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      07-05-2017, 07:27 PM   #1
toicy4ya
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Pulley Squeaking when Turning On the A/C

Sup Guys,

I own a 2010 E70 X5 4.8i. Last couple of weeks i have been getting a loud squeaking noise coming from the pulley/belts area every time i turn on the A/C when i turn on the car. The squeaking appears to stop once i turn off the A/C or after about 10 minutes of driving. Anyone have any idea what it could be? I tried using held conditioner but it didn't seem to do anything.

Any help would be greatly appreciated.
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      07-05-2017, 11:07 PM   #2
askjeeves
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Sounds like you need a new belt. As they wear and stretch they squeal.
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      07-06-2017, 06:03 AM   #3
Lunker325
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Could also be an idler or tensioner pulley.
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      07-08-2017, 10:05 PM   #4
toicy4ya
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Thanks for the feedback. Just to confirm, which parts would i need to purchase below? If i am not mistaken it is one and two but where is the idler pulley?

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      07-09-2017, 06:58 AM   #5
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The idler(called deflection here) looks to be #6.
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      07-14-2017, 03:22 PM   #6
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Just recently went through something similar on my 11 35i, I had to replace the tensioner pulley. While doing so I replaced the serpentine (driveshaft) belt and the other pulleys done there. No issue ever since I made the repairmen in those areas, hope this helps!
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