2016 Audi A4 2.0L Diesel · YR16 SZZ

A persistent pattern of front suspension arm bush wear is the defining mechanical feature of this 2016 Audi A4's MOT history, with the same nearside and offside front lower rear arm pin or bush advisory appearing at every test between 2022 and 2024, transitioning from an inner bush reference in 2022 to the rear arm pin or bush reference in 2023 and 2024. The 2025 test on 22 September returned a clean pass with no advisories recorded, which suggests either replacement of the worn components or that movement has not yet deteriorated to advisory level, though the four-year recurrence pattern indicates the underlying bushes are likely approaching the point where movement will become excessive and trigger a failure. The single recorded failure on 4 October 2022 was caused by an inoperative or malfunctioning engine management indicator lamp (MIL), an emissions-related issue that on a 2016 Audi could relate to lambda sensor output, ignition misfires, EVAP system faults, or DPF efficiency, and a prospective buyer should verify whether diagnostic trouble codes were subsequently cleared and whether the underlying fault was rectified. With 156,566 miles accumulated over approximately ten years, the vehicle is running at an annual rate of roughly 15,657 miles, which is substantially above the average UK mileage of around 7,500 to 9,000 miles per year. There are no significant gaps in the MOT testing record, with annual tests consistently recorded from 2019 through 2025, indicating the vehicle has been in regular use throughout its recorded history rather than subject to extended standing periods. This sustained high-mileage usage places proportionately greater demand on engine and drivetrain internals, clutch and dual mass flywheel wear, turbocharger seals and associated vacuum lines, suspension components and bushes, and brake system consumables. The earlier advisories on rear brake disc pitting and front brake pad wear align with this usage profile and are consistent with wear items that have already been addressed or are approaching the threshold for replacement. Given the chronic front lower arm bush advisories spanning four consecutive tests, particular attention should be paid to the front suspension on a road test. Listen for clonking or knocking noises from the front end over speed humps, rough road surfaces, and during full-lock low-speed manoeuvres, and feel for vagueness or delay in the steering response when changing direction at speed. With the vehicle jacked and the wheels loaded, a technician should physically check the rear arm pin or bush joints on both sides for any free play, as the borderline advisories suggest movement is close to the legal threshold. The rear brake discs flagged as pitted and scored in 2022 warrant a check for pedal judder under firm braking, while any reappearance of an engine management lamp on the test drive should prompt immediate OBD scanning for stored fault codes. Other items worth scrutinising given the mileage and age include the timing chain and associated tensioners, particularly on the petrol and diesel engines fitted to this generation of A4, along with evidence of oil leaks from the cam chain cover, turbo oil feed and return pipes, and sump area. Coolant system integrity is also relevant at this mileage, with the thermostat housing, water pump, and plastic coolant pipes commonly failing on higher-mileage Audi four-cylinder units. Inspect the underside of the engine and gearbox for any signs of oil misting or fresh weeping, and verify that the dual mass flywheel is not producing a pronounced rattle on cold start or a chatter when pulling away in first gear. Finally, examine the tyres closely for uneven inner or outer shoulder wear, which on this model often points to worn suspension components, tracking misalignment, or worn front thrust arm bushes beyond those already recorded, and ensure the offside rear inner tyre deformation noted in 2023 has not been allowed to recur.