2015 Audi A5 2.0L Diesel · W123 ACC

The 2015 Audi A5 currently holds a valid MOT having passed on 10 August 2026 with no defects or advisories recorded, following a failure three days earlier that was almost entirely tyre-related. The broader trend across the recent test history suggests a vehicle that is fundamentally well-maintained but shows emerging front-end wear consistent with its age and mileage. The 2023 test was completely clean, but the 2024 and 2025 tests began recording repeated advisories relating to front suspension components, and the 2026 failure reinforced concerns around front tyre condition. While not yet a cause for alarm, this trajectory indicates that the front axle consumables are now entering the phase where proactive replacement is advisable to prevent a repeat failure or a more expensive repair further down the line. With 95,419 miles recorded over approximately eleven years, this A5 averages around 8,674 miles per year, which is broadly typical for its age and usage class. There is no indication in the MOT record of either extended standing periods or unusually rapid accumulation, and the steady progression of annual tests suggests the vehicle has been in regular use. This kind of mileage pattern is generally favourable for mechanical longevity, as it keeps fluids circulating, prevents severe corrosion from prolonged standing, and avoids the issues associated with very low-mileage cars such as seized brake calipers, perished rubber components, and degraded battery health. Even so, the recorded miles are now firmly in the bracket where clutches, timing chain service items (Audi's chain-driven TFSI units are known stretchers), and gearbox mechatronic servicing on automatic variants become relevant considerations regardless of how gently the car has been used. The most pressing item from the MOT history is the front suspension cluster flagged on the 2025 test. Light oil misting on both front shock absorbers is typically the early stage of seal failure and will progress to a more substantial loss of damping fluid, eventually resulting in reduced wheel control, increased stopping distances, and uneven tyre wear across the front axle. On a road test, listen for clonking or knocking over uneven surfaces and watch for excessive front-end dive under braking or wallowing through corners. The advisory regarding the nearside front lower suspension arm pin or bush is also significant, as these polyurethane or rubber bushes harden and crack with age, allowing increased toe movement that manifests as vague steering, tramlines on uneven roads, and uneven inner or outer tyre wear. Given the August 2026 failure showed an offside front inner tyre with exposed ply or cords, this is consistent with a suspension geometry issue accelerating inner-edge wear, and the vehicle should be placed on a ramp for a thorough inspection of all front wishbones, anti-roll bar drop links, and bushes before purchase. The pitted front brake discs noted in 2025 are also likely to have worsened; check for brake shudder under heavy application and inspect disc thickness, as the pitted surfaces will have continued to corrode and may now be approaching or beyond the minimum wear limit. Beyond the documented MOT items, a buyer should conduct a focused physical inspection appropriate to an eleven-year-old Audi. Verify the production week code on the tyres, since sidewall perishing and cracking from age can render even well-treaded tyres unsafe, and ensure all four tyres are of matching size and specification to avoid ABS and traction control intervention issues. Check the 12V battery's state of health, as Audi's complex electrical systems are sensitive to voltage drop and a failing battery can generate misleading fault codes. Inspect the exhaust system for corrosion at the silencer mounts, flexible joint, and rear box, particularly given UK road salt exposure, and look for any signs of coolant weepage around the water pump, thermostat housing, and the radiator matrix, all common failure points on this generation of A5. Finally, verify the service history stamps and confirm that brake fluid has been changed within the last two years, coolant within the last four, and that the automatic gearbox fluid and filter (if applicable) have been serviced, as calendar-based fluid degradation is one of the most overlooked aspects of used-car evaluation and can lead to disproportionate component wear if neglected.