Nissan Altima L32. Instruction — part 1530

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HEATER & COOLING UNIT ASSEMBLY

HEATER & COOLING UNIT ASSEMBLY

Removal and Installation

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COMPONENTS

REMOVAL

1. Discharge the refrigerant from the A/C system. Refer to

HA-24, "HFC-134a (R-134a) Service Procedure"

.

2. Drain the engine coolant from the cooling system. Refer to

CO-12, "Changing Engine Coolant"

(QR25DE),

CO-35, "Changing Engine Coolant"

(VQ35DE).

3. Disconnect the negative battery terminal.
4. Remove the wiper motor and linkage. Refer to

WW-116, "FRONT WIPER DRIVE ASSEMBLY : Removal

and Installation"

.

5. Remove the upper cowl (for VQ35DE only). Refer to

EXT-18, "Removal and Installation"

.

6. Remove the strut tower bar (for VQ35DE only). Refer to

FSU-12, "Exploded View"

.

7. Remove the lower RH cowl (for VQ35DE only). Refer to

EXT-18, "Removal and Installation"

.

8. Disconnect the heater hoses from the heater core pipes.

CAUTION:

Cap or wrap the pipe joint with a suitable material such as vinyl tape to avoid the entry of contam-

inants into the system.

9. Disconnect the refrigerant lines from the expansion valve. Refer to

HA-31, "Component"

.

CAUTION:

Cap or wrap the line joint with a suitable material such as vinyl tape to avoid the entry of contami-

nants into the system.

10. Remove the instrument panel assembly. Refer to

IP-12, "Removal and Installation"

.

11. Remove the steering column assembly. Refer to

ST-14, "Removal and Installation"

.

12. Disconnect the drain hose.
13. Remove the heater and cooling unit assembly attached to the steering member as one assembly from the

vehicle.

1.

Steering member

2.

Heater and cooling unit

3.

Blower unit

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HEATER & COOLING UNIT ASSEMBLY

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14. Remove the blower unit from the heater and cooling unit and steering member assembly.
15. Remove the heater and cooling unit from the steering member.

INSTALLATION

Installation is in the reverse order of removal.

• Fill the radiator with the specified water and coolant mixture. Refer to

MA-12, "Fluids and Lubricants"

.

• Recharge the A/C system. Refer to

HA-24, "HFC-134a (R-134a) Service Procedure"

.

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BLOWER UNIT

BLOWER UNIT

Removal and Installation

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COMPONENTS

REMOVAL

1. Remove the heater and cooling unit assembly. Refer to

VTL-12, "Removal and Installation"

.

2. Disconnect the blower motor connector.
3. Remove the screws from the blower unit, then remove the blower unit.

INSTALLATION

Installation is in the reverse order of removal.

1.

Heater and cooling unit

2.

Blower unit

⇐

Front

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BLOWER MOTOR

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BLOWER MOTOR

Removal and Installation

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REMOVAL

1. Remove the glove box. Refer to

IP-12, "Removal and Installation"

.

2. Disconnect the blower motor connector (1).
3. Remove the three blower motor screws (A) and remove the

blower motor from the blower unit.

INSTALLATION

Installation is in the reverse order of removal.

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