2004 Audi A4 1.9L Diesel · PL53 WHV

The most recent DVSA examination on 12 May 2025 resulted in a pass, although the vehicle had previously failed the same test on the same date due to an inoperative offside front headlamp on dipped beam, a defect that was remedied prior to the recorded pass. Across the available MOT history, the maintenance trend is broadly stable rather than deteriorating, with passes consistently achieved after relatively minor remedial work. However, the 2022 test cycle warrants careful scrutiny, as that inspection identified a dangerous defect for both front tyres with tread depth below 1.6mm, a major defect for an offside front suspension component mounting exhibiting excessive corrosion that significantly reduced structural strength, and a major defect for severely reduced offside headlamp light intensity. The fact that these serious defects have not recurred since 2022 suggests they were addressed appropriately, but the underlying corrosion identified on front and rear sub-frames in subsequent advisories indicates ongoing structural surface degradation that should be monitored. Against a recorded 245,699 miles over 22 years, the vehicle averages approximately 11,168 miles annually, which is broadly typical for its age and consistent with steady, mixed-use driving rather than extended periods of standing or unusually high wear. There is no evidence in the MOT record of significant mileage gaps or erratic accumulation, suggesting the odometer reading is likely to be genuine and that mechanical components have been exercised regularly. This level of use on a high-mileage Audi A4 of this vintage means that wear items such as suspension bushes, anti-roll bar links, engine mounts, clutch assembly, dual mass flywheel if fitted, and turbocharger if applicable will have accrued considerable fatigue, even if no specific advisories have been recorded against them. The advisory issued in 2025 regarding an offside rear anti-roll bar pin or bush worn but not resulting in excessive movement, combined with the recurring front sub-frame corrosion advisory, points to the need for careful underbody inspection at the point of purchase. During a test drive, the buyer should listen for clonking or knocking noises from the rear suspension over uneven surfaces, which would indicate progression of the anti-roll bar wear, and feel for any vagueness or imprecise turn-in response that might suggest further bush deterioration. The persistent advisory regarding the offside front drive shaft constant velocity boot being severely deteriorated across both 2024 and 2025 tests is of particular concern, as a split CV boot allows water and grit ingress, accelerating joint wear; on test drive, listen for a clicking or knocking noise on full lock turns and inspect the boot itself for any splits or grease loss. The 2024 oil leak advisory, noted as not excessive, should be monitored for any worsening, and the underside inspected for fresh oil residue on the sump, cam chain cover, or rear main seal area. Given the vehicle's age and mileage, additional buyer-side inspection should focus on items that MOT testing does not fully cover but are highly relevant to a 22-year-old Audi. The brake discs are likely to exhibit significant edge corrosion and lipping from age and weather exposure, so a road test should include a series of firm stops from moderate speed to assess for brake shudder, vibration through the steering wheel, or any pulling to one side that might indicate a binding caliper or a stuck handbrake mechanism. Brake fluid should be checked for its replacement interval, as it degrades hygroscopically over time regardless of mileage. The 12-volt battery should be tested for its state of health, and the coolant and timing belt service history verified, as the latter is a particularly heavy and costly item on these vehicles if overdue. Tyres should be examined not only for tread depth but for sidewall cracking and perishing consistent with age, as old rubber hardens and compromises grip regardless of remaining tread. Finally, the bodywork, wheel arches, and chassis rails warrant close inspection for rust, particularly around the front strut tops, jacking points, and rear suspension mounting areas, as corrosion in these locations can swiftly progress from advisory to dangerous defect.