2015 BMW M4 3.0L Petrol · TO04 TLP

The most recent MOT on 8 May 2026 was passed, although an advisory was issued for corrosion of the off‑side front coil spring. Over the past six years the record shows a mixture of minor advisory items and two failures – the 2022‑09‑29 failure for an excessively worn off‑side front suspension arm ball‑joint and the 2024‑04‑05 failure for front tyre tread at the legal limit and an insecure registration plate. Since the 2022 major suspension failure, the vehicle has passed subsequent tests, albeit with recurring front‑end suspension advisories and tyre wear notices, indicating that the immediate safety condition is currently acceptable but that the front suspension and tyre wear are areas of ongoing concern. At 61,053 mi the M4 averages roughly 5,500 mi per year, well below the typical usage for a performance coupé of its age. The low annual mileage suggests relatively light duty or periods of prolonged storage, which can be beneficial for wear‑related components such as the engine, transmission and clutch. However, limited use also means that age‑related degradation – rubber hardening, fluid oxidation and corrosion – may be more pronounced than mileage‑driven wear, and any components that have been idle for extended periods should be examined for signs of perishing. Prospective buyers should give particular attention to the front suspension assembly. Inspect the off‑side coil spring for rust, pitting or loss of structural integrity and verify that the lower arm ball‑joint and its dust cover are free of excessive play, corrosion or cracked bushings; any clunk or knock when applying steering input or over bumps would indicate remaining wear. The tyre condition must be measured – both front tyres were flagged as close to the legal tread limit in the last test, and the rear tyres previously showed edge wear – so a fresh tread depth check, sidewall inspection for cracking or dry rot, and confirmation that the tyre pressures are correct are essential. Verify that the front registration plate is securely mounted, and confirm that the brake‑pad service light is not indicating imminent pad replacement; a brake pedal that shudders or a pulsating feel at higher speeds would suggest disc or pad issues that may have been deferred. Given the vehicle’s age, a thorough age‑related inspection is advisable irrespective of mileage. Examine the 12 V battery for sulphation and verify its cranking performance, as batteries left idle for long periods often lose capacity. Check all coolant, engine oil and brake‑fluid reservoirs for colour, level and signs of moisture ingress, and consider a fluid change if service stamps are absent for the past 24 months. Inspect the suspension bushings, rubber hoses and the exhaust system for cracking, brittleness or corrosion, especially around the front sub‑frame where the coil‑spring advisory was noted. A comprehensive test drive should include listening for any unusual noises from the steering rack, monitoring for vibration through the steering wheel, and ensuring smooth gear changes and stable braking performance before committing to purchase.