2016 BMW 420 2.0L Diesel · UK02 AJB

The BMW 420d’s roadworthiness record presents a mixed but ultimately reassuring picture, with the vehicle passing its most recent MOT in August 2025 at 69,678 miles—just days before the July 2026 evaluation. The only prior failure occurred in July 2025, also at 69,678 miles, due to three exposed or deeply cut tyres, a fault that was clearly rectified within a week. This suggests the issue stemmed from a single oversight rather than systemic neglect, and the subsequent pass indicates prompt attention to a straightforward consumable failure. Earlier tests in 2024 and 2023 showed no defects, though the 2023 entry did flag minor suspension wear—a near-side lower arm bush and slight damage to the front arm—neither of which required immediate repair. The trend here is stable, with no signs of escalating mechanical or structural problems, though the suspension components warrant closer scrutiny moving forward. Mileage accumulation aligns closely with typical expectations for a vehicle of this age, averaging around 6,968 miles annually over its 10-year lifespan. The gaps between tests are consistent, with roughly one-year intervals between MOTs, and mileage increments reflect steady but not excessive use. For example, the jump from 56,097 miles in August 2022 to 58,172 miles in July 2023 represents about 2,075 miles over 11 months, a pace that continues through to the 2025 tests. There’s no evidence of prolonged periods of inactivity or rapid mileage spikes that might suggest abuse or neglect, though the lack of defects in some tests could also imply selective maintenance or minor issues being addressed privately. For a prospective buyer, the suspension components on the near-side front lower arm should be the primary focus during a pre-purchase inspection. The 2023 MOT advisory for wear and damage to the bush and arm—while not critical at the time—could indicate accumulated stress or prior impact damage. Binding or excessive play in these parts could compromise handling and tyre wear over time. Additionally, given the recent tyre failure, a thorough check of all four tyres for cuts, bulges, or uneven tread is essential, alongside verifying the age of the current set. The absence of brake-related advisories or emissions failures in recent tests is positive, but a brake system inspection—including caliper condition and disc thickness—would provide further confidence. Structural integrity appears sound, though a check for corrosion in wheel arches or underseal would align with the vehicle’s age and usage pattern.