are of matching size, load rating, and speed index, and check the manufacturing date stamps on the sidewalls. Beyond the recorded advisories, a vehicle of this age and profile warrants a broader programme of physical checks. Examine the brake discs for any pronounced lipping or surface corrosion, particularly given that the rear drums or discs may have suffered from light use, and verify that the handbrake holds effectively on an incline as binding calipers are a known concern on Audis of this era. Inspect the exhaust system from the turbo back for any blue staining indicative of oil consumption, and listen for any irregular diesel rattle on cold start which could suggest injector or timing chain concerns. Check the engine oil and coolant levels and condition on the dipstick and expansion tank, and request evidence of recent servicing including the diesel fuel filter, air filter, and gearbox fluid if applicable. Verify the 12V battery health, as modern Audis with high electrical loads are sensitive to weak battery state, often manifesting as random warning lights or infotainment glitches. Finally, confirm the operation of all child lock mechanisms referenced in the recent advisory, and ensure all dashboard warning lamps extinguish promptly after ignition.