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Qashqai J11. Exhaust system (HRA2DDT, K9K, MR20DD) - part 2

PARTICLE FILTER

EX-17

< REMOVAL AND INSTALLATION >

[K9K]

PARTICLE FILTER

Exploded View

INFOID:0000000010427908

Refer to

GI-4, "Components"

for symbols in the figure.

Removal and Installation

INFOID:0000000010427909

CAUTION:

• Be sure to use genuine exhaust system parts or equivalents which are specially designed for heat

resistance, corrosion resistance and shape.

• Perform the operation with the exhaust system fully cooled down because the system is still hot just

after the engine stops.

• Be careful not to cut your hand on the insulator edge.

REMOVAL

Remove exhaust front tube. Refer to

EX-15, "Exploded View"

Remove front suspension member. Refer to

FSU-21, "Removal and Installation"

Unclip and move aside:
• exhaust gas temperature sensor harness. Refer to

EX-17, "Exploded View"

• DPF temperature sensor harness. Refer to

EX-17, "Exploded View"

DPF pressure sensor bracket

Clamp

Hose

Turbocharger

DPF temperature sensor

Gasket

DPF heat insulator

V-band clamp

Diesel Particle Filter

10. DPF oxygen sensor

11. DPF Bracket

12. DPF bracket strip

13. DPF exhaust gas exit

14. Exhaust gas pressure sensor

15. Exhaust gas pressure sensor bracket

16. Lock plate

17. Exhaust manifold

18. Exhaust gas temperature sensor

19. Exhaust gas pressure sensor tube

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EX-18

< REMOVAL AND INSTALLATION >

[K9K]

PARTICLE FILTER

Remove DPF temperature sensor (1).

Remove:
• DPF temperature sensor gasket nut (1).
• DPF temperature sensor gasket (2).

Remove DPF pressure sensor fixing nut (1).

Remove EGR cooler tube nut (1) from DPF.

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PARTICLE FILTER

EX-19

< REMOVAL AND INSTALLATION >

[K9K]

Remove bolts (1), nut (2) and DPF bracket (3).

Remove:
• DPF heat insulator. Refer to

EX-17, "Exploded View"

• DPF bracket strip. Refer to

EX-17, "Exploded View"

• DPF from turbocharger. Refer to

EX-17, "Exploded View"

10. Remove oxygen sensor on the workbench using [SST: — (Mot.1495)].

11. Remove DPF pressure sensor hose from DPF.

INSTALLATION

When replacing the differential pressure sensor, this procedure must be performed. Refer to

ECK-130,

"Special Repair Requirement List"

When replacing the diesel particle filter, this procedure must be performed. Refer to

ECK-130, "Special

Repair Requirement List"

• Install in the reverse order of removal.

Inspection

INFOID:0000000010427910

INSPECTION AFTER INSTALLATION

• With the engine running, check exhaust tube joints for gas leakage and unusual noises.
• Check to ensure that mounting brackets and mounting insulators are installed properly and free from undue

stress. Improper installation could result in excessive noise and vibration.

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EX-20

< PRECAUTION >

[R9M]

PRECAUTIONS

PRECAUTION

PRECAUTIONS

Precaution for Procedure without Cowl Top Cover

INFOID:0000000010502618

When performing the procedure after removing cowl top cover, cover
the lower end of windshield with urethane, etc to prevent damage to
windshield.

Removal and Installation

INFOID:0000000010287091

CAUTION:

• Be sure to use genuine exhaust system parts or equivalents which are specially designed for heat

resistance, corrosion resistance, and shape.

• Perform the operation with the exhaust system fully cooled down because the system will be hot

just after engine stops.

• Be careful not to cut your hand on the heat insulator edge.

PIIB3706J

EXHAUST SYSTEM

EX-21

< PERIODIC MAINTENANCE >

[R9M]

PERIODIC MAINTENANCE

EXHAUST SYSTEM

Inspection

INFOID:0000000010287092

Check exhaust pipes, muffler and mounting for improper attachment,
leaks, cracks, damage or deterioration.
• If anything is found, repair or replace damaged parts.

SMA211A

EX-22

< REMOVAL AND INSTALLATION >

[R9M]

EXHAUST SYSTEM

REMOVAL AND INSTALLATION

EXHAUST SYSTEM

Exploded View

INFOID:0000000010287093

Refer to

GI-4, "Components"

for symbols in the figure.

Removal and Installation

INFOID:0000000010287094

REMOVAL

Remove main muffler.

Disconnect exhaust valve.

Unclip and move aside harness of exhaust throttle valve.

Remove exhaust front tube.

INSTALLATION

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

Exhaust Front Tube and Main Muffler

Gasket

Mounting rubber

Exhaust front tube

Exhaust shutter

Exhaust center tube

Main muffler

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EXHAUST SYSTEM

EX-23

< REMOVAL AND INSTALLATION >

[R9M]

Perform "Exhaust throttle valve position learning". Refer to

EC9-150, "Work Procedure"

. when replacing

or removing exhaust throttle valve. Refer to

EC9-143, "Special Repair Requirement List"

CAUTION:

• Always replace exhaust gaskets with new ones when reassembling.
• If the insulator is badly deformed, repair or replace it. If deposits such as mud pile up on the insula-

tor, remove them.

• When installing the insulator avoid large gaps or interference between the insulator and each

exhaust pipe.

• Remove deposits from the sealing surface of each connection. Connect them securely to avoid gas

leakage.

• If it is difficult to install mounting rubber, use mild detergent for smooth installation.
• When installing each mounting rubber, avoid twisting or unusual extension in up/down and right/left

directions.

• Temporarily tighten mounting nuts. Check each part for unusual interference, and then tighten them

to the specified torque.

Inspection

INFOID:0000000010287095

INSPECTION AFTER INSTALLATION

stress. Improper installation could result in excessive noise and vibration.

EX-24

< REMOVAL AND INSTALLATION >

[R9M]

PARTICLE FILTER

PARTICLE FILTER

Exploded View

INFOID:0000000010287096

Refer to

GI-4, "Components"

for symbol marks in the figure.

Removal and installation

INFOID:0000000010287097

CAUTION:

• Perform the operation with the exhaust system fully cooled down because the system is still hot just

after engine stops.

• Be careful not to cut your hand on the insulator edge.

REMOVAL

Disconnect the batterie negative terminal.

Remove cowl top cover and extension cowl top. Refer to

EXT-29, "Exploded View"

Remove the air inlet pipe

Remove the air duct inlet.

Drain the manuel gearbox. Refer to

TM-81, "Draining"

(2WD) or

TM-140, "4WD : Draining"

(4WD)

Remove the front wheels.

Remove the drive shaft (right side). Refer to

FAX-22, "Removal and Installation (LH)"

and

FAX-26,

"Removal and Installation (RH)"

(2WD) or

FAX-60, "Removal and Installation (LH)"

and

FAX-63, "Removal

and Installation (RH)"

(4WD)

Exhaust gas pressure sensor

Exhaust gas pressure sensor take-off
pipe

Exhaust manifold

Exhaust gas temperature sensor

Turbocharger heat shield gasket

Oxygen sensor

Particle filter temperature sensor

Particle filter pressure sensor

Particle filter pressure pipe

10. Particle filter temperature sensor

11. Diesel particle filter

12. Particle filter heat shield

13. Particle filter bracket

14. Particle filter mounting

15. Particle filter mounting

E1BIA0618GB

PARTICLE FILTER

EX-25

< REMOVAL AND INSTALLATION >

[R9M]

Remove the drive shaft relay bearing nut (1) and the drive shaft
relay bearing.

Remove the rear torque rod. Refer to

EM-429, "Exploded View"

10. Remove the rear engine mounting bracket.

11. Remove transfer assembly. (if equipped). Refer to

DLN-155, "Removal and Installation"

12. Remove front suspension member. Refer to

FSU-21, "Removal and Installation"

13. Remove exhaust tube bracket nuts.

14. Remove the particle filter bracket. Refer to

EX-24, "Exploded View"

15. Remove the oxygen sensor. Refer to

EX-24, "Exploded View"

16. Disconnect the turbocharging pressure regulation vacumm hose

from turbocharger (1).

17. Unclip the turbocharging pressure regulation vacumm hose (2)

18. Remove the turbocharging pressure regulation solenoide valve

nuts (1)

19. Move aside the turbocharging pressure regulation solenoide

valve

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EX-26

< REMOVAL AND INSTALLATION >

[R9M]

PARTICLE FILTER

20. Remove the turbocharging pressure regulation solenoide valve

bracket bolts (1)

21. Remove the turbocharging pressure regulation solenoide valve

bracket.

22. Disconnect the particle filter sensor (1), (2) and (3).
23. Remove the particle sensor connector bracket.

24. Remove the bolts (1) of the particle filter straps and the straps.

25. Move the engine forward and remove the particle filter from under.

CAUTION:

Be careful not to impact or damage particle filter pressure sensor.

INSTALLATION

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

CAUTION:

• Be careful not to impact or damage particle filter sensor.
• When installing never use such tools as an air impact wrench.

Perform "Diesel particulate filter data clear". Refer to

EC9-157, "Description"

. when replacing diesel partic-

ulate filter. Refer to

EC9-143, "Special Repair Requirement List"

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EXHAUST GAS TEMPERATURE SENSOR

EX-27

< REMOVAL AND INSTALLATION >

[R9M]

EXHAUST GAS TEMPERATURE SENSOR

EXHAUST GAS TEMPERATURE SENSOR UPSTREAM OF THE TURBO-
CHARGER

EXHAUST GAS TEMPERATURE SENSOR UPSTREAM OF THE TURBOCHARGER
: Removal and installation

INFOID:0000000010287098

REMOVAL

Disconnect the batterie negative cable.

Remove cowl top cover and extension cowl top. Refer to

EXT-29, "Removal and Installation"

Remove engine undercover.

Remove the diesel particle filter. Refer to

EX-24, "Removal and installation"

Disconnect the exhaust gas temperature sensor upstream of the
turbocharger (1).

Remove the exhaust gas temperature sensor upstream of the turbocharger. Refer to

EX-27, "EXHAUST

GAS TEMPERATURE SENSOR UPSTREAM OF THE TURBOCHARGER : Removal and installation"

CAUTION:

Be careful not to impact or damage exhaust gas temperature sensor.

INSTALLATION

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

CAUTION:

• Before installing a new exhaust gas temperature sensor, clean exhaust manifold thread.
• Be careful not to impact or damage exhaust gas temperature sensor.
• When installing, never use such tools as an air impact wrench

EXHAUST GAS TEMPERATURE SENSOR ON THE EXHAUST GAS COOLER

EXHAUST GAS TEMPERATURE SENSOR ON THE EXHAUST GAS COOLER : Re-
moval and installation

INFOID:0000000010287099

REMOVAL

Disconnect the batterie negative cable.

Remove cowl top cover and extension cowl top. Refer to

EXT-29, "Removal and Installation"

Remove engine undercover.

Remove the injector rail protector.

Remove the oil separator. Refer to

EM-402, "Exploded View"

Remove the exhaust gas recirculation low pressure solenoide valve. Refer to

EM-385, "Exploded View"

Remove ther exhaust gas cooler. Refer to

EM-385, "Exploded View"

CAUTION:

Be careful not to impact or damage exhaust gas temperature sensor.

Remove the exhaust gas temperature sensor from the exhaust gas cooler on the workbench using the
tool [SST: — (Mot.1807)]. Refer to

EX-24, "Exploded View"

INSTALLATION

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EX-28

< REMOVAL AND INSTALLATION >

[R9M]

EXHAUST GAS TEMPERATURE SENSOR

• Install the exhaust gas temperature sensor on the exhaust gas cooler on the workbench using the tool [SST:

— (Mot.1807)] and the tool [SST: — (Ms.1973)].

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

CAUTION:

• Before installing a new exhaust gas temperature sensor, clean exhaust gas cooler thread.
• Be careful not to impact or damage exhaust gas temperature sensor.
• When installing, never use such tools as an air impact wrench

EXHAUST GAS PRESSURE SENSOR

EX-29

< REMOVAL AND INSTALLATION >

[R9M]

EXHAUST GAS PRESSURE SENSOR

Removal and installation

INFOID:0000000010287100

REMOVAL

Disconnect the batterie negative terminal.

Remove cowl top cover and extension cowl top. Refer to

EXT-29, "Exploded View"

Remove the oxygen sensor. Refer to

EX-24, "Exploded View"

Disconnect the exhaust gas pressure sensor connector.

Remove:

the bolt (1) from the exhaust gas pressure sensor bracket.

the clip (2) between the exhaust gas pressure sensor hose and
take-off pipe.

Remove the exhaust gas pressure sensor and hose assembly.

Remove the exhaust gas pressure sensor clamp. Refer to

EX-24, "Exploded View"

Separate the exhaust gas pressure sensor from hose. Refer to

EX-24, "Exploded View"

Separate the exhaust gas pressure sensor from bracket.

INSTALLATION

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

NOTE:
Always replace the clamp between the exhaust gas pressure sensor hose and the take-off pipe.

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EX-30

< REMOVAL AND INSTALLATION >

[R9M]

PARTICLE FILTER PRESSURE SENSOR

PARTICLE FILTER PRESSURE SENSOR

Removal and installation

INFOID:0000000010287101

REMOVAL

Disconnect the batterie negative terminal.

Remove cowl top cover and extension cowl top. Refer to

EXT-29, "Exploded View"

Remove the air inlet pipe

Remove the air duct inlet.

Disconnect the turbocharging pressure regulation vacumm hose
from turbocharger (1).

Unclip the turbocharging pressure regulation vacumm hose (2)

Remove the turbocharging pressure regulation solenoide valve
nuts (1)

Move aside the turbocharging pressure regulation solenoide
valve

Remove the turbocharging pressure regulation solenoide valve
bracket bolts (1)

10. Remove the turbocharging pressure regulation solenoide valve

bracket.

11. Disconnect the particle filter sensor (1), (2) and (3).
12. Remove the particle sensor connector bracket.

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PARTICLE FILTER PRESSURE SENSOR

EX-31

< REMOVAL AND INSTALLATION >

[R9M]

13. Remove the particle filter. Refer to

EX-24, "Removal and installation"

14. Remove the particle filter pressure sensor from the Particle filter on the workbench Refer to

EX-24,

"Exploded View"

INSTALLATION

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

CAUTION:

• Before installing particle filter pressure sensor, clean particle filter thread.
• Be careful not to impact or damage particle filter pressure sensor.
• When installing never use such tools as an air impact wrench.