2016 BMW 4202.0L Diesel

The 2016 BMW 420 shows a stable roadworthiness trend over its MOT history, with the most recent test on 7 April 2026 at 89,402 miles resulting in a clean pass—no defects or advisories recorded. This consistency across five consecutive tests, including a single retest in March 2023, suggests the vehicle has avoided major mechanical failures or recurring issues. The absence of advisories in any test implies no unresolved concerns were carried forward, though this does not preclude hidden wear or deferred maintenance. The vehicle’s compliance with emissions and structural checks remains uncompromised, but the lack of advisories also means no prior owner has flagged concerns like suspension degradation or brake binding, leaving those areas as critical inspection priorities. Mileage progression reveals a steady but typical usage pattern for a vehicle of this age, averaging around 8,940 miles annually. The gap between tests aligns with the MOT cycle, with no unusual acceleration or deceleration in mileage—from 36,238 miles in March 2023 to 40,947 miles in March 2024, the vehicle covered roughly 4,700 miles in a year, and similarly consistent increments follow. The retest in March 2023 at 36,238 miles, just five days after failure, indicates the owner addressed the issue promptly, though the failure itself was unrecorded, suggesting it may have been a minor oversight or a component not strictly MOT-critical. No prolonged periods of inactivity are evident, ruling out excessive wear from neglect. Given the lack of recorded defects, a buyer should prioritise an in-person inspection of the suspension components, particularly the rear coil springs and bushes, which often degrade before showing MOT-level issues. The brakes, while never failing an MOT, may exhibit uneven wear or binding calipers—common in BMWs with age—so a thorough check of disc thickness, pad condition, and hydraulic integrity is essential. Structural integrity should be assessed for corrosion, particularly around wheel arches, sills, and the subframe, as rust can compromise safety without immediate MOT consequences. Finally, the exhaust system warrants scrutiny for leaks or excessive rust, as emissions compliance has never been noted as an issue but could deteriorate over time. The engine bay should be inspected for fluid leaks, as oil or coolant contamination often goes unrecorded until it reaches critical levels.