SirScott

Anyone know of part #s or locations of relays relevant to AC control? My aux. fan doesn't kick on, nor does my compressor, but I was able to jump both of them so I know the parts work. I replaced temp sensors on the block and in the lower radiator, but still no luck. I assume there's gotta be a relay coming from the climate control to the fan and compressor. Anyone have any idea where to look?

Thanks!

S.

A4bomber

Are you sure you are not just low of refrigerant? There are "safety" switches in the system that will shut off the compressor and the a/c system if the refrigerant is too low. They are usually located in the high pressure line coming from the compressor to the evaporator core. Try jumping that switch and see if the compressor comes on. If it does, the refrigerant is low.

SirScott

Yeah, i've got a full charge

ChooChooNongNongHead

I replaced the amb.temp sensor and now my fan turns on but still no A/C, I'll need to VAG it again.

SirScott

Will do; thanks.

A4tquattro

Noticed a little trick if you unplug the pressure sensor and stick a mini 10amp fuse on one side of it where its hot and grnd you can run the a/c and fan and if you stick the fuse on the other side you can run the aux fan without the a/c. I guess if you didn't want the a/c on and you wanted some extra cooling you could do that lil trick if you're all modded etc and didn't want the a/c on. Not sure which wires you need to use I can check later if anyone is interested or you can take a voltage tester and figure it out.