Best Fuel filter for Volkswagen Jetta

The little ridges that the clips hold on too were visibly larger and more square on the fram one than the off-brand. Do yourself a favor and get a good brand and have peace mind that it wont blow off when you hit a bump in the road

Try changing out the fuel filter, sounds like you have a lot of water in it. Wen the filter fills up with water, the engine pulls gas off the top (gas is lighter than water) and regularly gets a slug of water along with it which can cause a misfire at startup and on the road too.