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There have been some occurrences of the fuel pump failing on Passats. If you lift up your rear seat, you will find an access panel on the right side, held down by three phillips screws. Under that is the fuel pump access, and the electrical connector. I would check for power to the connector while cranking (the two outer wires are power and ground, the two inner wires are for the fuel level sender)
If you have seats with fold-down backrests, the seat bottom should have a short "pull strap" under the front edge of the seat cushion, and the seat will flip forward.
If you do not, then the front edge of the seat needs to be pulled up hard on the left and right sides to release a metal clip. Then working at each end of the cushion at a time, keep it somewhat flat but push it toward the rear, and it will unhook a tab from the rear edge of the seat, and you should be able to lift the seat out. Reinstallation is the reverse, put the rear edge in place and push it toward the rear, checking that the hook catches and holds it down, and then snap the front edge downward.
Check the fuse first. It should be in the fuse panel on the side of the dash, it will be the second (or sometimes third) fuse from the bottom on the far left side.
If that's OK, let me have your VIN and I will check the wiring diagram and component locations
OK- your fuel pump fuse IS the third from the bottom, on the left side, it is a 15a.
The fuel pump relay is #4, counting from the left on the top row of relays. (accessible from under the dash) It should have a control # XXXXX 208 printed on top. The relay powers terminal 87, which powers the fuse, which feeds the pump. If the fuel pump relay is not operating, it will also not power fuse 29, which powers almost all the other engine components like the MAF, etc.
Fuse 28 is third from the bottom, fuse 29 is second from the bottom, etc... Both of those fuses are powered by the fuel pump relay.
Terminal 87 on the relay, if you pull the relay out you will see that each of the terminals is labeled next to it, there is also a diagram of the relay "internals" on the side of the relay.
I checked my relay on top the upper left corner is 214,79,X,384,X,205 381,173,X,X,X,185,204, 204,370,X,372,377
THE "X" being empty. Please explain to me where relay power terminal 87 would be