There has been no priming pump since the 1986 model year. I would just pour the Diesel Purge into your new filter and run the rest as instructed. You may need 2 cans because most of the first can will go into the filter.
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2004 VW Jetta TDI (manual)
Past MB's: '96 E300D, '83 240D, '82 300D, '87 300D, '87 420SEL
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