The faults I got were 00457 & 00256:
The part I needed was an A/C Pressure Switch (Part Number: 4H0959126B)
The install was super easy. Just remove the black plastic tray that sits over the top of the radiator and A/C condenser. This is the same tray/cover that is in between both headlights in the engine bay. Next, look down just behind the front grill on the driver side and you should see this:
At this point, just go in reverse order and install the new switch. Done. Enjoy have working A/C!