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'97 740il - Noises from HVAC system


nsohn
12-05-2002, 10:55 AM
There's a thumping/pulsing type of background noise that seems to come from the HVAC system - noise goes away when climate control is turned off.

Does anyone have any clues or experience as to what may be causing this?

Thank you.

Ned
iexcell2
01-24-2003, 06:00 PM
Have you found the source of this noise yet? Mine makes a similar noise, it kind of sounds like there is water in the dash.

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