Originally Posted by JS82
According to BMW TIS: 18ft lbs + 90 degrees for the belt tensioner
BMW TIS and Bentley Manual: (Ina) Idler pulley that is attached to the alternator 59ft lbs.
Check the pictures I posted on previous page.
Got it thanks, so we are assuming the the idler pulley to be the same as that on the alternator since its not specified right? It's a fair assumption I think, thanks ! Will report back on how it all went and whether it resolves the whistle noise, which I am hoping on .