2012 BMW 640 3.0L Diesel · S6 XAG

The vehicle holds a current MOT certificate issued on 19 June 2025 at 90,449 miles, valid until 18 June 2026. The maintenance trend is broadly stable but shows a recurring pattern of front brake disc wear that has persisted across multiple test cycles. The most recent test flagged both front brake discs as worn, pitted, or scored, though not seriously weakened. This is the second time this exact defect has appeared, first surfacing in the April 2023 test at 83,741 miles. The issue was not rectified before the 2024 clean pass, suggesting the discs were replaced or skimmed, only for the same wear pattern to re-emerge by mid-2025. A more serious structural fault appeared in the May 2027 failure when both rear coil springs were fractured or broken at 88,473 miles. That defect was resolved before the retest three days later, and no suspension faults have reappeared since. The record indicates a vehicle that has had intermittent but genuine mechanical issues rather than a pattern of neglect. The mileage progression is consistent and unremarkable for a 2012 vehicle now at 90,449 miles. Between April 2022 and April 2024, the car covered roughly 13,816 miles over two years, averaging around 6,900 miles annually. The gap between the April 2024 and June 2025 tests shows only 1,976 miles added in just over twelve months, suggesting lighter recent use or a period of reduced driving. There are no suspicious mileage gaps or rapid accumulation spikes that would raise concerns about clocking or excessive wear. The annual average of approximately 6,461 miles sits comfortably within typical usage for a vehicle of this age and type. A buyer should focus the physical inspection on the front braking system. The repeated advisory for worn and pitted front discs across two separate tests points to either a caliper issue causing uneven pad contact, inferior disc quality after a previous replacement, or driving habits that accelerate disc wear. Have a technician measure disc thickness and run-out, and check the caliper slides and pistons for binding. The fractured rear coil springs from 2024 were repaired, but the rear suspension should still be inspected for corrosion around the spring seats and dampers, particularly given the vehicle's age. Check for any signs of uneven ride height or knocking over bumps. The exhaust and underbody should also be examined for corrosion, as BMW models of this era can develop corrosion on subframes and suspension mounting points. Tyre condition and age should be verified, especially given the lower recent mileage, as older tyres with good tread can still present a safety risk if they are beyond five or six years old.