2004 BMW 645 4.4L Petrol · LT54 UZN

The most recent MOT inspection on 30 July 2026 resulted in a pass, but the vehicle's maintenance trend shows signs of progressive mechanical degradation rather than stability. While the car has avoided major failures in the last two years, the advisory list has become increasingly complex, moving from isolated tyre and seal issues to more significant steering and drivetrain concerns. The recurrence of an oil leak across multiple years suggests a chronic issue that has not been rectified, and the recent addition of steering rack and universal joint defects indicates that components critical to directional control are now reaching the end of their serviceable life. With a total recorded mileage of 83,788 over 22 years, this BMW averages approximately 3,809 miles per year, which is significantly lower than the UK national average. While low mileage often implies less internal engine wear, it presents specific risks for a vehicle of this age. Long periods of inactivity or infrequent use can lead to the degradation of rubber components, such as the fuel cap seal and steering joints noted in the history, and can cause fluid breakdown or moisture accumulation in the braking and cooling systems. The low usage profile suggests this vehicle may have spent considerable time stationary, which often accelerates the perishing of seals and the corrosion of suspension elements. A prospective buyer must pay close attention to the steering system during a test drive. The advisories regarding play in both the nearside and offside steering rack inner joints, alongside a deformed steering column universal joint, are serious matters. You should listen for any knocking, clunking, or vague, wandering sensations through the steering wheel, particularly when navigating uneven road surfaces or performing low-speed manoeuvres. These defects indicate that the steering rack and column components are worn, which will eventually compromise precision and safety. Furthermore, the persistent oil leak, while currently described as not excessive, requires careful monitoring. Inspect the engine bay and undercarriage for fresh pooling and check the level of engine oil frequently to ensure the leak does not escalate into a critical failure. Beyond the documented defects, the vehicle's age and low mileage necessitate a thorough physical inspection of all age-related consumables. Check the tyres thoroughly for sidewall cracking or perishing, as rubber degrades over time regardless of tread depth. Given the history of shock absorber misting, inspect the suspension for any signs of significant fluid leakage or uneven ride height. Because the car has been driven infrequently, verify the condition of the 12V battery and ensure the service history includes calendar-based fluid changes for the brake fluid, coolant, and transmission oil, as these liquids absorb moisture and degrade chemically even when the vehicle is not in motion. Finally, check for any signs of binding calipers or brake disc corrosion that can occur when a vehicle sits for extended periods.