2006 Audi A4 2.0L Petrol · RN55 AEF

The vehicle presents a worsening maintenance trend characterized by recurring mechanical and structural issues. While the most recent test on 28 May 2025 at 155,111 miles resulted in a pass, the car required immediate remedial work following a failure just one day prior. The record shows a pattern of escalating complexity, moving from minor exhaust leaks in 2021 and 2022 to significant exhaust gas leaks and Lambda sensor failures in late 2024 and early 2025. The mileage accumulation appears consistent with a vehicle of this age, averaging roughly 7,756 miles per year. The data shows steady progression from 97,432 miles in August 2014 to the current 155,111 miles. There are no significant gaps in testing history, suggesting the vehicle has been in regular use. However, the recent frequency of failures in December 2024 and May 2025 indicates that the vehicle is entering a phase of more intensive component replacement. A prospective buyer must prioritise a thorough inspection of the rear sub-frame due to persistent corrosion noted in the 2024 and 2025 tests. Although the tester stated structural rigidity was not significantly reduced, the presence of long-term corrosion on a chassis component of this age requires careful verification. The engine oil leak has been a documented issue since at least 2018, and while currently described as not excessive, its persistence suggests a long-term seepage that may require further attention. Suspension and drivetrain components also require scrutiny. The May 2025 test flagged a worn offside front lower suspension arm bush and light oil misting from the offside front shock absorber. Given the history of CV boot deterioration in 2018 and various exhaust leaks over several years, the buyer should check the integrity of all rubber seals, mounting bushes, and the entire exhaust system to ensure no recent repairs were merely temporary fixes.