I'm selling my Passat tdi I bought in 2000 with about 50,000 miles on it, it has about 325k on it now.
It needs a new clutch, it has the original still in it. engine runs great, fires right up, oil consumption is about 1qt every 5 to 6 thousands miles.
Here are some of the upgrades I've done on...
Here's what i used on my B4, I don't know if you have the same amount of room on the Jetta:
Here's the link to were this came up years ago: