A container that holds engine coolant. A coolant Reservoir for the turbocharger cooling system. Auxiliary. Engine Coolant. Expansion. Reserve. Turbocharger Coolant.
Engine Coolant ReservoirTurbocharger Coolant Reservoir
2.0 LITER. 2.0 LITER TURBO, 2.0 PHEV. 2.0 LITER, MAIN. 2022-24. 2022-24, MAIN. 3.0 LITER. 3.0 LITER TURBO. 3.0 LITER, MAIN. 330e xDrive; #2. 330e; #2. 330i xDrive; #2. 330i; #2. 430i Gran Coupe; Auxiliary. 430i xDrive Gran Coupe; Auxiliary. 430i xDrive; Auxiliary Tank. 430i; Auxiliary Tank. M340i. M340i xDrive. M440i Gran Coupe; Auxiliary. M440i xDrive Gran Coupe; Auxiliary. M440i xDrive; Auxiliary Tank. M440i; Auxiliary Tank. Sedan, 2.0 LITER TURBO, 2.0 PHEV. W/O M4. Z4.
Engine Coolant Expansion Tank - Repair or Replace
A failed expansion tank can cause the cooling system in your to leak antifreeze, or it can cause your engine to overheat. If you're losing coolant, contact our service department to avoid engine damage.