2018 BMW 420D M Sport Auto 2.0L Heavy oil · LR18 PXT

The most recent MOT, dated 15 July 2025, was passed with no recorded defects, indicating that the vehicle met the statutory safety and emissions standards at that time. The preceding MOT in June 2025 recorded a failure but, unusually, listed no specific defects; this suggests the failure was likely administrative or related to paperwork rather than a mechanical shortfall. Earlier tests in 2023, 2022 and 2021 were all passed, with the only advisory being front‑tyre tread depth approaching the legal limit in 2021. Overall the MOT history points to a stable maintenance pattern, with no recurring failures or deteriorating components evident from the recorded data. At eight years old the BMW 420 has accumulated 64 631 miles, translating to roughly 8 000 miles per annum. This is comfortably within the typical UK usage envelope for a premium executive saloon and does not imply excessive wear. There are no large mileage gaps that would indicate long periods of inactivity, so the wear on consumables such as tyres, brake pads and suspension bushings should be consistent with the recorded mileage rather than being accelerated by prolonged standing. Nonetheless, the relatively modest annual mileage means that age‑related degradation—particularly tyre rubber perishing and fluid oxidation—may be more relevant than mileage‑driven wear. Prospective buyers should give the front tyres immediate attention. Even though the advisory was logged in 2021, the current tread depth must be verified; look for uneven wear, sidewall cracking or bulging, and listen for a humming or thumping noise that could indicate a developing separation. While the MOT record shows no current tyre defects, a visual inspection of all four tyres for age‑related hardening is prudent, as rubber can deteriorate after six years regardless of tread depth. In addition, inspect the suspension for any clunking or excessive play when applying the brakes or traversing bumps, as worn coil‑spring mounts or deteriorated bushings can manifest after several years of service. Given the vehicle’s age, a thorough check of time‑sensitive items is advisable. Test the 12‑volt battery for cranking voltage and look for signs of terminal corrosion, especially if the car has spent periods idle. Verify that brake discs are free of deep rust and that pads have sufficient material; any shudder or pulsation under braking could signal disc warping or uneven pad wear. Examine fluid reservoirs for colour and level—engine oil, coolant, brake fluid and power‑steering fluid should be changed at regular intervals, typically every 12‑24 months, regardless of mileage. Finally, request the service book to confirm that scheduled services, including timing‑chain or belt inspections, have been performed, and inspect the under‑carriage for any corrosion or leaking exhaust components that can develop on vehicles that have been stationary for extended periods.