AC Fault - AC Compressor Not Engaging - Help Please

[Priezti]

if the air pressure switch needs changing is it a case of having to drain the a/c or does it have a valve etc so just replace as normal? anybody know ?

 

[hugosantos]

Hey guys I need help . my air conditioner does nothing, I have search here in this forum and other to get some tips and here's where I am at the moment.

Issue - Air conditioner does nothing no air nothing...
the climatronic looks to be fine , I can even hear the relays switching when pressing some buttons, and the fuses also are fine...
My blower is not stuck, I removed it and cleaned it ( it was fine just dusty) ... There is voltage reaching the blower but I do not know if the reason that It does not turn if its the clutch that a lot of people talk about ...
what can I do next ? I even done the test with Vag com but I do not understand most of it...

But here is the fault that appears on the Vag com :
18049- please check DTC MEMORY of A/C Controller
P1641-000
Freeze Frame:
RPM: 0/min
Torque: 118.0Nm
Speed: 0.0 km/h
Load: 0.0%
Voltage: 12.31v
Bin. Bits: 00001100
temperature :18.9Celcium
no units : 144.0


I have other faults like the P0672 Cylinder 1,2,4 glow plug circuit fault but will deal with that next

can you guys help?

 

[hugosantos]

Just Tested the blower today and it works Fine ( I plugged it in a 12v power supplier and it spined fine)
On the car there is also power reaching the plug ...
On the car plug that goes in to the blower there is 4 wire ( two cables are power and the other two I guess are the controll to activate it)
where do they go? im going to remove the climat control again and see if the cable go to the climatronic or not ( and then Ill check the continuity of the cables to see if they do reach)
any other advice?