2015 Audi A4 2.0L Diesel · WO64 DPZ

Persistent front suspension wear, unaddressed dust cover degradation, and emerging structural underbody rust define the mechanical profile of this Audi A4. The vehicle successfully passed its latest MOT on 8 December 2025, but the record reveals escalating chassis advisories, including a corroded rear subframe and worn inner bushes on both front suspension arms. Furthermore, a minor defect for a severely deteriorated nearside front suspension arm ball joint dust cover has gone unaddressed across three consecutive annual inspections since December 2023. This pattern of deferred maintenance on non-expiring defects aligns with the vehicle's history, which recorded a test failure in December 2024 due to an active engine malfunction indicator lamp and a severely leaking nearside rear shock absorber. With 197,476 miles recorded over approximately eleven years, the vehicle has covered roughly 18,000 miles per year, representing a significantly high usage profile typical of heavy motorway driving. While long-distance cruising generally reduces wear on city-stressed components like clutches and starter motors, high total mileage causes cumulative stress across the entire vehicle architecture. At this advanced distance, major mechanical systems—including the suspension assemblies, wheel bearings, turbocharger, and exhaust scrubbers—have experienced substantial operational cycles, meaning running gear degradation is an ongoing consideration. A prospective buyer should prioritize a detailed physical inspection of the vehicle's underside, particularly the rear subframe and front suspension linkages. The subframe corrosion noted in the latest test must be assessed on a hoist to confirm structural integrity and to determine whether rust-treatment is feasible before deep pitting compromises the metal. The front suspension upper and lower control arms require thorough checking; dried-out ball joints operating through torn dust covers suffer rapid ingress of dirt and water. On a test drive, monitor the front end over road imperfections for metallic knocking, suspension clunking, or loose steering response indicative of worn bushes. Attention must also be paid to the engine management system and remaining running gear. Given the December 2024 failure for an engine MIL malfunction, conduct a full diagnostic scan using an OBD-II reader to check for stored or pending fault codes, ensuring underlying engine or emissions faults were properly repaired rather than temporarily reset. Check that the vehicle tracks straight without pulling, test for smooth damping over bumps to verify the integrity of the replaced rear shock absorber, and inspect the condition of all four tyres and brake friction materials, as historical records show a tendency to run consumables down to their minimum legal limits before replacement.