Shop OEM BMW Part # 17138621092 (17-13-8-621-092, 17137552546, 17137647290, 17138630170). Engine Coolant Reservoir. 2.0 LITER TURBO, MAIN. 3.0 LITER. 3.0 LITER GAS NON TURBO. 3.0 LITER TURBO DIESEL. 3.0 LITER TURBO GAS. 3.0 LITER

Engine Coolant Reservoir. Expansion tank.
A container that holds Engine Coolant.

Engine Coolant Reservoir

Fits X5, X6

2.0 LITER TURBO, MAIN. 3.0 LITER. 3.0 LITER GAS NON TURBO. 3.0 LITER TURBO DIESEL. 3.0 LITER TURBO GAS. 3.0 LITER, MAIN. 4.4 LITER TURBO, MAIN, 2010. 4.4 LITER TURBO, MAIN, 2011-13. 4.8 LITER. MAIN. W/M MODEL. W/M MODEL, MAIN. W/O M MODEL. W/O M MODEL, MAIN. X5. X5; Primary. X6. X6; w/o Hybrid.
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.