Nissan Qashqai J11. Manual - part 578

FUEL LEVEL SENSOR UNIT

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5.

Install fuel level sensor unit with its matching mark (A) aligned
with fuel tank matching mark (B) as shown in the figure.

6.

Use lock ring wrench [SST: KV99104700] to install lock ring as
per the following steps.

a.

Align the “ ” mark located on the rim of the lock ring (1) with the
“MAX” position of the fuel tank. Press the locking ring horizon-
tally to prevent the lock ring from tilting.

b.

After aligning the “ ” mark with “MAX” turn the lock ring counter-
clockwise until the lock ring thread engages with the tank.
Turn the lock ring roughly 540

°

 until the “ ” mark is between

"MIN" and "MAX" position.

c.

Check that the “ ” mark of the lock ring (1) is between MIN and
MAX [i.e. within (A)].

7.

Connect quick connector of fuel feed tube as per following procedures.

a.

Check the connection for damage or any foreign materials.

b.

Align the connector with the tube, then insert the connector straight into the tube until a “click” sound is
heard.

c.

After connecting, check that the connection is secured with following procedures.
• Visually confirm that the two tabs are connected to the connector. 

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PBIC0240E

Tightening angle

: Approximately 540

°

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FUEL LEVEL SENSOR UNIT

• Pull (A) the tube and the connector to check that they are

securely connected.

8.

Connect harness connector.

Inspection Hole Cover

• Before installing inspection hole cover, check that the connecting part has no fuel leakage. 
1.

Install inspection hole covers with the front mark (arrow) facing front of vehicle. 

2.

Lock clips by turning counterclockwise.

INSPECTION AFTER INSTALLATION

Check that there is no fuel leakage at connections in the following steps.
• Start engine and rev it up and check that there is no fuel leakage at connections.

4WD : Inspection

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INSPECTION AFTER INSTALLATION

Use the following procedure to check for fuel leaks.

1.

Turn ignition switch “ON” (with engine stopped), then check connections for leaks by applying fuel pres-
sure to fuel piping.

2.

Start engine and let it idle and make sure there are no fuel leaks at the fuel system connections.

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FUEL TANK

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FUEL TANK

2WD

2WD : Exploded View

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Refer to

GI-4, "Components"

  for symbol marks in the figure.

2WD : Removal and Installation

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REMOVAL

WARNING:

Be sure to read “General Precautions” when working on the fuel system. Refer to 

FL-30, "General Pre-

cautions"

.

1.

Perform the steps 1 to 7 of “REMOVAL” in “ FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL
PUMP ASSEMBLY”. Refer to 

FL-6, "Removal and Installation"

.

2.

Drain fuel from fuel tank if necessary. Refer to 

FL-6, "Removal and Installation"

.

CAUTION:

• Fuel tank will become unstable whilst removing. Fuel should be drained from tank prior to

removal to reduce this effect.

• Situate vehicle on a flat and solid surface.

3.

Remove main muffler. Refer to 

EX-6, "Exploded View"

.

4.

Remove vent hose from filler tube.

1.

Fuel filler cap

2.

Grommet

3.

Fuel filler tube

4.

Clamp

5.

Fuel filler hose

6.

Clamp

7.

Clamp

8.

Vent hose

9.

Evap hose

10. Fuel tank 

11.

Fuel tank band (RH)

12. Fuel tank band (LH)

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5.

Remove fuel filler hose from fuel tank.

CAUTION:

• Do not remove fuel filler hose from fuel filler tube to prevent interference with suspension when

installing.

• If removal of fuel filler hose from fuel filler tube is necessary use mating marks to ensure correct

orientation. 

6.

Disconnect EVAP hose.
• Remove quick connector in the following procedures.
- Hold the sides of quick connector, press tabs and disconnect EVAP hose.
- If quick connector sticks to tube, push and pull quick connectors several times until they start to move.

Then disconnect them by pulling.

CAUTION:

• Quick connector can be disconnected when the tabs (1)

are depressed completely. Never twist it more than neces-
sary.

• Never use any tools to disconnected quick connector.

• Keep resin tube away from heat. Be especially careful

when welding near the resin tube.

• Prevent acid liquid such as battery electrolyte, etc. from

getting on resin tube.

• Never bend or twist resin tube during installation and dis-

connection.

• Never insert plug, preventing damage to O–ring in quick

connector.

• To keep the connecting portion clean and to avoid dam-

age and foreign materials, cover them completely with
plastic bags or something similar.

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A

: Connection (cross-section)

B

: Disconnection (cross-section)

C

: Quick connector

D

: Hard tube

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