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Originally Posted by Joe-
It doesn't sound like the water pump, but again it's hard to say, it really sounds like a pulley from your video but again, it's hard to tell since we aren't in front of the car listening in certain areas.
You should still watch your engine temps, I've heard of water pumps failing pretty randomly. But in this case I don't think it's your water pump and
As the pulley spins the faster it spins IE engine rotations it will in a sense "Whine" up to where you don't hear it.
Another thing that comes to mind is the alternator, on my e46 my alternator is making that noise, and has been for the last month and is now showing the battery warning light (I think failing bearing on the alternator is my issue), I've been putting it off since I don't drive the car that often.
Check the Pulleys, Belt, and check the alternator make sure it's throwing the correct voltage, not sure what the correct voltage on e9x is suppose to throw on an e46 was 14v
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Quote:
Originally Posted by Joe-
On a side note I noticed you are also in Greenwich, are you under warranty still? Hope you don't service it with Pace, those guys are really dumb.
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Unfortunately not still under warranty but I may take it to the dealer and have them diagnose this... Monday i'm having my injector coded in anyway at a shop so i'll see what they think while i'm there.
Pace/Greenwich BMW is terrible... When I was under warranty I got my car back with gum on the pedals, a broken cowl, and they scratched the shit out of my cold air intake piping. On top of that they refused to fix my squeaking brakes until I wound up out of warranty and I had to replace them out of pocket... Definitely not a dealership I plan on dealing with again. If I decide to have the dealer Diagnose and fix the issue i'll most likely be going to Westchester BMW.