w115 a/c compressor not working. help!

[NC240D76]

The a/c compressor on my 76 240d is not coming on and it is getting warm here.
I jumped the a/c clutch and it engages.
I charged the system and it is full although the pressure is a little low.
The line going back to the firewall gets very cold quickly.
The fuses and the relay on the passenger firewall are both working.
The blower switch works for the defrost and heat settings but the ac switch does not kick the blower up high like it did last summer.
I do seem to have continuity through the ac temp control switch.
The vacuum lines appear to be in the correct place.
I had the console out while replacing interior and carpet but everything went back where I thought I removed it from.
What am I missing? I do not see a pressure switch in the system, when I short the switch on the evaporator, the aux fan on the radiator comes on.
And want the heck is the red wire to the a/c temp control switch? It does not show up on any schematic I have seen.

I have searched but w115 a/c questions have been few and far between, it must be a good system for the most part (or everybody else gave up)
Thanks for the help.