Owner's Manual

HEATER & COOLING UNIT ASSEMBLY
MTC-81
C
D
E
F
G
H
I
K
L
M
A
B
MTC
Revision: March 2005 2005 Altima
HEATER & COOLING UNIT ASSEMBLY PFP:27110
Removal and Installation EJS002SY
REMOVAL
1. Discharge the refrigerant from the A/C system. Refer to MTC-89, "HFC-134a (R-134a) Service Proce-
dure" .
2. Drain the engine coolant from the cooling system. Refer to MA-15, "
DRAINING ENGINE COOLANT"
(QR25DE) or MA-22, "DRAINING ENGINE COOLANT" (VQ35DE).
3. Remove the wiper motor and linkage. Refer to WW-28, "
REMOVAL" .
4. Remove the fasteners and the cowl top. Refer to EI-19, "
Removal and Installation" .
5. Disconnect the heater hoses from the heater core pipes.
CAUTION:
Cap or wrap the joint of the pipe with suitable material such as vinyl tape to avoid entry of contam-
inants.
6. Disconnect the refrigerant lines from the evaporator. Refer to MTC-89, "
REFRIGERANT LINES" .
CAUTION:
Cap or wrap the joint of the pipe with suitable material such as vinyl tape to avoid entry of contam-
inants.
7. Remove the steering member. Refer to IP-10, "
INSTRUMENT PANEL ASSEMBLY" .
8. Remove the blower unit. Refer to MTC-78, "
Removal and Installation" .
9. Disconnect the air mix door motor connector.
10. Disconnect the mode door motor connector.
11. Remove the heater and cooling unit.
INSTALLATION
Installation is in the reverse order of removal.
● Fill the radiator with the specified water and coolant mixture. Refer to MA-16, "REFILLING ENGINE
COOLANT" (QR25DE) or MA-23, "REFILLING ENGINE COOLANT" (VQ35DE).
● Recharge the A/C system. Refer to MTC-89, "HFC-134a (R-134a) Service Procedure" .
WJIA0110E
WJIA0200E