Petrol engine 2.5-I-V6-TDI
If the fuel pump does not work, the following check must be performed.
To check, assemble and connect the electrical circuit according to Figure 4A.14.
Fig. 4A.14. Tools required to check the fuel pump power supply circuit
1 - switch,
2 - "Alligator" clip (with a wire that provides connection to the battery),
3 - movable fuse for 8 As with wires,
4 - single-pin electrical connector (connects instead of the fuel pump fuse),
5 - two-core wire with a cross-section of 1.5 mm² and a length of 5 m.
Remove fuse #28 (protects the fuel pump) in the fuse box.
Connect electrical connector 4 (fig. 4A.14) to the right contact of the fuse socket.
Connect the alligator clip cable to the positive terminal of the battery.
When switch 1 is turned on (fig. 4A.14) the fuel pump must be working.
(The original material is located on the website: AudiManual)