For removing and installing the fuel pump, there is need to first unlatch the fuel tank service cap. Unscrew the connectors with advisable marginal force using a screwdriver. To remove the fuel pump wiring disconnected it with the help of BMW special tool 610307 which is present at the blue electrical connector positioned inside the tank. This is crucial for the simple reason that the connector on the fuel pump should not be removed at all because the replacement fuel pump comes with the connector attached to it. For reassembly it will be constructive to preserve the position of the wiring in the blue connector. When carrying out job within fuel tank, pull the tabs in the direction as shown to disconnect the line and to remove the fuel line, pull the tabs for quick connector. Pull the suction-jet line in the indicated direction to release the retaining lug, and simultaneous with this, push the lug to the rear of the fuel tank, thus lifting the fuel pump in conjunction with the surge chamber. For installation the sequence has to be done in the reverse order that it was removed and make sure the correct position of fuel pump before the guides and make sure the mounting lug lock into the fuel pump correctly. The fuel pump has an electrical wiring that should be plugged into the blue connector and the connectors for the fuel line must click into place. For the fuel pump not to be damaged it is recommended to refill the tank with at least 5 liters (1.5 gallons) of fuel before the engine is ignited after the work.
