2015 Audi A4 2.0L Diesel · RO15 ABF

Chronic wear to the offside front suspension arm rear bush and progressively worsening shock absorber oil misting define the mechanical trajectory of this 2015 Audi A4. The pattern is clearest on the offside front lower arm bush, which appeared as an advisory in August 2026 after the vehicle initially failed the same day on headlamp aim faults, a separate but easily rectified issue. The bush was not yet flagged as resulting in excessive movement, meaning the wear is currently within acceptable MOT limits, but its appearance at this mileage is the first clear signal that the front suspension is beginning to show its age. Suspension component deterioration of this nature typically progresses steadily rather than abruptly, so the bush should be regarded as a known pending item rather than an immediate safety concern. Suspension arm bushes and related linkage wear are well documented on A4 chassis of this generation, particularly in the front subframe area, so a buyer should anticipate further advisories or replacement within the next test cycle. The rear shock absorbers tell a more cumulative story. Light oil misting was first recorded on the offside front shock in August 2024 and on the nearside rear shock by July 2025, and by August 2026 the offside rear shock had also developed light misting. With shocks on both ends and both sides now showing this symptom, the damping units are clearly ageing in line with the vehicle, and although light misting alone is only an advisory, it is the standard MOT indicator that the damper seals are beginning to harden and weep. Tyre advisories have appeared in consecutive tests, including perished cracking on the nearside rear, a nearside rear nail in 2024, edge wear close to the legal limit in 2025, and a worn offside rear tyre close to the legal limit, suggesting the tracking, camber, or simply sustained use is consuming tyres faster than ideal. With 77,932 miles recorded over eleven years, the vehicle is averaging roughly 7,085 miles annually, which sits comfortably in the middle of typical usage and confirms consistent road use rather than a laid-up or low-mileage profile. There are no gaps in the testing history, with annual tests present from 2024 through 2026, indicating continuous use and regular exposure to road conditions. This level of annual mileage on an A4 of this age places the vehicle squarely in the range where suspension consumables, bushes, dampers, and tyres all begin to require periodic renewal, and the MOT history confirms that the car is following exactly that expected wear curve. For a prospective buyer, the most valuable physical inspection areas are the offside front lower suspension arm, particularly the rear bush where the advisory was raised, and all four shock absorbers for any further signs of oil seepage down the damper body. On a test drive, listen for clonking or knocking from the front end over uneven surfaces, particularly on speed bumps and pothole edges, as this would indicate the worn bush has progressed beyond MOT tolerance. Pay attention to ride quality; if the car feels excessively bouncy or wallowy over undulations, this would suggest the damper misting has advanced and the shocks are no longer controlling the body effectively. Check the offside front headlamp aim manually before any test drive, as the same headlamp has now failed on two consecutive occasions for incorrect and untestable beam patterns, which on this generation of A4 commonly relates to a failed adjuster motor, a worn pivot, or a deteriorated lens. Finally, inspect all four tyres carefully for both age-related cracking in the sidewalls and uneven inner or outer edge wear, as the repeated advisories for edge wear close to the legal limit suggest a four-wheel alignment check would be prudent alongside any new tyre fitment.