The manual transmission on a jetta does not have a traditional dipstick. the fill plug is located on the left side near the front. if the oil reaches the bottom of the filler … plug hole, the. How to add transmission fluid to a 2002 vw jetta - volkswagen 2002 jetta tdi question. search fixya how to add transmission fluid to a 2002 vw jetta. posted by anonymous on oct 13, 2013. (location depends on model and if you have an automatic vs. manual transmission) of the transmission drain pan.. Volkswagen jetta gli 2002, manual transmission gear oil by febi