E46Fanatics - View Single Post - A/C diagnostics, lots of info w/pics
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Old 10-27-2011, 12:39 PM   #12
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Join Date: Dec 2010
Location: MD, USA
Posts: 1,489
My Ride: 01 330CI 6MT ZSP EU3
Thanks, shall36, that what I thought as well. I think, condenser may be a suspect too, but I don't see how to prove/ disprove this. The high side charging inlet valve is located BEFORE the condenser and the low side one is AFTER the expansion valve.... Surprisingly, the AC is ice cold once compressor engages.... Ah! Here is an idea: I replace the pressure sensor (located between condenser and expansion valve) first and will compare its value vs the pressures at high side charging inlet. At this point, there is a difference in about 5 bar between them, but I can't trust the pressure sensor at the moment. If I replace it and there is still a big difference in values - then it can be a condenser as well.
If I am going to replace a condenser, I'll anyway replace the dryer and the expansion valve. But if the issue is not in condenser, I'd better replace just the dryer and the expansion valve only.
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