The Coolant Reservoir for BMW 330e models from 2016 to 2018 is an essential component located within the engine bay. This OEM part, recognized by the part number 8E13, plays a crucial role in maintaining the engine's cooling system by housing coolant, enabling the system to regulate temperatures effectively. It interfaces directly with the engine, radiator, and cooling hoses to ensure optimal heat dissipation and prevent overheating.
Common issues that may necessitate replacement include cracks, leaks, or deterioration from thermal stress. Keeping the coolant reservoir in good condition is vital for engine longevity. Other terms used for this part include coolant tank and coolant bottle. It is an authentic manufacturer part sourced directly from salvage vehicles, ensuring quality and reliability.