2004 Audi A4 1.9L Diesel · ML54 XHW

A consistent trajectory of structural and mechanical compliance defines the roadworthiness profile of this Audi A4, culminating in a clear pass recorded on April 23, 2026, at 129,425 miles. While recent history shows three consecutive clean passes in 2024, 2025, and 2026, the wider test record reveals periodic interventions. A notable failure occurred in May 2023 due to lighting faults and dangerous tyre degradation featuring exposed cords and illegal tread depths, alongside historical advisories for deteriorating rear brake hoses in 2020, edge-worn tyres and a damaged windscreen in 2021, and upper suspension arm bush wear in 2022. Accumulating 129,425 miles over its 22-year lifespan results in an average of approximately 5,883 miles driven annually, representing a low usage rate for a vehicle of this vintage. This restricted annual mileage indicates periods of lighter utilization or potential storage, which can diminish wear rates on core drivetrain assemblies while simultaneously increasing the susceptibility of rubber components, flexible lines, and exhaust systems to age-related degradation. The continuous presence of fitted undertrays across multiple tests also warrants attention, as these protective panels routinely obscure the underlying chassis, transmission housing, and engine block from immediate visual inspection during routine maintenance. On the test drive, specific attention must be directed toward the front suspension architecture, particularly given the historical advisory regarding wear in the upper suspension arm pins and bushes. Listen carefully for any knocking, clunking, or metallic rattles when navigating potholes, speed bumps, or uneven road surfaces, and evaluate the steering for any vagueness or pull that would indicate advanced joint fatigue. Furthermore, inspect the rear brake hoses for surface cracking, verify that the rear parking brake operates correctly, and ensure the brake pedal feels firm and progressive without excessive travel or judder. Because the vehicle's engine and underbody components have frequently been concealed beneath undertrays, a manual inspection using a torch and a vehicle ramp is strongly recommended prior to purchase. Check the chassis legs, subframes, and sills for structural corrosion, and closely examine the engine bay and transmission for hidden oil or fluid leaks that may have been masked during previous MOT presentations. Verifying the condition of the tyres, confirming uniform tread depth across all four corners, and ensuring all interior electronics and exterior lighting fixtures function reliably will help complete a thorough evaluation of the car's mechanical state.