Two problems related to water pump have been reported for the 2009 BMW 750. The most recently reported issues are listed below.
My electric auxillary water pump is bad and heats up my circuit board. . . . Also the timing bolts on the camshaft are bad.
Electric water pump, I took my BMW to the dealership in which they told me that they needed to change the water pump, they have a recall for the 2011 and above but not for the 2009 and my vehicle is having the same exact problems as the recall states.