The passenger side A/C blowing warm air?

Tiny
BHAMDOC1973
  • MEMBER
  • 2006 BMW 325
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 165,000 MILES
The driver's side is okay, passenger is warm. If you drive it gets a minor improvement on both sides, am suspecting a weak compressor, checked freon level and its full, removed some and then tried again I can't add a lot, its full. Fan works, these have non electric fans, I also see a bit of a wobble while the compressor is running, also it does not cycle on and off, it's on always so it's fine, and like I said only the driver side is cold, but it's not where it should be.
Friday, August 30th, 2024 AT 3:03 PM

7 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,643 POSTS
I don't think this compressor has a clutch; it is internally valved. What are the high and low side pressures? This video will help you:

https://youtu.be/4EqdrBVb0sY?si=FTo0fDvLCYSkEneT

Please go over this guide and get back to us.
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Saturday, August 31st, 2024 AT 4:41 PM
Tiny
BHAMDOC1973
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Looks like it has a clutch, or something cause the outside clutch kicks on when you turn the A/C on. Gauges went bad and I am relying on two individual ones which both show the level is full. I am suspecting the heater control valve.
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Saturday, August 31st, 2024 AT 4:56 PM
Tiny
KEN L
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Yep, it looks like a clutch, but it is not, this system has a refrigerant compensation valve. Does it show the high side pressure? Check out the images (below).
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Sunday, September 1st, 2024 AT 9:40 AM
Tiny
BHAMDOC1973
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My gauge not working.
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Sunday, September 1st, 2024 AT 9:50 AM
Tiny
KEN L
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We need to get a working gauge, or we will be guessing.
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Sunday, September 1st, 2024 AT 10:54 AM
Tiny
BHAMDOC1973
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I'll see if I can find one.
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Friday, September 6th, 2024 AT 1:32 PM
Tiny
KEN L
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Okay, let me know.
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Friday, September 6th, 2024 AT 5:53 PM

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