A container that holds engine Coolant. A Coolant Reservoir for the turbocharger Cooling system. Engine. Expansion. Turbocharger.
Engine Coolant Reservoir
Fits 530i, 540i, 750i, 750i xDrive, M550i xDrive, M850i xDrive, M850i xDrive Gran Coupe, X5, X6, X7
2017-19, OUTER RADIATOR. 2020-23, OUTER RADIATOR. 4.4 LITER TWIN TURBO, OUTER RADIATOR, 2019-22. 4.4 LITER, AUXILIARY. 4.4 LITER, AUXILIARY, w/o M8. 750i xDrive. 750i, 750ix; Secondary. M50I,M60I, PRIMARY, outer radiator. M550i xDrive; Auxiliary. M550i xDrive; Inner. M850i xDrive Gran Coupe. M850i xDrive; Auxiliary Tank. W/O M MODEL, OUTER RADIATOR, 2019-23. X5; Auxiliary; M50i. X5; Auxiliary; xDrive50i. X6; Auxiliary; M50i. X7; Auxiliary.
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.