2021 BMW 320I M Sport Auto 2.0L Petrol · SH71 FSV

The latest MOT test on 12 December 2025 resulted in a pass, but with advisories for both the offside front and offside rear tyres being worn close to the legal limit on their outer edges. This follows a failed test on 6 December 2024 due to a dangerous bulge on the offside front tyre and an underinflated nearside rear tyre, which were subsequently rectified. The trend suggests tyre condition has been a recurring concern, with the latest advisories indicating uneven wear that may progress to illegal tread depth if unaddressed. While the vehicle passed its most recent test, the pattern of tyre-related defects points to either alignment issues, aggressive driving habits, or deferred maintenance rather than a stable or improving maintenance trend. At 89,959 miles over five years, this 320i has accumulated an average of nearly 18,000 miles annually, which is high for its age and indicates substantial usage. Such mileage accelerates wear on consumables like tyres, brake pads, discs, and suspension components, while also placing greater demand on the drivetrain and fluids. The rapid accumulation suggests the car has likely seen consistent, possibly spirited use, which may have contributed to the tyre wear and potential stress on other mechanical parts. Buyers should anticipate that higher-mileage components such as suspension bushes, shock absorbers, and brake hardware may be nearing the end of their service life. Given the recurring tyre advisories, a thorough inspection of all four tyres is essential. Check for uneven tread wear, particularly on the outer edges, which could signal incorrect wheel alignment or worn suspension components such as bushes or coil springs. During a test drive, listen for clunks or knocks over rough surfaces, which may indicate worn suspension mounts or shock absorbers, and assess whether the car pulls to one side, suggesting alignment or braking issues. The previous bulge defect also warrants a close examination of the wheel rims for damage, as impact-related tyre failures often stem from pothole strikes. Additionally, verify the tyre ages—even if tread depth is legal, tyres over five years old may exhibit sidewall cracking or hardening, compromising grip and safety. Finally, consider the broader implications of high mileage and the need for time-based maintenance. Inspect the brake discs and pads for excessive wear or scoring, and check for fluid leaks around the engine bay, gearbox, and differential, as higher mileage increases the likelihood of seal degradation. The 12V battery should also be tested, as frequent short journeys or high electrical demand can reduce its lifespan. Review the service history to confirm that oil changes, transmission fluid, and coolant have been replaced at the manufacturer’s recommended intervals, as calendar-based fluid degradation can be just as critical as mileage-based wear. A pre-purchase inspection by a qualified technician is strongly advised to assess the true condition of the suspension, drivetrain, and other high-wear components.