Nissan Qashqai J11. Manual — part 86
CHARGE AIR COOLER
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< REMOVAL AND INSTALLATION >
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Inspection
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INSPECTION AFTER REMOVAL
1.
Check that the charge air cooler is not full of oil. In that case, clean it with cleaning agent and then let it
dry.
2.
Check air passages of charge air cooler core and fins for clogging, leaks or deformation. Clean or replace
charge air cooler in necessary.
• Never deform core fins.
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< REMOVAL AND INSTALLATION >
[K9K]
EGR SYSTEM
EGR SYSTEM
Exploded View
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for symbol marks in the figure.
Removal and Installation
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REMOVAL
NOTE:
Exhaust Gas Recycling system is divided in two:
• High pressure Exhaust Gas Recycling.
• Low pressure Exhaust Gas Recycling.
1.
High pressure EGR valve
2.
Gasket
3.
High pressure EGR housing
4.
Electric throttle control actuator
5.
Low pressure EGR cooler
6.
Low pressure EGR valve
7.
Low pressure EGR intake tube
8.
Exhaust gas temperature sensor
9.
Clamp
10. High pressure EGR pipe
11.
EGR bracket
A.
To EGR tube
B.
From DPF
C.
From cylinder block
D.
To turbocharger air inlet pipe
E.
From charge air cooler
F.
From exhaust manifold
G.
To thermoplunger
E1BIA0900GB
EGR SYSTEM
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High pressure Exhaust Gas Recycling.
1.
Remove air cleaner case. Refer to
2.
Remove turbocharger air inlet pipe. Refer to
.
3.
Remove air inlet tube and air inlet hose. Refer to
4.
Remove electric throttle control actuator.
5.
Disconnect high pressure EGR solenoid valve connector. Refer to
.
6.
Remove high pressure EGR volume control valve mounting bolts .
7.
Remove high pressure EGR volume control valve. Refer to
.
CAUTION:
• Handle carefully to avoid any shock to EGR volume control valve.
• Never disassemble EGR volume control valve.
• Cover engine openings to avoid entry of foreign materials.
CAUTION:
High pressure EGR volume control valve housing, high pressure EGR pipe and EGR tube are con-
nected.
To remove those parts, it is necessary to follow the procedure below.
• Drain engine coolant. Refer to
CAUTION:
Perform this step when the engine is cold.
• Remove turbocharger. Refer to
.
• Remove high pressure EGR pipe. Refer to
• Remove EGR tube. Refer to
.
• Remove high pressure EGR volume control valve housing. Refer to
.
CAUTION:
• Handle carefully to avoid any shock to EGR volume control valve.
• Never disassemble EGR volume control valve.
• Cover engine openings to avoid entry of foreign materials.
Low pressure Exhaust Gas Recycling.
1.
Drain engine coolant. Refer to
CAUTION:
Perform this step when the engine is cold.
2.
Remove Diesel Particle Filter. Refer to
.
3.
Remove turbocharger. Refer to
4.
Remove exhaust gas temperature sensor on the low pressure EGR intake tube. Refer to
5.
Remove low pressure EGR intake tube. Refer to
.
6.
Remove low pressure EGR volume control valve mounting bolts. Refer to
.
7.
Remove low pressure EGR volume control valve. Refer to
CAUTION:
• Handle carefully to avoid any shock to EGR volume control valve.
• Never disassemble EGR volume control valve.
• Cover engine openings to avoid entry of foreign materials.
8.
Remove low pressure EGR cooler mounting bolts. Refer to
9.
Remove low pressure EGR cooler. Refer to
INSTALLATION
Note the following, and install in the reverse order of removal.
CAUTION:
Clean each joint surface before installation.
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< REMOVAL AND INSTALLATION >
[K9K]
EGR SYSTEM
1.
Perform "EGR volume control valve position learning". Refer to
removing or replacing EGR volume control valve.
2.
Perform "Low pressure EGR volume control valve position learning". Refer to
. when removing or replacing low pressure EGR volume control.
3.
When replacing the EGR volume control valve, this procedure must be performed. Refer to
"Special Repair Requirement List"
.
4.
When replacing the low pressure EGR volume control valve, this procedure must be performed. Refer to
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