2008 Audi A5 3.0L Diesel · JM05 MJM

Structural corrosion of the rear subframe and a pattern of suspension component failure define the mechanical history of this vehicle. The test on 4 September 2026 resulted in a failure, primarily due to lighting defects, but more critically highlighting heavy corrosion to the rear subframe and its upper mountings. This follows a trend of deteriorating chassis and suspension health, including a previous failure in August 2025 due to fractured rear coil springs and recurring issues with front suspension linkages. With 161,551 miles recorded over 18 years, the vehicle has averaged approximately 8,975 miles per year. This usage pattern is typical for its age, meaning the mechanical wear observed in the MOT history is consistent with a car that has seen regular road use. At this mileage, the wear on drivetrain components, suspension bushings, and braking systems is expected, and the recorded failures in the suspension system align with this level of accumulation. Prospective buyers should pay close attention to the rear subframe, as the record indicates heavy corrosion that has progressed to the upper mounting prescribed areas. During a physical inspection, the underside should be checked for significant scale or pitting that could compromise structural integrity. On a test drive, listen for knocks or clunks when traversing uneven surfaces or during low-speed cornering, which may indicate that the previously flagged front lower suspension arm ball joints or bushings have deteriorated again. The history of fractured rear coil springs and recurring ball joint dust cover failures suggests a need for a thorough check of the entire suspension geometry. Check for any unevenness in the vehicle's stance or instability during braking and acceleration. Additionally, the recurring minor failures regarding the rear position and stop lamps suggest a potential electrical fault or recurring bulb failure in the rear lighting clusters that requires rectification.