Disassembly and Assembly: Disassembly

Disconnect fuel level sensor unit/fuel tank temperature sensor harness connector (1).
NOTE: Hold connector with your fingers, because there is no tab for releasing stopper. Pull it out straight downward.

Fig 1: Identifying Fuel Level Sensor Unit/Fuel Tank Temperature Sensor Harness Connector
Courtesy of NISSAN NORTH AMERICA, INC.
Remove fuel tank temperature sensor (2) from fuel filter and fuel pump assembly (3).

Fig 2: Identifying Fuel Tank Temperature Sensor, Fuel Filter, Fuel Pump Assembly And Fuel Level Sensor Unit
Courtesy of NISSAN NORTH AMERICA, INC.
Using a suitable tool press up on clip (<==) and remove fuel level sensor unit (1) from fuel filter and fuel pump assembly (2).
CAUTION:
- Be careful not to damage the fuel level sensor unit.
- Do not disassemble fuel filter and fuel pump assembly.
Fig 3: Removing Fuel Level Sensor Unit From Fuel Filter And Fuel Pump Assembly Using Tool
Courtesy of NISSAN NORTH AMERICA, INC.