2015 Audi A5 3.0L Petrol · WJ04 ANN

The most recent MOT, dated 11 August 2026, was passed but carried an advisory concerning light oil misting from the off‑side rear shock absorber. Apart from a single major failure in August 2025 for excessive carbon‑monoxide emissions, the vehicle has recorded clean passes in every other test since 2020, indicating a generally stable maintenance record with only isolated issues emerging in recent years. At 73 610 miles the 2015 Audi A5 averages roughly 6 700 miles per annum, which sits comfortably within the typical usage envelope for a car of its age. There are no pronounced mileage spikes or prolonged gaps in the MOT chronology that would suggest periods of intensive short‑term use or extended storage, so the wear on drivetrain and suspension components is likely to be commensurate with its calendar age rather than excessive mileage wear. The oil‑mist advisory on the rear shock absorber points to a minor seal leak that, if left unchecked, can lead to reduced damping performance, rear‑wheel vibration and premature bush wear. During a test drive the buyer should listen for any soft thudding or clunking when traversing bumps, and feel for uneven rear‑end stability under braking or cornering. A visual inspection should verify the condition of the shock’s mounting hardware, surrounding bushings and any signs of oil on the rear wheel arch. The 2025 exhaust CO failure suggests the catalytic converter, oxygen sensor or fuel‑trim system may be out of tolerance; a lingering exhaust note, reduced fuel efficiency or a faint sulphur smell could be symptomatic. It is advisable to have the emissions system scanned for fault codes and, if necessary, the catalyst inspected for blockage or degradation, as rectifying this will be essential for future MOT compliance and environmental performance. Given the vehicle’s eleven‑year age, the buyer should also examine age‑related items irrespective of mileage. Tyre sidewalls should be checked for cracking, dry rot or uneven wear that may indicate alignment or suspension issues. The 12‑volt battery, especially if the car has spent time idle, should be load‑tested and its terminals inspected for corrosion. Brake discs and pads ought to be measured for thickness and checked for surface rust or uneven scoring, while caliper operation should be verified for binding. Finally, a review of the service book for timely oil, coolant and transmission fluid changes, as well as a visual check for any rust on the chassis, wheel arches and under‑body, will help confirm that the car has been maintained in line with manufacturer recommendations.