2021 BMW X4 XDRIVE20D M Sport Mhev Auto 2.0L Electric diesel · RL54 CPS

A clean, unbroken pass record from the three recorded MOT tests covering 2024, 2025 and 2026 provides a steady baseline of roadworthiness for this 2021 BMW X4 xDrive20d M Sport MHEV. The most recent examination on 28 August 2026 returned no advisories or defects, and the two prior tests in September 2025 and September 2024 were similarly clear. With no recurring component flags, structural corrosion notes, or emission failures appearing across the test history, the documented record does not point to any chronic mechanical weakness. The absence of advisories is notable given the vehicle's age and mileage, as many diesel SUVs of this vintage tend to accumulate at least minor wear items such as brake disc corrosion or suspension bush degradation by their fifth year. Recorded mileage stands at 51,585 miles against an age of approximately five years, equating to an annual average of around 10,300 miles. This places it squarely within typical usage parameters for a diesel premium SUV, neither suggesting long periods of inactivity nor heavy commercial-style accumulation. The even annual spread implied by consecutive tests in 2024, 2025 and 2026 indicates consistent regular use, which from a mechanical standpoint generally supports healthier component condition than a low-mileage example subject to extended standing. Diesel particulate filter function, turbo actuator operation, AdBlue system integrity and dual-clutch or automatic transmission fluid health all tend to benefit from regular running rather than sporadic short trips, and the mileage profile here is consistent with that scenario. For a prospective buyer, the absence of recorded advisories means there is no specific component history to investigate beyond standard due diligence on this model. On a test drive, attention should be paid to the areas most commonly found wanting on a five-year-old xDrive20d: listen for any clonks or shuffling from the front suspension over speed humps and rougher tarmac, particularly from the trailing arms and anti-roll bar linkages, which carry significant unsprung weight on this platform. Brake pedal feel should be firm and progressive without excessive judder under braking, and the steering should remain precise without vibration or pulling, both of which can indicate warped front discs or worn lower control arm bushes. It is also worth confirming that the xDrive system engages smoothly on loose surfaces and that there is no excessive delay or shunt from the automatic transmission when cold. Given the clean MOT history, a thorough pre-purchase inspection should focus less on resolving known defects and more on forward-looking wear items and condition checks not covered by the MOT test. A diagnostic scan for stored fault codes across all modules, particularly relating to the mild hybrid 48V electrical system, DPF regeneration history, and any turbo or emissions-related entries, would be prudent. Underneath the vehicle, an examination for early signs of structural or underbody corrosion around the rear axle, fuel and brake lines, and exhaust mounting points is advisable given the vehicle's age and exposure to winter road conditions. Finally, verifying full BMW service history with documented AdBlue top-ups, oil changes, and any timing chain or injector work on the B47 diesel engine will round out a proper evaluation of this otherwise well-presented example.