2018 BMW 640 3.0L Diesel · MJ 1845

The most recent MOT test on 2026-04-27 resulted in a pass, though it included two critical advisories regarding the nearside and offside rear tyres, each showing wear close to the legal limit and exhibiting edge wear of 3mm. This follows a pattern of recurring tyre-related issues, with previous MOTs in 2025 and 2024 also documenting similar wear patterns, particularly feathering on the offside rear tyre and a dangerous tear on the nearside front inner tyre in 2025. While the 2024 test was clean, the persistence of tyre advisories suggests either inconsistent or inadequate tyre management, which could indicate either underinflation, poor alignment, or excessive cornering forces that accelerate wear. The presence of a tyre tear is particularly concerning as it may signal underlying structural weaknesses in the tyre’s sidewall or bead area, which could compromise road safety if not addressed promptly. The vehicle’s recorded mileage of 39,959 miles at the time of this assessment represents a relatively low annual usage rate of approximately 4,995 miles per year, which is notably lower than industry averages for a vehicle of this age and class. Such low mileage can often reflect periods of prolonged inactivity, particularly if the car has been stored for extended durations, which may contribute to issues like tyre perishing, standing corrosion, and fluid degradation over time. However, the absence of significant mileage accumulation over the past year suggests either deliberate low usage or operational constraints, though this does not inherently preclude wear from other factors such as poor maintenance practices or environmental exposure. The combination of low mileage and recurring tyre advisories warrants careful consideration, as tyres are particularly susceptible to damage from prolonged standing or improper storage conditions. To proceed with a thorough physical inspection, the prospective buyer should prioritise checking the tyre condition beyond the MOT records. The offside rear tyre’s feathering and edge wear indicate it may have been subjected to uneven loading or misalignment, so verifying tyre alignment and ensuring all tyres are properly inflated to the manufacturer’s specifications is essential. On a test drive, listen for unusual noises from the tyres, such as excessive squealing or vibration, which could signal further deterioration. The dangerous tear on the nearside front inner tyre demands immediate attention, as it may require tyre replacement or, in severe cases, structural reinforcement. Additionally, inspect the tyre sidewalls for signs of perishing, cracking, or dry rot, which can compromise tyre integrity and safety, especially given the vehicle’s age and the previous MOT findings of sidewall wear and perishing. Beyond tyres, the buyer should examine the vehicle’s suspension and braking systems, as the light misting of oil in the offside rear shock absorber noted in the 2023 MOT suggests potential hydraulic or mechanical issues that may worsen with continued use. During a test drive, observe for signs of suspension clunks, uneven ride quality, or excessive bounce, which could indicate worn suspension bushes, broken coil springs, or failing dampers. The brake system should be inspected for signs of corrosion on discs and linings, particularly on the nearside front where calipers may bind due to prolonged standing. Check for brake fluid leaks, which could indicate failing master cylinders or hydraulic lines, and listen for grinding or squealing noises during braking, which may signal worn brake pads or damaged discs. Given the vehicle’s age and low mileage, it is also prudent to verify the condition of the 12V battery, as prolonged inactivity can lead to sulphation or corrosion, and ensure all fluids—oil, coolant, and brake fluid—are within specification and free of contaminants. Finally, consult the service history for any missing or outdated service stamps, particularly for fluid changes and filter replacements, as these are critical for maintaining long-term reliability.