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Old 03-22-2012, 12:23 PM
steveawitt steveawitt is offline
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Location: ohio
Join Date: Mar 2012
Posts: 8
Mein Auto: 1992 525i
trouble shooting AC Compressor

I got a 1992 525i with a 118k on it.
My first BMW.
Air doesn't work? Blows hot air.
compressor engages.
Aux. Fan engages.
Amb. Temp /sensor works.
Air flow dial on the dash set to blue.
Low side charged to max.
high side will only go to about 50psi
both tubes coming out of compressor are hot.

Can anyone confirm my thinking that the compressor is shot?? (not compressing)
I don't want to hear its the expansion valve!!
Pleas Help............
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Old 06-22-2012, 05:41 AM
apomerans apomerans is offline
Registered User
Location: Dallas, tx
Join Date: Jan 2012
Posts: 16
Mein Auto: 2005 745i
Ever find the problem?

I'm having EXACTLY same issue in 05 745i. If you have fixed it - please let me know..

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Old 07-12-2016, 07:58 PM
Richesloo Richesloo is offline
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Location: New York City
Join Date: Jan 2014
Posts: 105
Mein Auto: BMW 528i
Got to bring it to a shop where they pressurize test it and see if it's holding freon. Also maybe clutch coil is bad. In my case my compressor hold freon but the ground wire had torn off now it blows warm air.

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