2014 BMW M4 3.0L Petrol · SY09 SAM

A history of intermittent braking and tyre-related failures defines the mechanical profile of this vehicle, though the recent testing trend shows a period of passing without recorded defects. The most recent test on 21 May 2026 resulted in a pass, but included an advisory regarding the presence of undertrays and engine covers. This follows a clean result in 2025 and 2024, which stands in contrast to a significant failure in April 2024 where the front service brake was recorded as excessively fluctuating. This specific failure indicates a previous issue with brake disc thickness variation or judder, which is a critical component to monitor. The recorded mileage of 79,727 miles over a twelve-year period represents an average annual accumulation of approximately 6,644 miles. This usage pattern is relatively low for a vehicle of this age, suggesting it has not been subjected to high-frequency long-distance motoring. Mechanically, this level of usage typically means that while drivetrain components may have lower cumulative wear, other rubber-based components and seals may be more susceptible to age-related degradation rather than mileage-related fatigue. There are no significant gaps in the testing history, suggesting the vehicle has been in regular, albeit light, use. Prospective buyers should pay close attention to the braking system during a test drive to ensure the 2024 failure for brake fluctuation has been fully rectified. Listen for any pulsating sensation through the brake pedal or visible vibration in the steering wheel when applying the brakes at various speeds, which could indicate warped discs or uneven pad wear. Given the advisory on the most recent test regarding undertrays and engine covers, it is advisable to inspect the underside of the vehicle for any signs of fluid weeping or oil misting that might be obscured by these protective components. The tyre history also warrants scrutiny, specifically the 2021 failure involving exposed cords and the 2022 advisory for a nail in the nearside rear tyre. While these are older entries, they highlight the importance of checking the current condition of all four tyres for uneven wear patterns, sidewall bulges, or embedded objects. During the test drive, pay attention to any rhythmic thumping or steering pull that could indicate tyre irregularities or issues with wheel balancing and alignment, ensuring the vehicle tracks straight under both acceleration and braking.