2015 BMW 640 3.0L Diesel · S2 SFO

The vehicle is currently roadworthy, but the maintenance trend shows a recent decline in brake and tyre condition. Following two clean tests in early 2024 and 2025, the car failed its most March 2026 test at 42,341 miles due to multiple brake fluctuations and a worn tyre. While it passed the retest the following day at 42,407 miles, the persistence of fluctuating service brakes and worn discs indicates the braking system is reaching a stage of significant wear. At 42,407 miles over eleven years, this BMW has covered exceptionally low mileage, averaging approximately 3,855 miles per year. This low usage pattern is consistent with the clean records seen between February 2023 and February 2025. However, the gap of only 2,698 miles between the two most recent annual tests suggests the vehicle may have sat stationary for extended periods. Such low-mileage operation often leads to surface corrosion on brake rotors and the degradation of rubber-based suspension components despite the low mechanical wear. A buyer must conduct a close inspection of the braking system, as the record shows recurring issues with both front and rear axles. The tester flagged fluctuating brakes in 2023 and again in March 2026, which typically indicates warped discs or sticking calipers that require attention. The offside rear tyre being worn on the edge in the 2026 test also suggests an alignment issue or worn suspension bushings that should be verified. Given the age of the car and the low mileage, checking for perished seals and fluid leaks is essential to ensure long-term mechanical reliability.