I had this horrible noise I've been looking for months. At first it sounded like the pump was struggling and was very weak but noticeable. Then it sounded more like a screech (so I thought it was a pulley so I replaced the idler pulleys and compressor pulley) then it got louder and went from high to low and finally back up and very loud. . Loud enough to finally hear where it's coming from, and it was that fan. I installed this fan on my 2006 Mini Cooper S and it spins great. The noise is gone and works as it should. I was afraid this fan would cost over $100 but it was a good deal and it was a complete build while many others were only offering a fan for the same price. If something happens to the fan in the next year or so I'll update my review, but so far so good!