The blower motors front and rear both work. I replaced the final stage resistor while troubleshooting on why it won't go to sleep. Still doesn't. I'm down to repairing or replacing the GM3.
A/C will cool faster if the fan kicked on as soon as the A/C is switch on. I'm starting to wonder if the previous owner didn't know it was not working properly He had the compressor and A/C system serviced. I have not connected my R134 gauges to it yet. I don't want to disturb the valve stems. Good to know max cooling is not super useful. I wait until it starts cooling before hitting the button. I'll use auto cooling instead.

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'06 X5 3.0i - bought @143,123 miles (12/26/20)