So, replaced the belts and all three pulleys for both belts last weekend.

Today, literally 30 minutes ago, started getting a horrible whining sound from the engine compartment, whether sitting or driving.

Thought it could be one of three things:

1. One of the three pulleys is defective
2. Electric engine fan going bad
3. Water pump in first stages of death

Pulled it into the garage and popped the hood with the engine running. First thing I noticed is that the wine is coming from the passenger side of the engine. Not cool. Thinking the water pump.

Anyone else had loud whining from a dying water pump?

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2016 X5 SDrive 35i Sport
2009 X5 XDrive30 Sport acquired 10/21/16 "Brigette"
2005 530i Sport acquired 5/2014 (wife traded for a milktoast Honda)
1999 528i Sport (306k miles!!) acquired 8/2006 "Prescilla" (sold)
1997 528i acquired 8/2004, "Helga" parted out and gone
1992 735iL acquired 6/2003, "Wanda" sold