I use the Motive Power Bleeder and I would say that's a much more reliable way to bleed your brakes. Check out the "EUROPEAN POWER BLEEDER" on http://www.motiveproducts.com/02bleeders.html

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2004 VW Jetta TDI (manual)

Past MB's: '96 E300D, '83 240D, '82 300D, '87 300D, '87 420SEL