Nissan Qashqai (2007-2010). Manual — part 493

FL-8

< ON-VEHICLE REPAIR >

[HR16DE, MR20DE]

FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY

7.

Disconnect harness connector (A) and quick connector (B).

• Remove quick connector in the following procedures.
- Pinch quick connector square-part (A) with your fingers, and

pull out the quick connector by hand.

- If quick connector and tube on sender unit are stuck, push and

pull several times until they move, and pull out.

CAUTION:

• Quick connector can be removed when the tabs are

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

• Never use any tools to disconnect 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 disconnection.
• To keep the connecting portion clean and to avoid dam-

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

• Never insert plug, preventing damage on o-ring in quick

connector.

8.

Using lock ring wrench (commercial service tool), remove lock
ring.
NOTE:
For reference when installing, put a matching mark on lock ring,
fuel pump assembly and fuel tank.

9.

Remove fuel level sensor unit, fuel filter and fuel pump assembly.

CAUTION:

• Never bend float arm during removal.
• Avoid polluting the inside by residue fuel. Draw out with avoiding inclination by supporting with

a cloth.

• Avoid impacts such as falling when handling components.

INSTALLATION

Note the following, and install in the reverse order of removal.

: Vehicle front

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PBIC3779E

PBIC0713E

PBIC0240E

FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY

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< ON-VEHICLE REPAIR >

[HR16DE, MR20DE]

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Fuel Level Sensor Unit, Fuel Filter and Fuel Pump Assembly

1.

Install O-ring to fuel tank without any twist.

2.

Install fuel level sensor unit with aligning matching mark (A) on
fuel level sensor unit and (B) on fuel tank as shown in the figure.

Quick Connector

Connect quick connector of fuel feed tube in the following procedures.

1.

Check the connection for damage or any foreign materials.

2.

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

3.

After connecting, make sure that the connection is secure by following procedures.
• Visually confirm that the two tabs are connected to the connector.
• Pull the tube and the connector to make sure they are securely

connected.

4.

Connect harness connector.

Inspection Hole Cover

• Before installing inspection hole cover, check that the connecting part has no fuel leaks. Refer to

FL-10,

"2WD : Inspection"

.

1.

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

2.

Lock clips by turning counterclockwise.

2WD : Disassembly and Assembly

INFOID:0000000000905664

DISASSEMBLY

1.

Disconnect harness connector.

2.

Remove fuel level sensor unit (1) in the following procedures.

a.

Push the pawl of fuel level sensor unit mounting area with an L-
shaped iron rod or an equivalent to unlock.

CAUTION:

Be careful not to damage fuel level sensor unit.

b.

With the fuel level sensor unit unlocked, slide it in the direction
shown by the arrow (

).

ASSEMBLY

: Vehicle front

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PBIC1653E

PBIC4900J

FL-10

< ON-VEHICLE REPAIR >

[HR16DE, MR20DE]

FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY

Install fuel level sensor unit according to the following procedure.
• Insert until you hear a “click” sound and actually feel the engagement.
• After inserting, apply force in reverse direction (removal direction) to ensure it cannot be pulled out.

2WD : Inspection

INFOID:0000000000905653

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.

4WD

4WD : Exploded View

INFOID:0000000001078679

Removal and Installation

Disassembly and Assembly

1.

Lock ring

2.

Fuel level sensor unit, fuel filter and fuel pump
assembly

3.

O-ring

4.

Sub fuel level sensor assembly

:Vehicle front

Refer to

GI-4, "Components"

for symbols in the figure.

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FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY

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< ON-VEHICLE REPAIR >

[HR16DE, MR20DE]

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CAUTION:

Never remove or disassemble parts unless instructed as shown in the figure.

4WD : Removal and Installation

INFOID:0000000001078680

REMOVAL

WARNING:

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

FL-3, "General Pre-

cautions"

.

1.

Check fuel level on fuel gauge. If fuel gauge indicates more than
the level as shown in the figure (full or almost full), drain fuel
from fuel tank until fuel gauge indicates level as shown in the fig-
ure or below.
NOTE:
Because fuel will be spilled when removing fuel level sensor
unit, fuel filter and fuel pump assembly for the top of the fuel is
above the fuel level sensor units installation surface.
• As a guide, fuel level becomes the position as shown in the

figure or below when approximately 15 (3- 1/4 Imp gal) of
fuel are drained from fuel tank.

• In case fuel pump does not operate, perform the following pro-

cedure.

a.

Insert hose of less than 20 mm (0.79 in) in diameter into fuel filler tube through fuel filler opening to draw
fuel from fuel filler tube.

b.

Disconnect fuel filler hose from fuel filler tube. Refer to

FL-17, "4WD : Exploded View"

.

c.

Insert hose into fuel tank through fuel filler hose to draw fuel from fuel tank.

2.

Release the fuel pressure from the fuel lines. Refer to

EC-978, "Inspection"

.

3.

Open fuel filler lid.

4.

Open fuel filler cap and release the pressure inside the fuel tank.

5.

Remove rear seat cushion. Refer to

SE-30, "Exploded View"

.

6.

Remove inspection hole cover.
• Using a screwdriver, remove it by turning clips clockwise by 90 degrees.

1.

Fuel filter and fuel pump assembly

2.

Fuel level sensor unit

3.

Sub fuel level sensor base

4.

Sub fuel level sensor unit

: Vehicle front

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