2015 BMW 640 3.0L Diesel · SJB 7X

The most recent DVSA examination dated 5 January 2026 records a PASS with no advisories or defects, which represents a clean bill of roadworthiness at the time of test. Reviewing the trajectory across the recorded MOT history, the pattern is broadly stable with intermittent advisory items rather than a worsening trend. The 2026 test is in fact the cleanest result since 2020, suggesting that the issues flagged in 2021 and 2025, predominantly brake disc wear, were addressed through component replacement or rectification prior to the latest assessment. There is no evidence of recurring structural or systemic failures, which is reassuring for a vehicle of this age and mileage bracket. The advisory issued in 2019 regarding a minor windscreen blemish is cosmetic only and has not reappeared, indicating it was either repaired or remained within acceptable limits. With 201,951 miles recorded over an 11-year period, the annual mileage equates to roughly 18,359 miles, which is markedly higher than average UK usage of around 8,000 miles per year. The MOT history shows no significant gaps in testing, but the mileage accumulation between tests is considerable, with several thousand miles covered in each interval. This sustained high usage places substantial demand on consumables, suspension components, engine and transmission internals, and braking hardware. High-mileage examples of the BMW 640, particularly the larger engine variants and associated automatic transmissions, are susceptible to wear in items such as timing chain guides, valve stem seals, oil separator diaphragms, and gearbox mechatronic units. Buyers should anticipate that major service items may be imminent or recently required, and verification of comprehensive stamped service history is essential. The advisories recorded in 2025 and 2021 regarding pitted and scored brake discs across both axles suggest a recurring pattern of brake disc surface degradation, which is common on vehicles with significant mileage and those used in mixed driving conditions. On a test drive, listen for any brake shudder under firm pedal application, which would indicate disc runout beyond acceptable limits, and observe whether the vehicle pulls to either side under braking. The nearside front brake disc back plate advisory from January 2025 should have been rectified prior to the clean 2026 test, but a thorough inspection underneath should confirm the fix is secure and not fouling the disc. The tyre wear advisories from 2018 and 2021, particularly the inner edge wear noted on the fronts in 2021, are worth investigating through a geometry check, as unusual inner-edge wear on a BMW often points to worn control arm bushings or thrust arm components rather than simple alignment adjustment. Given the high recorded mileage and the vehicle being an 11-year-old prestige model, a prospective buyer should undertake a series of age and mileage-appropriate physical inspections beyond the MOT record. Examine all four tyres for sidewall perishing and cracking, as rubber compounds harden and degrade with calendar age regardless of tread depth, and verify that replacements are matched in brand and specification. Check the 12V battery state, as original equipment units would be well beyond their service life and modern BMW electrical systems are sensitive to voltage drop. Inspect brake calipers for any signs of binding or seized pistons, particularly after periods of standing, and examine the discs for any fresh corrosion that has not been cleaned off through use. Verify the coolant, brake fluid, and automatic transmission fluid service intervals, as these are time-based rather than mileage-based and often overlooked. Finally, listen on a cold start for any timing chain rattle from the engine bay, monitor the gear selection for any hesitation or harsh shifts, and confirm the full BMW service book and digital service history are present, with documented replacement of items consistent with the recorded mileage.