2005 Audi A4 2.0L Petrol · SM55 BNN

The vehicle most recently passed its MOT on 1 July 2026, although this followed an initial failure on the same day. The overall maintenance trend is concerning, as it indicates a pattern of reactive rather than preventative care. There are recurring defects across several years, particularly regarding the exhaust system and rubber boots, suggesting that advisories are frequently ignored until they become mandatory failures or persist as long term faults. With 130,538 miles recorded over 21 years, the vehicle has averaged approximately 6,216 miles per year, which is considered typical for its age. This level of usage implies a balanced wear profile, though the mechanical implications are evident in the degradation of suspension bushes and drivetrain seals. A significant gap in the MOT record between late 2022 and mid 2026 is noteworthy, which may indicate a period of prolonged standing. This increases the risk of seized brake calipers, perished rubber components, and calendar based fluid degradation. Prospective buyers must pay close attention to the drivetrain and suspension. The recurring failure and deterioration of the constant velocity boots, specifically the nearside front outer and offside front inner, are critical. During a test drive, listen for rhythmic clicking or popping sounds when steering at full lock, which indicates joint failure. Additionally, the history of worn ball joint dust covers and current suspension corrosion suggests that the front end may be nearing the end of its service life. Listen for clunks or knocks when traversing uneven surfaces, as this often signals worn suspension bushes or ball joints. The exhaust system requires immediate scrutiny due to persistent leaks recorded since 2020, including a specific issue with the Y section and lambda readings. Check for excessive noise during idling and visible soot marks around the joints. Furthermore, the history of pitted brake discs and uneven tyre wear on the edges suggests potential wheel alignment issues or brake binding. Inspect the tyre sidewalls for cracking and check the brake discs for heavy corrosion, especially given the potential period of inactivity. Finally, verify the current status of the front oil leak noted in previous records to ensure the engine seals remain intact.