2015 Audi Q3 2.0L Diesel · HG15 CZS

A fractured off‑side rear coil spring recorded as a major failure at the March 2026 MOT dominates the recent history, signalling a critical suspension weakness that must be rectified before the car can be considered road‑worthy. The same test also showed a pass after the failure was recorded, indicating the defect was addressed, but the recurrence of multiple advisories – tyre edge wear, front suspension arm bush wear, thin front brake pads and pitted rear discs – across 2024 and 2021 demonstrates a pattern of wear on key safety components. The earlier 2024 failure for an inoperative engine MIL further underlines the need for a comprehensive systems check. At 101,942 mi the vehicle averages roughly 9,300 mi per year, a mileage rate that sits squarely within normal usage for a 2015 model. MOT examinations have been carried out annually with no significant gaps, suggesting the odometer reading is reliable and that the car has not endured prolonged periods of inactivity. The steady accumulation of mileage aligns with the progressive wear items noted in the records, particularly the tyre and brake components that typically deteriorate with higher mileages. Prospective buyers should verify that the rear coil spring has been replaced with an OEM‑spec part and that the associated rear suspension bushings and mounting points are free of cracks or excessive play; on a test drive listen for clunking over bumps and feel for any lateral movement in the rear axle. Front tyre wear on the inner edge, noted in 2024, warrants a visual inspection for mis‑alignment or worn suspension arm pins, and the advisory on front suspension arm bush wear should be checked for looseness or uneven tyre wear during a short drive. The thin front brake pads and pitted rear discs flagged in 2024 should be measured for remaining thickness, and the brakes tested for pedal feel, judder or noise that could indicate further disc degradation. Finally, confirm that the engine management indicator lamp operates correctly, as the 2024 failure highlighted a malfunctioning MIL; a diagnostic scan should be run to ensure no stored fault codes remain. Verify the condition of the off‑side rear tyre, which has been reported as slightly damaged, and replace it if any cuts or sidewall cracking are evident. A thorough inspection by a qualified mechanic, focusing on the rear suspension assembly, brake wear, tyre health and engine warning systems, will clarify the remedial work required and help gauge the overall cost of bringing the vehicle to a reliable road‑worthy state.