2012 Audi A6 3.0L Diesel · PN12 ABV

The most recent MOT recorded on 12 April 2023 resulted in a failure, principally because the off‑side rear passenger door could not be opened from the exterior, and an advisory was issued for a non‑excessive oil leak. The preceding test in March 2022 was a clean pass, while the earlier April 2023 pass carried only the same oil‑leak advisory. This pattern shows a slight deterioration in condition: the door fault has emerged since the last clean pass, and the oil leak persists, indicating that any underlying seal or gasket issue has not been remedied. At 111,307 miles the car has logged roughly 7,950 miles per year over its fourteen‑year life, which sits comfortably within the average usage envelope for a 2012 executive sedan. There are no obvious spikes or prolonged gaps in the mileage record, suggesting the vehicle has not been subjected to extreme short‑term abuse or long periods of inactivity that could accelerate component wear. Nonetheless, the cumulative distance means that wear items such as suspension bushings, engine mounts, and drivetrain bearings will be approaching the latter stages of their service lives. The oil leak noted on both MOTs should be traced to its origin before committing to purchase. Inspect the valve‑cover gasket, oil pan gasket and any surrounding seals for signs of fresh oil on the underside of the engine or on the ground beneath the car. While the leak is classified as non‑excessive, any persistent seepage can lead to oil starvation of critical components, especially if the level drops between services. During a test drive listen for any unusual engine noises that could indicate low oil pressure, and verify that the oil level on the dipstick is within the correct range after a short warm‑up. The door fault points to a likely failure of the latch mechanism, external release cable or striker alignment; check that the door can be opened and closed smoothly from both inside and out, and that the lock engages securely. A door that will not open from the outside may compromise egress in an emergency and could be symptomatic of rusted or warped bodywork around the hinge area. Given the vehicle’s age, a thorough visual and tactile inspection of age‑related items is essential. Examine all four tyres for sidewall cracking, perishing or uneven tread wear that could reveal mis‑alignment or worn suspension components; tread depth should be no less than 1.6 mm across the tyre. Check the condition of the suspension bushings, ball joints and coil springs for any signs of corrosion, play or squeaks when the wheels are rocked. Inspect the brake discs for surface rust, scoring or excessive thickness loss, and ensure the calipers move freely without binding. Verify the health of the 12‑volt battery, especially its cranking voltage and any signs of electrolyte leakage, as a fourteen‑year‑old battery may be nearing the end of its service life. Finally, confirm that the service book shows timely oil, coolant and brake‑fluid changes, as many fluids degrade with time even if the car is not driven heavily. Addressing these points will give a clear picture of the car’s mechanical soundness and any imminent maintenance that may be required.