Quote:
Originally Posted by tr125
That’s what the previous owner told me. but anyway I just came back from a shop, the mechanic charged me $90 for a inspection with recharging the system, but compressor still not engage. He told me that may be there are something wrong with the controls, but did not say anything about the Aux fan. He told me to make an appointment to drop of the truck in order to do further inspections and not able to do any repair estimate yet. So I just wait until this Sat and hopefully I should know what is wrong.
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How can a mechanic charge an ac system if the compressor is not engaging? The system needs to be running in order for the tech to observe the low side and high side pressure
If he's just an Indy shop with no diagnostic software for a BMW better off taking the X to a BMW specialist or dealer who has the software to diagnosis the problem. With the correct software, you can command the DME to engage the compressor, turn on the aux fan, see system pressure, etc, etc, etc.
Otherwise he just a shade tree mechanic living in an analog world dealing with digital problems.