2021 BMW X4 XDRIVE20D M Sport Mhev Auto 2.0L Electric diesel · SL71 EHT

The most recent DVSA MOT test for this 2021 BMW X4 xDrive20d M Sport MHEV was conducted on 6 December 2025 and resulted in a clean pass with no defects, advisories, or failures recorded. The previous test on 13 December 2024 also returned a pass with no defects, and the absence of any advisory notes across two consecutive tests suggests the vehicle has been maintained to a satisfactory roadworthy standard. While the MOT history is presently limited to these two entries, the clean outcome and lack of recurring advisories point toward a stable maintenance trend. For a buyer, this is a reassuring indicator, although it should be noted that MOT testing only verifies compliance at a moment in time and does not guarantee the condition of consumables or service items that fall outside the test scope. With 57,412 miles recorded over approximately five years of service, this X4 is averaging around 11,500 miles per annum, which is broadly typical for its age and class. There is no evidence in the recorded data of excessively high mileage accumulation that might accelerate wear on major drivetrain components, nor are there any obvious gaps suggesting prolonged periods of standing. That said, a moderate annual mileage means the diesel engine, xDrive all-wheel-drive system, eight-speed automatic transmission, and common-rail injection components have all been worked consistently, which is generally beneficial in preventing issues associated with infrequent use such as oil seal drying or turbocharger carbon build-up. Buyers should nevertheless confirm that the manufacturer-recommended service intervals have been observed and that the digital service history is fully populated. Given the clean MOT record and the absence of any flagged advisories, the buyer inspection should focus on age-and-mileage-related items that fall outside statutory testing. The tyres should be examined closely for sidewall perishing or cracking from age-related rubber degradation, even if the tread depth remains above the legal minimum, and the DOT date code should be checked to confirm the tyres are within a reasonable service life. Brake discs and calipers on a vehicle that has seen consistent mixed driving should be inspected for wear ridges on the disc edges and any signs of seized caliper slider pins, which can manifest as uneven pad wear or a pulling sensation under braking. The 12V battery and the additional mild-hybrid system components should be assessed for state of health, as voltage drop testing can reveal early degradation, particularly if the vehicle has been subject to short urban journeys. Further mechanical checks should include a thorough visual inspection of the underbody for any corrosion, paying particular attention to the suspension arms, anti-roll bar links, and coil springs, as BMWs of this era can be susceptible to spring fatigue and front control arm bush wear. During the test drive, the buyer should listen for any clonks or knocks from the front suspension over uneven surfaces, monitor for any vibration through the steering wheel that could indicate balancing or driveline issues, and confirm smooth, decisive gear changes from the automatic transmission. The diesel particulate filter should be allowed to perform a regeneration run during the test drive, and the buyer should verify the timing chain and turbocharger operation by checking for any unintended whistling noises or rough idle. Finally, ensure that all time-sensitive fluids, including engine oil, brake fluid, coolant, and the AdBlue diesel exhaust treatment, have been changed in line with the manufacturer's calendar-based schedule rather than purely on mileage intervals.