Turbo Auxiliary Water Pump, OEM - E70 X5M, E71 X6M

The turbos on the S63 engine are cooled separately from the main engine cooling system. They have their own coolant pump, lines, expansion tank, and radiator. This is so coolant can be circulated even when the engine is off or low RPM.

This is an OEM turbo auxiliary water pump manufactured by the original supplier to BMW for this part, as well as many other pumps and components. As the OEM it meets all of BMW's original design, fitment, and performance requirements and is TUV approved. OEM parts are the best alternative to more expensive Original BMW parts because they are virtually identical without the inflated price tag. This part has a two year warranty.