2021 BMW M4 Competition M Xdrive Auto 3.0L Petrol · LD71 DZP

The BMW M4 Competition presents a clean bill of health on paper. The most recent MOT on 26th November 2025 at 8,147 miles was a clear pass with zero defects or advisories. The previous test on 23rd September 2024 at 5,255 miles was equally unblemished. This is a stable, improving trend in terms of recorded mechanical condition, with no recurring faults or emerging wear patterns flagged by the tester. The mileage profile is notably low for a 2021 vehicle. Covering just 2,892 miles over the thirteen-month gap between the two tests, and sitting at 8,147 miles after five years, the annual average is roughly 1,629 miles. Such minimal accumulation suggests prolonged periods of standing, which carries its own risks. Extended dormancy can lead to flat-spotted tyres, brake disc surface corrosion, and degraded fluid. The lack of recent mileage data between late November 2025 and today, 17th June 2026, is a minor gap worth noting. A vehicle sitting unused for over six months demands closer scrutiny of consumables and fluids. Despite the clean MOT history, a physical inspection is essential for a high-performance xDrive model like this. The rear brakes and parking brake mechanism warrant a thorough check, as M4s are prone to binding calipers when left standing. Inspect the tyre sidewalls for perishing and the tread for uneven wear, given the low annual mileage. The suspension bushes, coil springs, and adaptive dampers should be examined for deterioration from age rather than use. Underneath, check the subframes and jacking points for any signs of surface corrosion, particularly if the car has been stored in a damp environment. Fluid condition is critical. A five-year-old M4 with minimal use likely has old engine oil, degraded brake fluid, and possibly contaminated coolant. Request evidence of a recent fluid service, particularly the brake fluid change interval, which is typically two years regardless of mileage. The exhaust system and particulate filters should be assessed for efficiency, as short trips and standing can cause moisture build-up and DPF issues. A pre-purchase inspection by an independent BMW specialist is strongly advised to verify the structural integrity and mechanical health beyond what the MOT records show.