To remove

Remove the fuel pump. See FUEL PUMP or Fuel pump, E85 , E85.
Detach the connector from the pump cover.

Fig 1: Illustration For Steps 2-4
Courtesy of SAAB-SCANIA OF AMERICA, INC.
Undo the lock on the cable terminals.
Prise out the fuel level sensor cable terminal, pin no. 2 (grey cable), pin no. 3 (white cable), with cables from the connector. Use 85 80 151 Kit, connector pin removal tool.
Remove the fuel level sensor.

Fig 2: Removing Fuel Level Sensor
Courtesy of SAAB-SCANIA OF AMERICA, INC.

IMPORTANT: Take care not to damage the fuel level sensor.