R134a
The 2011 Volkswagen Jetta has a 5-speed manual.
The 2010 Volkswagen Jetta has a 5-speed manual.
The 2012 Volkswagen Jetta has a 5-speed manual.
The 2002 Volkswagen Jetta has a 5-speed manual.
The 2014 Volkswagen Jetta has a 5-speed manual.
The 2014 Volkswagen Jetta-Sportwagen has a 5-speed manual.
The 2013 Volkswagen Jetta-Sportwagen has a 5-speed manual.
The 2013 Volkswagen Jetta-Hybrid has a 7-speed automated manual.
OEM fluid is Pentosin Vw Automatic Transmission Fluid ATF1 and that is what I recommend you use.
No, not without modifications.
Yes, but it's not a fun swap.