A/C Compressor Clutch Coil (MK4)
If your A/C system has stopped working, check the resistance of your coil on the clutch. If it is an open circuit then the coil requires replacement, If the coil is open, then also check operation of coolant fans. Both fans should run on low speed with the A/C turned on. If they don't, repair or replace the fans as required to restore operation otherwise the coil will burn out again.