E46Fanatics - View Single Post - A/C diagnostics, lots of info w/pics
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Old 06-20-2012, 12:39 PM   #13
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Join Date: Dec 2010
Location: MD, USA
Posts: 1,489
My Ride: 01 330CI 6MT ZSP EU3
Ok, some updates. Due to manual tranny swap I postponed the A/C stuff and now I am coming back to it. I decided to do full A/C overhaul and started from disassembling the A/C system and replacing the expansion valve:


After this I also replaced condenser (since I was replacing radiator anyway and the condenser was a suspect #3 after the expansion valve and pressure sensor). I used an aftermarket condenser (TYC 4994) and I bought it for less than $90 from rockauto.com. Fits perfectly, btw.

Now I've removed the compressor since I want to drain oil from it and replace by new one:

I'll clean it, detach the hoses, drain and refill with PAG 46 oil.
All hoses will be flushed using the A/C flush kit. I'll also replace both schrader valves (high and low pressure). All O-rings will be replaced too.
Next in the list is replacement of dryer and assembling everything back. Vacuum pump is ready to evacuate and re-charge the A/C system, stay tuned.

Last edited by Nervous; 06-20-2012 at 12:42 PM.
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