Action

Start by checking box C2 on the modification identity plate. It there is no mark in the box, proceed as follows.





1. Drain the fuel tank via the filler pipe. using the tank-draining unit.

Important
Always observe scrupulous cleanliness when working on the fuel system. Plug or blank off openings to prevent ingress of dirt into the system.

2. Drive the car onto a lift. Position the right rear support as far out as possible so that it will not obstruct the work.

Raise the car.





3. Disconnect the rubber hoses from the tank and plug the tank openings. Use special tool 8394777.

4. Undo the clamp securing the fuel filter.

5. Support the tank by means of a pillar lift. Undo the nuts on the tank straps and unhook the straps.

6. Carefully lower the tank, RH side first, until the top is visible.

Important
Detach the fuel lines from the clips on the tank and car body to prevent their being pinched or fracturing.

7. Unplug the two electrical connectors from the fuel pump.

8. Disconnect the flow and return lines from the fuel pump. Lower the tank to a convenient height for working.

9. Using tool 83 94 462, remove the screw top from the pump.

10. Raise the pump and position the top about 50 mm above the tank. Rotate the pump about 80° clockwise and carefully remove it.

11. Fit a new "0" ring in the groove in the tank.

12. Carefully insert the new pump into position. Check that the marks on the pump and the tank are lined up.

13. Fit the screw top.

Tightening torque: 75 Nm (55 lbf ft)

Important
Inspect the fuel-line "0" rings and renew as necessary.





14. Raise the tank and connect the flow and return lines to the fuel pump.

15. Plug in the two pump connectors.

16. Carefully raise the tank into position.

Important
Take care not to pinch or fracture the fuel lines.

Press the fuel lines into the clips on the tank and car body.

17. Support the tank by means of a pillar lift. Raise the tank and hook on the supporting straps. Tighten the strap nuts.

18. Fit the clamp for the fuel filter.

19. Remove the plugs from the tank openings and reconnect the rubber hoses.

20. Lower the car. Refill the tank with the same quantity of fuel as that drained off.