2005 Audi A4 2.0L Diesel · ST55 UHD

The vehicle presents a concerning state of roadworthiness characterized by a trend of deferred maintenance and recurring mechanical failures. While it passed its most recent test in September 2025 at 175,123 miles, the record reveals a pattern of addressing only the minimum requirements to pass inspection. The persistent presence of a Malfunction Indicator Lamp (MIL) across 2024 and 2025 suggests an unresolved electronic or engine fault that remains unaddressed. The maintenance history is reactive, with components replaced only after failing rather than through preventative care. At 175,123 miles, this 21-year-old Audi has averaged approximately 8,300 miles per year, which is consistent with typical annual usage. However, the mileage data shows consistent annual travel, with roughly 7,800 miles covered between September 2024 and September 2025, and another 7,400 miles between the 2023 and 2024 tests. This accumulation places constant demand on age-related components and consumables, which is reflected in the frequent advisories throughout the record. A prospective buyer must prioritise a thorough inspection of the front suspension and braking systems. The tester repeatedly flagged worn anti-roll bar linkage pins and upper suspension arm bushes in 2025, indicating significant rubber degradation in the front-end geometry. The braking system shows a history of thin pads and a binding rear caliper, with pitted and scored discs also noted in 2023. Given the reported coolant leak and serious fluid leak from the nearside shock absorber in 2024, the cooling system and damping integrity must be verified for active leaks to ensure previous repairs were not merely temporary fixes.