2013 BMW Z4 2.0L Petrol · S5 BXK

The vehicle is currently roadworthy but the maintenance history reveals a worsening trend regarding structural corrosion and component wear. While the most recent test in October 2025 at 69,791 miles resulted in a pass, it followed a failure just days prior for a defective seat belt. The persistence of corrosion on the rear sub-frame and suspension arms across the 2024 and 2025 tests indicates an ongoing structural issue that has not been addressed despite repeated flagging. The mileage profile is notably low for a 13-year-old vehicle, averaging approximately 5,369 miles per year. There is a significant gap of over 6,000 miles between August 2023 and August 2024, followed by another 7,500 miles in the subsequent year leading up to the latest test. This low usage often correlates with periods of standing which can accelerate the degradation of rubber components and surface oxidation, as evidenced by the perished anti-roll bar bushes and corrosion noted in the 2025 record. A buyer must conduct a thorough physical inspection of the rear sub-frame and suspension arms to determine if the corrosion has progressed beyond the levels noted by the tester. The 2024 failure involving fractured inner rims on three wheels suggests the vehicle may have suffered significant impacts, which warrants a check of the alignment and suspension geometry. Additionally, the external damage to the rear shock absorber casings and the low tread depth on the nearside rear tyre indicate that consumable and peripheral mechanical maintenance is being deferred.