Whining sound from passanger side of engine
#1
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I have had this low pitched whining sound coming from the right side of the engine bay for quite some time now. It happens on and off and usually at speeds up to 40 MPH. At first I assumed it relates to the tranny since it is RPM dependent, but it never happens with the AC off. Since during the winter months I mainly kept the AC off I did not hear that sound. On extended road trips during last summer and the AC always on automatic, the sound did not appear for days and then suddenly it was back
No error codes show up and both the AC and the shifting seem to work flawlessly.
No error codes show up and both the AC and the shifting seem to work flawlessly.
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My Ride: 2008 BMW 528XI
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Is it possible what you are hearing is the whining of thepower steering? possibly low on fluid? I recently had that and my fluid was low. Filled and went away.
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Mines the a/c compressor. You can turn it off and it goes away. When temps are around 80 or above, you don't hear it. Only when it's 75 or below. Weird!
#6
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My Ride: 2007 525i
#8
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Yesterday, for the first time this year, did the outside temps rise into the mid 80's and no whine. Before, we had temps in the 70's and I got on and off whining.
I'll keep watching and possibly get the freon level checked.
I'll keep watching and possibly get the freon level checked.
#9
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I have heard variable displacement compressors on other makes whine when the compressor is at lower displacement operation in cold weather.
#10
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My Ride: 2008 535i2008 535i Monaco Blue
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iPod+Aux, Bamboo Anthracite Wood Trim