Nissan Qashqai J11. Manual - part 565

FUEL SYSTEM

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PERIODIC MAINTENANCE

FUEL SYSTEM

Inspection

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Inspect fuel lines, fuel filler cap and fuel tank for improper attach-
ment, leaks, cracks, damage, loose connections, chafing or deterio-
ration.
If necessary, repair or replace damaged parts.

Quick Connector

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CAUTION:

• After connecting fuel tube quick connectors, make sure quick connectors are secure.
• Ensure that connector and resin tube do not contact any adjacent parts.

A

: Engine

B

: Fuel line

C

: Fuel tank

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FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY

REMOVAL AND INSTALLATION

FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY

Exploded View

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Removal and Installation

Refer to 

GI-4, "Components"

 for symbol marks in the figure.

Removal and Installation

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WARNING:

Read “General Precautions” when working on the fuel system. Refer to 

FL-3, "General Precautions"

.

REMOVAL

1.

Release the fuel pressure from the fuel lines. Refer to 

ECH-121, "Work Procedure"

.

2.

Check fuel level on a level ground. If the fuel level is at 1/2 or higher, drain enough fuel so that the level on
the fuel gauge is at half or below.
• This is to prevent overflow of fuel from the tank when the  fuel level sensor unit, fuel filter and fuel pump

assembly is removed 

• In the event of malfunction in fuel pump, insert a hose measuring less than 20mm (0.79 in) in diameter

into fuel filler tube through fuel filler opening to draw fuel from filler tube.

- Disconnect fuel filler hose from fuel filler tube. Refer to 

FL-10, "Exploded View"

. 

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

3.

Disconnect batterie cable from negative terminal.

1.

Lock ring

2.

Fuel level sensor unit, fuel filter and fuel pump 
assembly

3.

O-ring

4.

Fuel tank

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Guideline

: Draw approximately 27 liters (6 Imp gal) from a full-tank con-
dition.

FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY

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4.

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

5.

Remove rear seat. Refer to 

SE-35, "Removal and Installation"

.

6.

Remove inspection hole cover.

7.

Disconnect harness connector and fuel feed tube.

• Remove quick connector in the following procedures.
- NOTE:

• The figure show the process of quick connector disconnection. Parts arround quick connector could

have a different shape compare to the figure.

 

- Hold the sides of quick connector, press tabs and pull out fuel

feed tube.

- If quick connector sticks to tube of main fuel level sensor unit,

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 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.

1

: Harness connector

2

: Quick connector

3

: Fuel level sensor unit, fuel filter and fuel pump assembly

4

:  Lock  ring

: Vehicle front

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A

: Push in tabs

B

:  Pull

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A

: Connection (cross-section)

B

: Disconnection (cross-section)

C

: Quick connector

D

:  Hard  tube

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FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY

8.

Use lock ring wrench [SST: KV101207S0] (A) to remove lock
ring.

CAUTION:

• To prevent lock ring wrench from being detached,

securely hold down spinner handle (B) by hand.

• To reduce impact caused by removal operation, use long

spinner handle [handle length: 60 cm (23.62 in) or more]
and slowly turn it counterclockwise.

9.

Remove fuel level sensor unit, fuel filter and fuel pump assembly
(1).

CAUTION:

• Never bend float arm (2) during removal.
• Never pollute the residual fuel inside of the tank. Draw out

avoiding inclination by supporting with a cloth.

• Never cause impacts such by dropping when handling

components.

INSTALLATION

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

Fuel Level Sensor Unit

1.

Install new O-ring to fuel tank without any twist.

2.

Install the fuel gauge on the fuel tank with the fuel gauge top sur-
face (A) faced the front of the vehicle.

CAUTION:

• Never allow O-ring to drop.
• Never bend float arm during installing.

3.

Install lock ring for fuel level sensor unit, fuel filter and fuel pump assembly with lock ring wrench [SST:
KV101207S0] by turning clockwise.

CAUTION:

• Install lock ring horizontally.
• Turn the lock ring (A) until it is engaged in the fuel tank

side (B) as shown in the figure.

Quick Connector

• Connect quick connector as follows:
1.

Check the connection for damage or any foreign materials.

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: Vehicle front

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