2018 Audi A3 1.5L Petrol · WN18 AAX

The most recent MOT on 9 March 2026 was passed, but it carried four advisories – both rear brake discs were noted as worn, pitted or scored, and there were minor cuts on the near‑side front tyre and off‑side rear tyre. The preceding four tests from 2022 to 2025 were clean, indicating that the vehicle has been generally well maintained until the latest year when wear on the rear braking system and tyre surface began to surface. The emergence of these advisories suggests a modest decline in component condition rather than a systemic maintenance failure, and the car remains road‑worthy provided the highlighted items are addressed promptly. At eight years old the odometer reads 41,258 miles, equating to roughly 5,150 miles per annum – markedly below the average UK usage of around 10‑12 000 miles a year for a vehicle of this class. Such low annual mileage often points to periods of limited use or extended storage, which can be benign but also predisposes components to age‑related deterioration unrelated to distance travelled. The modest mileage reduces the likelihood of high‑wear failures on items such as the clutch, gearbox or engine bearings, yet it does not eliminate the need to verify that fluids have been refreshed on a calendar basis and that any parts susceptible to corrosion have been inspected after any prolonged idle periods. When inspecting the rear braking system, pay particular attention to the condition of the discs and pads. Look for any vibration or pulsation through the pedal under moderate braking, a high‑pitched squeal that changes with pad wear, or a noticeable increase in stopping distances, all of which could indicate that the pitting is progressing toward a weakening of the disc surface. Measuring the disc thickness with a micrometer or having a workshop confirm it exceeds the minimum specification will clarify whether replacement is imminent; typically a disc that is scored but not yet weakened can be safely used for another 5‑10 000 miles if the pads are still within limits, but budgeting for a set of rear discs and pads within the next service interval is prudent. The tyre cuts, while not yet reaching the ply, should be examined for any signs of edge cracking, bulging or loss of structural integrity; a simple visual check of tread depth on both the affected and surrounding tyres, combined with a tactile assessment of the sidewall for softness, will reveal whether the cuts are likely to develop into a puncture. If the cuts are deeper than they appear or the tread is below the legal 1.6 mm limit, replacement of the affected tyres – and possibly the whole set if the others are of comparable age – will be required. Given the vehicle’s age and low mileage, a thorough age‑related inspection is advisable. Verify the DOT code on each tyre to confirm they are not older than six years, as rubber perishes even on low‑use tyres. Check the 12‑volt battery for voltage under load and inspect the terminals for corrosion; a battery that has sat idle for long periods may need a replacement despite low mileage. Inspect the brake fluid for moisture content – a fluid change every two years is standard practice – and examine the coolant, power‑steering and gearbox oils for colour and level, as time can degrade these fluids regardless of distance. Look over the suspension bushes, rubber mounts and tyre sidewalls for cracking, and inspect the under‑carriage for any signs of rust, especially around the wheel arches and sills, which can develop when a car is stored for extended periods. A short test drive should include listening for any clunks or squeaks when negotiating bumps, feeling for any pull or uneven braking, and confirming that all lights, wipers and electronic aids operate correctly. Addressing these points will give a prospective buyer a clear picture of the car’s current roadworthiness and the maintenance tasks that lie ahead.