Where is the auxiliary pump located on an '03 X5 with 3.0 engine?

[jpilk99]

Hi folks,

Can anyone confirm where this little sucker is located on my 03 X5 with the 3.0 six cylinder?

Realoem makes it look like it's at the lower front of the engine; #17 in this image: https://www.realoem.com/bmw/enUS/sho...diagId=64_1116

A Pelican Parts video makes it look like is under the motor, on the passenger side: https://www.youtube.com/watch?v=o-BpUzAemyQ

Someone on either this forum or other said theirs was right next to/below their expansion tank --- and unless my eyes are failing me, I don't see one hangin' around there.

Any help is HUGELY appreciated. Having issues bleeding the system and the other day heard a nasty noise (with the engine off, heat on high, fan on low): https://www.youtube.com/watch?v=arlkpPqR8KQ . Oddly, it isn't making that noise today, but, ...I am guessing the impeller blades or the bearing/shaft they spin on is failing so complete auxiliary pump failure is looming. NOTE: When that loud noise was happening, there was no flow of coolant (with the expansion tank cap off, bleed loose, and no flow of coolant going down into tank).

Thanks folks.