Caution!
- Note risks when handling fuel.
- Disconnect ground lead from battery and insulate.
Remove seat.
Disconnect the plugs for fuel-level sensor (3) and fuel pump (2).
Close off fuel supply line (5) and the fuel return line (4) with hose clips, BMW # 133010.
Open the hose clips (arrows) and disconnect the fuel lines from the fuel-pump unit.
Release ring (1) using wrench, BMW # 16 1 021.
Remove fuel-pump unit (3) with gasket (2).
Installation is the reverse of the removal procedure: pay particular attention to the following. Make sure the fuel-pump unit is installed in the correct position and that the fuel feed hose and the fuel return hose are correctly routed.
Close hose clamps with pliers, BMW # 13 1 500.
Tightening torques:
- Union nut to fuel tank: 36 Nm
Removing and installing fuel pump
Remove fuel pump unit.
Remove the warning-contact switch.
Remove the fuel strainer.
Installation is the reverse of the removal procedure.
Removing and installing fuel strainer
Remove fuel pump unit.
Using a screwdriver, pry fuel strainer (7) off the pump.
Installation is the reverse of the removal procedure.
Removing and installing warning-contact switch for fuel level
Remove fuel pump unit.
Cut through cable clip (5).
Clamp fuel-pump unit in vise with protective jaws.
Use a screwdriver to bend back the tabs on contact switch (6) and push the switch off the pump bracket.
Use a punch of suitable diameter to drive pins (4) out of the housing.
Installation is the reverse of the removal procedure.
Note: The reserve fuel capacity of the fuel tank can be adjusted by varying the height of the contact switch in the tank.