When started, and at idle, the a/c blows out air that is not chilled, even though my a/c settings for both sides are at 18 degrees. After driving it around for 5 mins or so, or getting up to highway speeds, cold air comes out and everything operates as usual. Everything functions as it should after those first few minutes, and the a/c will gladly pump out very cold air at the coldest settings.
I read in some posting that Actually, according to experts there is a valve in the compressor which controls the pressure of the gas being pumped in the system. As time goes by, there is a deterioration of this valve and the compressor is not able to pump the gas efficiently around the system quickly.
Normally, it should take about less than a minute before you feel cold air. Another symptom is during traffic jams or stationary periods; the air will start becoming warm as there is not enough pressure to push the gas around the system.
( Is the above statement True? Is this a common fault In E60?)
Can anyone verify?