2005 BMW 630 3.0L Petrol · JB05 AJB

The BMW 630’s MOT history presents a concerning pattern of repeated failures without any recorded defects, culminating in a clean pass only after multiple retests in December 2025. The most recent test on 8 December 2025 at 86,280 miles passed with no advisories, yet the preceding failure just six days earlier—also at minimal mileage gain—suggests the vehicle was only cleared after rectifying issues not documented in the official record. This inconsistency implies either intermittent faults that resolve temporarily or superficial repairs targeting MOT compliance rather than long-term reliability. The absence of any defects in the passed tests does not guarantee structural or mechanical soundness, particularly given the repeated failures over the past year without explanation. The car’s mileage of 86,280 over 21 years averages just 4,109 miles annually, far below typical usage for its age. The most recent 1,615 miles were covered between February 2025 and December 2025, with no significant mileage jumps, indicating either infrequent use or prolonged periods of inactivity. The two failures in late 2024—on 28 October and 8 November—occurred at identical mileages (84,665), suggesting the vehicle sat unused for weeks or months between tests. Such stagnation can accelerate corrosion, degrade fluids, and lead to seized components, particularly in a model prone to binding brakes or stiff suspension bushes. Given the lack of documented defects, a buyer should prioritise a thorough inspection of the braking system, including caliper operation, disc thickness, and pad wear, as binding brakes were likely the cause of the repeated failures. The suspension—particularly rear bushes, coil springs, and ball joints—should be checked for wear or corrosion, given the car’s age and low mileage history. Structural integrity is also critical; inspect for rust in wheel arches, sills, and underbody, especially if the vehicle has spent time in damp conditions. Fluid levels—brake, coolant, and differential—should be verified, as stagnant fluids can degrade over time. Finally, the exhaust system may require close examination for leaks or corrosion, as these are common in older BMWs with minimal use.