Possibly (And probably) the coolant gas has leaked out due to a tiny hole somewhere in the system. You need to get it checked properly before refilling the coolant.
Fuse 19
The 1991 VW Jetta low pressure port can be found on the air conditioning compressor. There are two ports, the low pressure port will be labeled as such.
The 2002 VW Jetta air conditioning relay switch can be found in the fuse box. The air conditioning relay switch will be in the third column, second from the top.
Your 2001 VW Jetta low pressure port can be found on the left side of the air conditioning compressor. The low pressure port is for recharging the air conditioning.
To properly charge the air conditioner you need gauges and a refrigeraant recovery system.
how to change a 2009 VW Jetta Air Filter and location
The 2007 VW Jetta air conditioning and heater fan fuse will be a 20 amp fuse. The fuse can be found inside of the fuse box.
this happened to my Jetta today calling Gene's Foreign Cars Broomall PA to find out tomorrow they will tell me if there is something I can do otherwise I will add it to the stuff I need for car...
The 1997 VW Jetta air conditioning condenser drain hose can be found on the bottom of the air conditioner compressor. The drain hose will direct condensation to the bottom of the engine compartment.
on the left durr
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in the UK the top of the range vw cars come with air conditioning as standard, but they have started installing air conditiong as standard on all of there cars