2004 Audi A4 1.8L Petrol · YA04 NCJ

The vehicle’s most recent MOT test on 2025-12-18 at 159,501 miles confirms it remains roadworthy, though the history reveals a concerning pattern of repeated failures just before passing. The two consecutive tests in December 2023—both at 143,328 miles—suggest a critical component failed inspection twice before passing, though no specific defects were logged. The subsequent clean passes in late 2024 and early 2025 imply either a temporary fix or that the issue resolved itself, but the lack of transparency in the record raises questions about what was actually addressed. Without detailed advisory notes, the buyer must assume potential recurring problems, particularly in areas like suspension integrity, brake system reliability, or emissions compliance. The mileage progression shows a steady average of around 7,250 miles per year, which aligns with typical usage for a vehicle of this age. There are no extended gaps or abrupt spikes, though the repeated tests at identical mileages in 2023—spaced just one day apart—indicate either a rushed or poorly documented inspection process. The most recent test in December 2025, just five months ago, ensures the vehicle has not yet reached its next MOT due date, but the earlier inconsistencies warrant closer scrutiny. The absence of advisories in the latest pass suggests no immediate red flags were detected, though this does not preclude underlying issues that may not have been fully addressed. Given the lack of specific defect details, the buyer should prioritise an independent inspection of the suspension components, particularly coil springs, bushes, and shock absorbers, as these are common failure points in vehicles of this age and mileage. The repeated failures in 2023 may have been tied to brake binding, worn pads, or warped discs, so the condition of the calipers, master cylinder, and hydraulic lines should be thoroughly checked. Structural corrosion, particularly around wheel arches, sills, and the subframe, is also a risk given the vehicle’s age, and any rust penetration could compromise structural integrity. Emissions-related components, such as the catalytic converter or EGR system, may have been the cause of the 2023 failures, so their functionality should be verified. Tyre tread depth and condition, while not explicitly flagged, should be confirmed as the repeated failures suggest basic maintenance may have been overlooked.