I had a 2009 Wolfsburg Jetta 2.0t, assembled in Mexico I believe, that was a complete maintenance nightmare. I got out of it before the timing belt needed to be replaced and purchased a Toyota instead.
My 2011 Jetta was built in Hamburg, according to the VIN plate.
Yes, VWs made outside of Germany are basically junk.
As was my German-built Corrado in the 90s.
Of course, is that stopping me from buying another one this year? Nope, it just took me 15 years ago to get over it.