Fill and vent the coolant circuit
WARNING: This page is about a different car, the 2025 BMW M4, 2024 BMW M4, 2023 BMW M4, 2022 BMW M4, and 2021 BMW M4. However, it is still accessible from the selected car via links, so may be relevant.
Fill and vent the high-temperature coolant circuit
NOTE:
TECHNICAL INFORMATION
It is mandatory to fill the cooling system before bleeding.
Fill both the circuits for high and low-temperature coolant circuits.
It is mandatory to fill the cooling system before bleeding.
Fill both the circuits for high and low-temperature coolant circuits.