Quote:
Originally Posted by hsahai
First thing you want to check is if your compressor is ok. Try jumping switch and see if compressor turn on-- just for few seconds. Compressor will kick in even if you have low freon or no freon. Once you know that compressor is ok then follow the direction as given by Arthur.
However, one big question is - Was ac working before and how long ago.? Are you sure there is no leak in the system. If there is leak in the system them ac will not hold the freon. To check the leak do it before you charge the ac with freon. Hook up vac line and see if vacum reading is persistanct for 24 hr. Arthur can put more chime on this.
Sahai
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To answer your question, was ac working before and how long ago: I don't know.
I had a 95 E320 that I purchased and sold to my 17 year old step-daughter. Arthur helped me big time diagnosing the coil problem (I missed a step in the diagnosis process). But that car was totalled out and for a replacement I found this 94 E420. The ac seemed to blow cold but it was a 52 degreee day when I test drove it. Carfax was good; documentation not so much. But it drove fine and didn't have a CEL on (does now), using built-in diagnostic led blinked 26 times.
Thought the CEL was due to the MAF(MAS?) which was dangling loosely behind driver side air intake. Putting this back in did not change the engine behavior (fine). CEL still there.