2003 NISSAN X-TRAIL cooling

BLOWER MOTOR
ATC-127
C
D
E
F
G
H
I
K
L
MA
B
AT C

BLOWER MOTORPFP:27226
Removal and InstallationEJS004GH
REMOVAL
1. Remove blower unit. Refer to ATC-125, "BLOWER UNIT" .
2. Separate blower unit.
3. Remove cooling hose, fan control amp. and blower fan.
INSTALLATION
Installation is basically the reverse order of removal.
CAUTION:
If retaining tabs are damaged while disassembling blower unit,
use 9 screws (27111-2Y000) to assemble blower unit.
RJIA0054E
RJIA0055E
RJIA0097E

HEATER & COOLING UNIT ASSEMBLY
ATC-131
C
D
E
F
G
H
I
K
L
MA
B
AT C

HEATER & COOLING UNIT ASSEMBLYPFP:27110
Removal and InstallationEJS000UT
REMOVAL
1. Use a refrigerant collecting equipment (for HFC-134a) to discharge refrigerant.
2. Drain coolant from cooling system. Refer to CO-9, "
Changing Engine Coolant" for QR engine or CO-31,
"Changing Engine Coolant" for YD engine.
3. Disconnect two heater hoses from heater core pipe.
4. Remove mounting bolt from low-pressure flexible hose.
CAUTION:
Cap or wrap the joint of the pipe with suitable material such
as vinyl tape to avoid the entry of air.
5. Remove the blower unit. Refer to ATC-125, "
BLOWER UNIT" .
6. Remove clips of vehicle harness from steering member.
7. Remove mounting nuts, and then remove instrument stay.
8. Remove mounting bolts from heater & cooling unit.
RJIA0060E
RJIA0061E
RJIA2444E

ATC-132
HEATER & COOLING UNIT ASSEMBLY

9. Remove steering member.
10. Remove heater & cooling unit.
CAUTION:
Cap or wrap the joint of the pipe with suitable material such as vinyl tape to avoid the entry of air.
INSTALLATION
Installation is basically the reverse order of removal.
CAUTION:

Replace the O-ring of the low-pressure flexible hose and the high-pressure pipe with a new one,
and then apply compressor oil to it when installing it.

When recharging refrigerant, check for leaks.
NOTE:
When filling radiator with coolant, refer to CO-9, "
Changing Engine Coolant" for QR engine or CO-31, "Chang-
ing Engine Coolant" for YD engine.
Disassembly and AssemblyEJS000UU
NOTE:
This illustration is for RHD models. The layout for LHD models is symmetrically opposite.
RJIA2404E

HEATER & COOLING UNIT ASSEMBLY
ATC-133
C
D
E
F
G
H
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L
MA
B
AT C

1. Cooler grommet 2. Screw 3. Heater pipe support
4. Screw 5. Expansion valve cover 6. Bolt
7. Expansion valve 8. Insulator 9. Evaporator
10. Slide door unit (Air mix door) 11. Evaporator cover 12. Screw
13. Screw 14. Air mix door motor 15. mode door motor
16. Screw 17. Ventilator door link 1 18. Ventilator door link 2
19. Ventilator door lever 20. Rod 21. Rod holder
22. Main link 23. Max. cool door lever 24. Defroster door lever
25. Screw 26. Foot duct (right) 27. Heater core
28. Heater core cover 29. Foot duct (left) 30. Intake sensor bracket
31. Intake sensor 32. Screw 33. Aspirator
34. Screw 35. Heater & cooling unit case (right) 36. Defroster door
37. Ventilator door 38. Max. cool door 39. Heater & cooling unit case (left)
RJIA0064J

ATC-136
HEATER CORE

HEATER COREPFP:27140
Removal and InstallationEJS004GJ
REMOVAL
1. Remove heater & cooling unit. Refer to ATC-131, "HEATER & COOLING UNIT ASSEMBLY" .
2. Remove heater pipe support.
3. Remove mounting screws, and then remove foot duct and
heater core cover.
4. Remove heater core from heater & cooling unit.
INSTALLATION
Installation is basically the reverse order of removal.
RJIA0069E

DUCTS AND GRILLES
ATC-139
C
D
E
F
G
H
I
K
L
MA
B
AT C

Removal of Adaptor
1. Remove heater & cooling unit. Refer to ATC-131, "HEATER & COOLING UNIT ASSEMBLY" .
2. Remove mounting screw and clip.
3. Slide adaptor toward vehicle front, and then remove adaptor.
Removal of Multi-box Duct
1. Remove instrument panel. Refer to IP-11, "Removal and Installation" .
2. Remove mounting screws, and then disconnect multi-box duct
from heater & cooling unit.
3. Remove mounting bolts, and then remove heater & cooling unit
bracket.
4. Remove multi-box duct from left side.
Removal of Foot Duct
1. Remove multi-box duct.
2. Remove mounting screws, and then remove foot duct.
RJIA2411E
RJIA2412E
RJIA0069E

REFRIGERANT LINES
ATC-143
C
D
E
F
G
H
I
K
L
MA
B
AT C

ComponentsEJS00287
Refer to page AT C - 5 , "Precautions for Refrigerant Connection" .
WITH GASOLINE ENGINE
NOTE:
This illustration is for RHD models. The blower unit and heater & cooling unit layouts for LHD models are sym-
metrically opposite.
RJIA2843E

ATC-144
REFRIGERANT LINES

WITH DIESEL ENGINE
NOTE:
This illustration is for RHD models. The blower unit and heater & cooling unit layouts for LHD models are sym-
metrically opposite.
Removal and Installation of CompressorEJS000V9
REMOVAL
With Gasoline Engine
RJIA2844E
RJIA3185E