A/C problem

Tiny
JOELM123
  • MEMBER
  • 2004 BMW M3
  • 3.2L
  • 6 CYL
  • RWD
  • MANUAL
  • 145,000 MILES
My A/C has developed two issues. First, It only cools on the drivers side vents. Second, It has a hissing noise coming from the vents as well.
Thursday, June 22nd, 2017 AT 8:31 PM

1 Reply

Tiny
CARADIODOC
  • MECHANIC
  • 33,873 POSTS
Sorry that I'm not familiar with your model, but given your second dandy observation of the hissing sound, I'd suspect your system uses vacuum-operated actuators and one of them is leaking or its hose is disconnected. Search the source of that sound first, and hope solving that solves the vent issue.
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Friday, June 23rd, 2017 AT 3:03 PM

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