Volkswagen Passat 1995 Official Factory Repair Manual page 2009

Fuel supply system components, removing and installing
http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Goto&type=repair&id=VW.B4.FU08.20.1
Fig. 1 Installation position of fuel pump flange
Marking on flange must align with marking on fuel
tank.
Note:
After installing Fuel Pump (FP) unit flange, check
whether supply, return and vent lines are still clipped
in at fuel tank.
Fig. 2 Checking bleeder valve
Lever in rest position: closed
Lever pressed in direction of arrow: open
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