2004 Audi A4 2.5L Diesel · YY04 LLA

The most recent MOT, carried out on 25 November 2022, was passed with no recorded defects, and the preceding test in November 2021 also returned a clean pass. This consistent record suggests a stable maintenance pattern; there is no evidence of deteriorating condition or recurring failures over the past two years, which is a positive indicator of the vehicle’s overall roadworthiness. At 138 053 miles on a 2004 model, the car averages roughly 6 300 miles per annum, a usage rate that sits comfortably within the typical range for a vehicle of its age. The mileage is not excessive, but the relatively modest annual distance could imply periods of limited use or extended storage. Such intervals can accelerate ageing of rubber components, seals and the 12‑volt battery, even when the clock‑mileage remains moderate. Given the clean MOT history, the buyer should focus on age‑related inspections. Examine the tyre sidewalls for cracking, hardening or dry‑rot, and verify that tread depth meets the legal minimum; tyres older than six years should be considered for replacement regardless of tread. A load‑test of the battery is advisable, as prolonged inactivity can reduce cranking power and cause premature failure. Inspect the brake discs for surface rust, scoring or uneven wear and ensure the pads have sufficient thickness; any shudder or pulsation under braking may indicate warped discs. The suspension should be checked for worn bushings, deteriorated coil springs and any play in the control arms, which can manifest as clunking noises over bumps. Verify that all fluid reservoirs are topped up, that the engine oil is clear and at the correct level, and that the coolant and brake fluid show no signs of contamination or excessive darkening – a fluid change is recommended if the service book does not record a recent top‑up. Particular attention should be given to the timing belt; on this model the belt is generally due around 80‑90 000 miles or every five years, so confirmation of a documented replacement is essential, otherwise a pre‑emptive change is prudent to avoid catastrophic engine damage. During a test drive, listen for any rattles or knocks from the front suspension, especially when traversing uneven surfaces, and note whether the steering feels tight or exhibits excessive play. Observe the braking response for consistent pedal feel and the absence of vibration or pull to one side. Watch for any exhaust smoke that is unusually thick, blue, or black, which could indicate oil burning or rich combustion. Finally, inspect the under‑carriage for corrosion on the wheel arches, sills and chassis rails; excessive rust can compromise structural integrity and should be addressed before committing to purchase.