Any takers as to what this noise means? I know auxiliary water pumps fail easily in the E70 50i but we had it replaced already under warranty about 20K miles ago - bad again? How bad to replace?


Noise is hard to hear in the video but best way I can describe is a cavitation from the pump or a bearing on the pump shaft that's spun in its housing. Why do you suppose it cuts in and out rather than running continuously?

Edit: New working link


https://youtu.be/NJIYjjIQOoc


Thanks in advance!




2012 X5 50i E70