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7 Series (E23, E32, E38, E65, E66) General discussion and technical help for all year 7 series cars.

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Unread 08-09-2010, 01:07 PM   #1

Name: Laprostop
Title: United Newb
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Join Date: Aug 2007
Location: Lake Forest, CA
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Your Ride: 2001 740i & 2004 325iT
Angry 740i 2001 Noisy A/C

Hi Folks,

I have a 2001 740i (95K Mi) in great shape.

The only problem I have is that the a/c is noisy. The air is very cold, so no issue there, but the system is noisy when running -- a whirring/whining sound that seems to vary in volume. This sound goes away when I switch the a/c off or run the regular fan.

I'm not technical so I don't know if this is a compressor or condensor issue.

Any advice and any idea what this could cost to repair?

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Unread 09-03-2010, 01:42 AM   #2

Name: b57jetmech
Title: United Newb
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Join Date: Jun 2010
Location: Woodlands, Texas
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Your Ride: 1998 BMW 740i
try looking at the environmental filters under the hood, if they"re clogged the air has a hard time getting through. Luck
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