2016 BMW X4 3.0L Diesel · SO65 LXC

The 2016 BMW X4 has passed its most recent MOT on 6 January 2026 at 146,017 miles, with no defects recorded—a clean result that suggests the vehicle cleared all mandatory checks at that point. However, the preceding test cycle reveals a concerning pattern of repeated minor failures, particularly in tyres and suspension components. Tyres were flagged as worn close to the legal limit across all four positions in January 2025, indicating a failure to maintain tread depth despite a 10,429-mile interval since the last clean pass. This suggests either neglect or inconsistent upkeep rather than a sudden mechanical issue. The December 2023 test further exposed worn front suspension arm pins/bushes, a fault that, while not severe enough to fail the test, implies progressive wear in a critical load-bearing area. The trend is not worsening—it stabilises at a level of deferred maintenance—but it does not improve, and the absence of advisories in recent tests means these issues have likely been ignored rather than addressed. The mileage accumulation of 14,602 miles annually over the past decade is unusually high for a vehicle of this age, particularly given the gaps between tests. The largest interval, 12,569 miles, occurred between the January 2022 and December 2023 tests, during which the suspension bushes deteriorated enough to be noted. Similarly, the 9,929 miles between the January 2025 and January 2026 tests saw no new faults, yet the tyres had already been at the legal limit by the former date. This pattern suggests either aggressive driving conditions or prolonged periods where basic maintenance was deferred. The most recent MOT, just six months old, provides no new insights into structural integrity or drivetrain health, leaving critical components like coil springs, rear suspension mounts, and brake caliper binding mechanisms unconfirmed since 2023. A prospective buyer should prioritise a thorough inspection of the suspension system, focusing on the front arm pins/bushes and their alignment with the control arms. The 2023 advisory indicates these components are nearing their operational limit, and further wear could lead to uneven tyre wear, steering instability, or even sudden failure. Rear suspension bushes and coil springs should also be examined for cracking or compression, as these are rarely recorded in MOTs unless they fail outright. Brake systems, while not yet failed, warrant scrutiny for binding calipers or uneven disc thickness—tyre wear patterns in 2025 suggest potential brake-related issues that may have resolved themselves or been masked by recent servicing. Exhaust emissions and structural corrosion should be checked, though the lack of advisories in recent tests offers limited reassurance. Finally, the absence of any advisories in the last two MOTs does not preclude hidden issues; a pre-purchase diagnostic would be prudent to confirm the integrity of the drivetrain and electrical systems, which are not routinely assessed in MOT tests.