2016 BMW M4 3.0L Petrol · YG66 TRV

The most recent MOT, dated 8 December 2025, was passed but carried several advisories – notably a minor oil leak, the presence of engine‑bay covers and under‑tray shielding that limit visual inspection, and a slightly damaged near‑side front tyre. Over the last six years the vehicle has alternated between passes and failures; the two failures in 2022 and early 2024 were driven by dangerous tyre condition and a major wiper fault, while the later passes have shown only non‑critical advisories. This pattern indicates that the major safety concerns have been addressed and the overall maintenance trajectory is now stabilising, though the recurring oil‑leak and limited access to key components suggest that vigilance is still required. At ten years old the car has logged 57 075 miles, an average of roughly 5 700 miles per annum – well below the typical usage for a performance model. Such low annual mileage often points to periods of limited use or prolonged storage, which can be as consequential as high mileage in terms of component ageing. The modest wear on the drivetrain is likely, but age‑related degradation of rubber, seals and metal remains a factor, especially for items that deteriorate with time rather than distance. When you inspect the vehicle, give particular attention to the source of the oil leak noted in three consecutive MOTs; look for fresh oil around the valve cover gasket, oil filter housing and the oil cooler lines, and verify that no oil is dripping onto the under‑tray or onto the exhaust. Because the engine covers and under‑tray are fitted, arrange for their removal so you can examine the suspension bushings, sub‑frame mounts, exhaust system and rear brake components for corrosion or cracked mounts. The brake discs were flagged for surface pitting on all four wheels in 2023 – a visual check for scoring, uneven wear or excessive rust is essential, and a test‑drive should reveal any brake shudder, pulsation or reduced pedal feel that would indicate that resurfacing or replacement may be imminent. The near‑side front wiper was recorded as ineffective in 2024; confirm that the wiper now clears the glass fully and that the motor and linkage operate smoothly, as a faulty wiper can compromise visibility in wet conditions. Given the vehicle’s age and low mileage, also scrutinise items that deteriorate with time. Examine the tyre sidewalls for cracking, dry rot or age‑related hardening – the DOT code will reveal the manufacture date, and any tyre older than six years should be considered for replacement regardless of tread depth. Check the 12 V battery for charge hold and electrolyte condition, and be aware that a battery left idle for long periods may need a refresh or replacement. Inspect all fluid reservoirs – engine oil, coolant, brake and steering fluids – for colour, level and signs of contamination; a full service interval change is advisable if the last documented change exceeds 24 months. Finally, look for any signs of chassis rust, especially around wheel arches, suspension mounting points and the under‑tray, and verify that the steering rack and tie‑rod ends move freely without play, as standing can promote corrosion and binding in these critical safety systems.