Qashqai J11. Exhaust system (HRA2DDT, K9K, MR20DD) — part 2
PARTICLE FILTER
EX-17
< REMOVAL AND INSTALLATION >
[K9K]
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PARTICLE FILTER
Exploded View
INFOID:0000000010427908
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
1.
Remove exhaust front tube. Refer to
.
2.
Remove front suspension member. Refer to
FSU-21, "Removal and Installation"
3.
Unclip and move aside:
• exhaust gas temperature sensor harness. Refer to
.
• DPF temperature sensor harness. Refer to
1.
DPF pressure sensor bracket
2.
Clamp
3.
Hose
4.
Turbocharger
5.
DPF temperature sensor
6.
Gasket
7.
DPF heat insulator
8.
V-band clamp
9.
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
E1BIA0896GB
EX-18
< REMOVAL AND INSTALLATION >
[K9K]
PARTICLE FILTER
4.
Remove DPF temperature sensor (1).
5.
Remove:
• DPF temperature sensor gasket nut (1).
• DPF temperature sensor gasket (2).
6.
Remove DPF pressure sensor fixing nut (1).
7.
Remove EGR cooler tube nut (1) from DPF.
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PARTICLE FILTER
EX-19
< REMOVAL AND INSTALLATION >
[K9K]
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8.
Remove bolts (1), nut (2) and DPF bracket (3).
9.
Remove:
• DPF heat insulator. Refer to
• DPF bracket strip. Refer to
• DPF from turbocharger. Refer to
.
10. Remove oxygen sensor on the workbench using [SST: — (Mot.1495)].
11. Remove DPF pressure sensor hose from DPF.
INSTALLATION
1.
When replacing the differential pressure sensor, this procedure must be performed. Refer to
"Special Repair Requirement List"
.
2.
When replacing the diesel particle filter, this procedure must be performed. Refer to
• 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]
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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
for symbols in the figure.
Removal and Installation
INFOID:0000000010287094
REMOVAL
1.
Remove main muffler.
2.
Disconnect exhaust valve.
3.
Unclip and move aside harness of exhaust throttle valve.
4.
Remove exhaust front tube.
INSTALLATION
Note the following, and install in the reverse order of removal.
Exhaust Front Tube and Main Muffler
1.
Gasket
2.
Mounting rubber
3.
Exhaust front tube
4.
Exhaust shutter
5.
Exhaust center tube
6.
Main muffler
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EXHAUST SYSTEM
EX-23
< REMOVAL AND INSTALLATION >
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1.
Perform "Exhaust throttle valve position learning". Refer to
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
• 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.
EX-24
< REMOVAL AND INSTALLATION >
[R9M]
PARTICLE FILTER
PARTICLE FILTER
Exploded View
INFOID:0000000010287096
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
1.
Disconnect the batterie negative terminal.
2.
Remove cowl top cover and extension cowl top. Refer to
3.
Remove the air inlet pipe
4.
Remove the air duct inlet.
5.
Drain the manuel gearbox. Refer to
(2WD) or
(4WD)
6.
Remove the front wheels.
7.
Remove the drive shaft (right side). Refer to
FAX-22, "Removal and Installation (LH)"
"Removal and Installation (RH)"
FAX-60, "Removal and Installation (LH)"
(4WD)
1.
Exhaust gas pressure sensor
2.
Exhaust gas pressure sensor take-off
pipe
3.
Exhaust manifold
4.
Exhaust gas temperature sensor
5.
Turbocharger heat shield gasket
6.
Oxygen sensor
7.
Particle filter temperature sensor
8.
Particle filter pressure sensor
9.
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
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PARTICLE FILTER
EX-25
< REMOVAL AND INSTALLATION >
[R9M]
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8.
Remove the drive shaft relay bearing nut (1) and the drive shaft
relay bearing.
9.
Remove the rear torque rod. Refer to
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
15. Remove the oxygen sensor. Refer to
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.
1.
Perform "Diesel particulate filter data clear". Refer to
. 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]
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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
1.
Disconnect the batterie negative cable.
2.
Remove cowl top cover and extension cowl top. Refer to
EXT-29, "Removal and Installation"
.
3.
Remove engine undercover.
4.
Remove the diesel particle filter. Refer to
EX-24, "Removal and installation"
.
5.
Disconnect the exhaust gas temperature sensor upstream of the
turbocharger (1).
6.
Remove the exhaust gas temperature sensor upstream of the turbocharger. Refer to
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
1.
Disconnect the batterie negative cable.
2.
Remove cowl top cover and extension cowl top. Refer to
EXT-29, "Removal and Installation"
.
3.
Remove engine undercover.
4.
Remove the injector rail protector.
5.
Remove the oil separator. Refer to
6.
Remove the exhaust gas recirculation low pressure solenoide valve. Refer to
7.
Remove ther exhaust gas cooler. Refer to
CAUTION:
Be careful not to impact or damage exhaust gas temperature sensor.
8.
Remove the exhaust gas temperature sensor from the exhaust gas cooler on the workbench using the
tool [SST: — (Mot.1807)]. Refer to
.
INSTALLATION
E1BIA0622ZZ
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]
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EXHAUST GAS PRESSURE SENSOR
Removal and installation
INFOID:0000000010287100
REMOVAL
1.
Disconnect the batterie negative terminal.
2.
Remove cowl top cover and extension cowl top. Refer to
3.
Remove the oxygen sensor. Refer to
4.
Disconnect the exhaust gas pressure sensor connector.
5.
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.
6.
Remove the exhaust gas pressure sensor and hose assembly.
7.
Remove the exhaust gas pressure sensor clamp. Refer to
8.
Separate the exhaust gas pressure sensor from hose. Refer to
9.
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
1.
Disconnect the batterie negative terminal.
2.
Remove cowl top cover and extension cowl top. Refer to
3.
Remove the air inlet pipe
4.
Remove the air duct inlet.
5.
Disconnect the turbocharging pressure regulation vacumm hose
from turbocharger (1).
6.
Unclip the turbocharging pressure regulation vacumm hose (2)
7.
Remove the turbocharging pressure regulation solenoide valve
nuts (1)
8.
Move aside the turbocharging pressure regulation solenoide
valve
9.
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]
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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
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.
EX-32
< REMOVAL AND INSTALLATION >
[R9M]
PARTICLE FILTER TEMPERATURE SENSORS
PARTICLE FILTER TEMPERATURE SENSORS
Removal and installation
INFOID:0000000010287102
REMOVAL
1.
Disconnect the batterie negative terminal.
2.
Remove cowl top cover and extension cowl top. Refer to
3.
Remove the air inlet pipe
4.
Remove the air duct inlet.
5.
Disconnect the turbocharging pressure regulation vacumm hose
from turbocharger (1).
6.
Unclip the turbocharging pressure regulation vacumm hose (2)
7.
Remove the turbocharging pressure regulation solenoide valve
nuts (1)
8.
Move aside the turbocharging pressure regulation solenoide
valve
9.
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 TEMPERATURE SENSORS
EX-33
< REMOVAL AND INSTALLATION >
[R9M]
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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
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.
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