2021 BMW M235I Xdrive Auto 2.0L Petrol · AV17 CON

The most recent MOT result from June 2026 was a pass, but this followed a significant failure involving a dangerous defect on the nearside rear tyre and a major defect on the offside rear tyre. The maintenance trend appears somewhat unstable, moving from a clean pass in 2025 to a failed test in 2026 due to structural tyre failures and worn rear brake pads. While the subsequent pass indicates that these critical safety issues were addressed, the sudden appearance of these defects suggests that the vehicle's consumables were not being monitored closely prior to the test. With 30,524 miles recorded over five years, the vehicle averages approximately 6,105 miles per year. This is relatively low mileage for a performance-oriented BMW, suggesting it has been used for occasional or short-distance trips rather than heavy motorway commuting. While this lower mileage is generally positive for the longevity of the engine and drivetrain, it carries specific risks. Low-usage vehicles are more prone to tyre perishing due to age-related rubber degradation and can experience brake disc corrosion or binding calipers if the vehicle has spent extended periods stationary. During your inspection and test drive, you must confirm that the rear tyres and brake pads identified in the 2026 failure were actually replaced with new, high-quality units. Pay close attention to the rear end of the car for any unusual noises, such as clunking from the suspension bushes or humming from the tyres, which could indicate poor installation or remaining structural damage. Test the brakes thoroughly to ensure there is no shuddering or pulsation, which would suggest warped discs or uneven pad application. You should also inspect the front tyres for the cracking and perishing noted in the 2024 advisory; even if the tread depth seems adequate, look for fine cracks in the sidewalls which indicate the rubber is becoming brittle. Given the low annual mileage, it is essential to verify that the service history includes annual fluid changes. Brake fluid and engine oil should be replaced based on time intervals to prevent degradation, regardless of the low distance covered. Check the condition of the 12V battery, as infrequent driving can lead to voltage drops and electronic faults. Finally, inspect the underside of the vehicle for any signs of excessive corrosion on the exhaust system or suspension components, and ensure the xDrive all-wheel-drive system engages smoothly without any drivetrain hesitation or mechanical noise during low-speed manoeuvres.