Qashqai J11. Heater & Air conditioning System - part 5

 

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Qashqai J11. Heater & Air conditioning System - part 5

 

 

REFRIGERANT

HA-65

< BASIC INSPECTION >

[TYPE 2]

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Charge Refrigerant

INFOID:0000000010501557

WARNING:

• Always use HFO-1234yf for A/C refrigerant. If CFC-12 or HFC-134a is accidentally charged, compres-

sor is damaged due to insufficient lubrication.

• Always observe and follow precautions described on refrigerant container. Incorrect handling may

result in an explosion of refrigerant container, frostbite, or the loss of eyesight.

• Never breathe A/C refrigerant and lubricant vapor or mist. Exposure my irritate eyes, nose, or throat.
• Never allow HFO-1234yf to be exposed to an open flame or others because it generates poisonous

gas when in contact with high temperature objects. Keep workshop well ventilated.

1.

Connect recovery/recycling/recharging equipment to the A/C service valve.

2.

Operate recovery/recycling/recharging equipment, and evacuate air from A/C system for 25 minutes or
more.

CAUTION:

Evacuate air for 15 minutes or more if the parts are replaced.

3.

Check the airtightness of A/C system for 25 minutes or more. If pressure rises more than the specified
level, charge A/C system with approximately 200 g (0.4 lb) refrigerant and check that there is no refriger-
ant leakage. Refer to 

HA-63, "Leak Test"

.

CAUTION:

Check the airtightness for 15 minutes or more if the parts are replaced.

4.

If parts other than compressor are replaced, fill compressor lubricant according to parts that are replaced.

5.

Charge the specified amount of refrigerant to A/C system.

6.

Check that A/C system operates normally.

7.

Disconnect recovery/recycling/recharging equipment. (Collect the refrigerant from the high-pressure hose
and low-pressure hose of recovery/recycling/recharging equipment.)

8.

Install A/C service valve cap.

9.

Refrigerant charge is complete.

HA-66

< BASIC INSPECTION >

[TYPE 2]

LUBRICANT

LUBRICANT

Description

INFOID:0000000010501558

MAINTENANCE OF LUBRICANT LEVEL

The compressor lubricant is circulating in the system together with the refrigerant. It is necessary to fill com-
pressor with lubricant when replacing A/C system parts or when a large amount of refrigerant leakage is
detected. It is important to always maintain lubricant level within the specified level. Otherwise, the following
conditions may occur.
• Insufficient lubricant amount: Stuck compressor
• Excessive lubricant amount: Insufficient cooling (caused by insufficient heat exchange)

Inspection

INFOID:0000000010501559

If a compressor is malfunctioning (internal noise, insufficient cooling), check the compressor oil.

1.

COMPRESSOR OIL JUDGMENT

1.

Remove the compressor. Refer to 

HA-74, "Removal and Installation"

.

2.

Sample a compressor oil and judge on the figure.

Judgement result 1>>Replace compressor only.
Judgement result 2>>Replace compressor and condenser & liquid tank assembly.

Perform Lubricant Return Operation

INFOID:0000000010501560

CAUTION:

If a large amount of refrigerant or lubricant leakage is detected, never perform lubricant return opera-
tion.

1.

Start the engine and set to the following conditions.
• Engine speed: Idling to 1,200 rpm
• A/C switch: ON
• Fan speed: Maximum speed set
• Intake door position: Recirculation
• Temperature setting: Full cold

2.

Perform lubricant return operation for approximately 10 minutes.

3.

Stop the engine.

4.

Lubricant return operation is complete.

Lubricant Adjusting Procedure for Components Replacement Except Compressor

INFOID:0000000010501561

Fill with lubricant for the amount that is calculated according to the following conditions.
Example: Lubricant amount to be added when replacing evaporator and condenser&liquid tank assembly [m
(Imp fl oz.)] = 35 (1.2) + 20 (0.7) + 

α

Name

: ND-OIL12

JSIIA0927GB

LUBRICANT

HA-67

< BASIC INSPECTION >

[TYPE 2]

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Lubricant Adjusting Procedure for Compressor Replacement

INFOID:0000000010501562

1.

Drain lubricant from removed compressor and measure lubricant amount.
• Remove drain bolt (A), and then drain lubricant from drain

port.

• Measure total amount of lubricant that is drained from

removed compressor.

2.

Drain lubricant from a new compressor that is calculated accord-
ing to the following conditions.

CAUTION:

If lubricant amount that is drained from removed compressor is less than 60 m  (2.1 Imp fl oz.),
perform calculation by setting “D” as 40 m  (1.4 Imp fl oz.).

Example: Lubricant amount to be drained from a new compressor when replacing compressor and con-
denser & liquid tank assembly [m  (Imp fl oz.)] [D = 60 (2.1), 

α

 = 5 (0.2)]

110 (3.9) 

 [60 (1.6) + 20 (0.7) + 5 (0.2)] = 35 (1.2)

3.

Tighten drain bolt to the specified torque.

Conditions

Lubricant amount to be added to A/C system

m

 (Imp fl oz.)

Replace evaporator

35 (1.2) 

Replace condenser & liquid tank assembly

20 (0.7)

Refrigerant leakage is detected

Large amount leakage

30 (1.1)

Small amount leakage

Lubricant amount that is recycled together with refrigerant during recycle operation

α

JMIIA3527ZZ

Amount to be drained (A) [m  (Imp fl oz.)] = F 

 (D 

+ S + R + 

α

)

F

: Lubricant amount that a new compressor 
contains [110 (3.9)]

D

: Lubricant amount that is drained from re-
moved compressor

S

: Lubricant amount that remains inside of re-
moved compressor [20 (0.7)]

R

: Lubricant amount to be added according to 
components that are removed except com-
pressor

α

: Lubricant amount that is recycled together 
with refrigerant during recycle operation

Conditions

Lubricant amount to be added to A/C system

m

 (Imp fl oz.)

Replace evaporator

35 (1.2)

Replace condenser & liquid tank assembly

20 (0.7)

JPIIA1455GB

HA-68

< BASIC INSPECTION >

[TYPE 2]

LUBRICANT

4.

Install compressor and check the operation.

Specified torque

: 30 N·m (306 kg-m, 22 ft-lb)

PERFORMANCE TEST

HA-69

< BASIC INSPECTION >

[TYPE 2]

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PERFORMANCE TEST

Inspection

INFOID:0000000010501563

INSPECTION PROCEDURE

1.

Connect recovery/recycling/recharging equipment (for HFO-1234yf) or manifold gauge.

2.

Start the engine, and set to the following condition.

Test condition

3.

Maintain test condition until A/C system becomes stable. (More than 15 minutes)

4.

Check that test results of “recirculating-to-discharge air temperature” and “ambient air temperature-to-
operating pressure” are within the specified value.

5.

When test results are within the specified value, inspection is complete.
If any of test result is out of the specified value, perform diagnosis by gauge pressure. Refer to 

HA-71,

"Symptom Table"

.

RECIRCULATING-TO-DISCHARGE AIR TEMPERATURE TABLE

AMBIENT AIR TEMPERATURE-TO-OPERATING PRESSURE TABLE

Surrounding condition

Indoors or in the shade (in a well-ventilated place)

Vehicle condition

Door

Closed

Door glass

Full open

Hood

Open

Engine speed

Idle speed

A/C condition

Temperature control switch or dial

Full cold

A/C switch

ON

Air outlet

VENT (ventilation)

Intake door position

Recirculation

Fan speed

Maximum speed set

Inside air (Recirculating air) at blower assembly inlet

Discharge air temperature from center ventilator

°

C (

°

F)

Relative humidity

%

Air temperature

°

C (

°

F)

50 – 60

15 (59)

2.4 – 3.9 (36 – 39)

20 (68)

8.4 – 10.4 (47 – 51)

25 (77)

13.0 – 15.5 (55 – 66)

30 (86)

16.9 – 19.8 (62 – 68)

60 – 70

15 (59)

3.9 – 5.3 (39 – 42)

20 (68)

10.4 – 12.5 (51 – 55)

25 (77)

15.5 – 18.0 (60 – 64)

30 (86)

19.8 – 22.7 (68 – 73)

HA-70

< BASIC INSPECTION >

[TYPE 2]

PERFORMANCE TEST

Fresh air

High-pressure (Discharge side)

kPa (bar, kg/cm

2

, psi)

Low-pressure (Suction side)

kPa (bar, kg/cm

2

, psi)

Relative humidity

%

Air temperature

°

C (

°

F)

50 – 70

25 (77)

870 – 1,070

(8.7 – 10.7, 8.9 – 10.9, 126.1 – 

155.2)

200 – 240

(2.0 – 2.4, 2.0 – 2.4, 29.0 – 34.8)

30 (86)

940 -– 1,150

(9.4 – 11.5, 9.6 – 11.7, 136.3 – 

166.8)

210 – 250

(2.1 – 2.5, 2.1 – 2.6, 30.5 – 36.3)

35 (95)

1,100 – 1,440

(11.0 – 14.4, 11.2 – 14.7, 159.5 – 

208.8)

240 – 300

(2.4 – 3.0, 2.4 – 3.1, 34.8 – 43.5)

40 (104)

1,300 – 1,580

(13.0 – 15.8, 13.3 – 16.1, 188.5 – 

229.1)

290 – 350

(2.9 – 3.5, 3.0 – 3.6, 42.1 – 50.8)

REFRIGERATION SYSTEM SYMPTOMS

HA-71

< SYMPTOM DIAGNOSIS >

[TYPE 2]

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SYMPTOM DIAGNOSIS

REFRIGERATION SYSTEM SYMPTOMS

Trouble Diagnosis For Unusual Pressure

INFOID:0000000010501564

Diagnose using a manifold gauge whenever system’s high and/or low side pressure(s) is/are unusual. The
marker above the gauge scale in the following tables indicates the standard (usual) pressure range. Refer to
above table (Ambient air temperature-to-operating pressure table) since the standard (usual) pressure, how-
ever, differs from vehicle to vehicle.

Symptom Table

INFOID:0000000010501565

Gauge indication

Refrigerant cycle

Probable cause

Corrective action

Both high- and low-pressure sides 
are too high.

The pressure returns to nor-
mal soon after sprinkling wa-
ter on condenser.

Overfilled refrigerant.

Collect all refrigerant, evacuate 
refrigerant cycle again, and 
then refill it with the specified 
amount of refrigerant.

Air flow to condenser is insuf-
ficient.

Insufficient condenser cooling 
performance.
• Poor fan rotation of radiator 

and condenser.

• Improper installation of air 

guide.

• Clogged or dirty condenser 

fins.

• Repair or replace malfunc-

tioning parts.

• Clean and repair condenser 

fins.

When compressor is stopped, 
a high-pressure reading 
quickly drops by approximate-

ly 196 kPa (1.96bar, 2 kg/cm

2

28 psi). It then gradually de-
creases.

Air mixed in refrigerant cycle.

Collect all refrigerant, evacuate 
refrigerant cycle again, and 
then refill it with the specified 
amount of refrigerant.

• Low-pressure pipe is cooler 

than the outlet of evapora-
tor.

• Low-pressure pipe is frost-

ed.

Expansion valve opened too 
much (excessive flow of refrig-
erant).

Replace expansion valve.

High-pressure side is excessively 
high and low-pressure side is too 
low.

High-pressure pipe and upper 
side of condenser become 
hot, however, liquid tank does 
not become so hot.

Clogged or crushed high-pres-
sure pipe located between 
compressor and condenser.

Repair or replace the malfunc-
tioning parts.

High-pressure side is too low and 
low-pressure side is too high.

• The readings of both sides 

become equal soon after 
compressor operation 
stops.

• There is no temperature dif-

ference between high- and 
low-pressure sides.

Malfunction in compressor sys-
tem (insufficient compressor 
pressure operation).
• Damage or breakage of 

valve.

• Malfunctioning gaskets.

Replace compressor.

AC359A

AC360A

AC356A

HA-72

< SYMPTOM DIAGNOSIS >

[TYPE 2]

REFRIGERATION SYSTEM SYMPTOMS

Both high- and low-pressure sides 
are too low.

• The area around evapora-

tor outlet does not become 
cold.

• The area around evapora-

tor inlet becomes frosted.

Clogged expansion valve.
• Breakage of temperature 

sensor.

• Clogging by foreign material.

Eliminate foreign material from 
expansion valve, or replace it.

• There is a temperature dif-

ference between the areas 
around outlet and inlet 
pipes of liquid tank.

• Liquid tank becomes frost-

ed.

Malfunction in inner liquid tank 
(clogged strainer).

Replace condenser & liquid 
tank assembly.

Evaporator becomes frosted.

Clogged or crushed low-pres-
sure pipe.

Repair or replace malfunction-
ing parts.

Malfunction in intake sensor.

Check intake sensor system. 
Refer to 

HAC-82, "Diagnosis 

Procedure"

 (AUTOMATIC AIR 

CONDITIONING SYSTEM) or 

HAC-191, "Diagnosis Proce-
dure"

 (MANUAL AIR CONDI-

TIONING SYSTEM).

There is a small temperature 
difference between the high 
and low pressure pipes for re-
frigerant cycle.

• Shortage of refrigerant.
• Leakage of refrigerant.

• Check for leakage.
• Collect all refrigerant, evacu-

ate refrigerant cycle again, 
and then refill it with the spec-
ified amount of refrigerant.

Low-pressure side sometimes be-
comes negative.

• Sometimes the area 

around evaporator outlet 
does not become cold.

• Sometimes the area 

around evaporator inlet is 
frosted.

• Icing caused by the mixing of 

water in cooler cycle.

• Deteriorated dryer in liquid 

tank.

• Collect all refrigerant.
• Evacuate refrigerant cycle 

completely, and then refill it 
with the specified amount of 
refrigerant. At this time, al-
ways replace condenser & 
liquid tank assembly.

Hunting in high-pressure side.

There is no temperature dif-
ference between high- and 
low-pressure sides.

Malfunctioning variable valve 
in compressor.

• Replace compressor.
• Check ECV system. Refer to 

HAC-114, "Diagnosis Proce-
dure"

 (AUTOMATIC AIR 

CONDITIONING SYSTEM), 

HAC-211, "Diagnosis Proce-
dure"

 (MANUAL AIR CONDI-

TIONING SYSTEM).

Gauge indication

Refrigerant cycle

Probable cause

Corrective action

AC353A

AC354A

NOISE

HA-73

< SYMPTOM DIAGNOSIS >

[TYPE 2]

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NOISE

Symptom Table

INFOID:0000000010501566

Symptom

Noise source

Probable cause

Corrective action

Unusual noise from compressor 
when A/C is ON.

Inside of compressor

Wear, breakage, or clogging of foreign 
material in inner parts.

Check compressor oil. Re-
fer to 

HA-66, "Inspection"

.

Magnet clutch

Contact of clutch disc with pulley.

Check clearance between 
clutch disc and pulley. Refer 
to 

HA-75, "Inspection"

.

Compressor body

Loosened compressor mounting bolts.

Check bolts for tightness. 
Refer to 

HA-74, "Exploded 

View"

.

Unusual noise from cooler piping.

Cooler piping (pipe and 
flexible hose)

Improper installation of clip and brack-
et.

Check the installation condi-
tion of the cooler piping. Re-
fer to 

HA-76, "Exploded 

View"

.

Unusual noise from expansion 
valve when A/C is ON.

Expansion valve

Shortage of refrigerant.

• Check for leakage.
• Collect all refrigerant, 

evacuate refrigerant cycle 
again, and then refill it 
with the specified amount 
of refrigerant.

Wear, breakage, or clogging of foreign 
material in inner parts.

Eliminate foreign material 
from expansion valve, or re-
place it.

Unusual noise from belt.

Loosened belt

Check belt tension. Refer to 

EM-274, "Inspection"

 (K9K 

engine models), 

EM-373, 

"Checking"

 (R9M engine 

models).

Internal compressor parts get locked

Replace compressor.

HA-74

< REMOVAL AND INSTALLATION >

[TYPE 2]

COMPRESSOR

REMOVAL AND INSTALLATION

COMPRESSOR

Exploded View

INFOID:0000000010501532

REMOVAL

Removal and Installation

INFOID:0000000010501533

CAUTION:

Perform lubricant return operation before each refrigeration system disassembly. However, if a large
amount of refrigerant or lubricant is detected, never perform lubricant return operation. Refer to 

HA-

66, "Perform Lubricant Return Operation"

.

REMOVAL

1.

Use a refrigerant collecting equipment (for HFO-1234yf) to discharge the refrigerant. Refer to 

HA-64,

"Recycle Refrigerant"

.

2.

Remove alternator. Refer to the following items.
• K9K engine models: Refer to 

CHG-30, "K9K : Removal and Installation"

.

• R9M engine models (with stop/start system): Refer to 

CHG-31, "R9M : Removal and Installation"

.

• R9M engine models (without stop/start system): Refer to 

CHG-53, "R9M : Removal and Installation"

.

3.

Remove mounting bolts, and then disconnect low-pressure flexible hose and high-pressure flexible hose
from the compressor.

CAUTION:

Cap or wrap the joint of the A/C piping and compressor with suitable material such as vinyl tape to
avoid the entry of air.

4.

Disconnect compressor harness connectors.

5.

Remove mounting bolts, and then remove compressor form the vehicle.

INSTALLATION

Note the following items, and then install in the reverse order of removal.

CAUTION:

• Replace O-rings with new ones. Then apply compressor oil to them when installing.
• Perform lubricant adjusting procedure before installing new compressor. Refer to 

HA-67, "Lubricant

Adjusting Procedure for Compressor Replacement"

.

• Check for leakages when recharging refrigerant. Refer to 

HA-63, "Leak Test"

.

1.

Compressor

: N·m (kg-m, ft-lb)

JMIIA3526GB

COMPRESSOR

HA-75

< REMOVAL AND INSTALLATION >

[TYPE 2]

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• Check tension of the drive belt after installing compressor. Refer to 

EM-16, "Checking"

Inspection

INFOID:0000000010501534

CHECK DISC TO PULLEY CLEARANCE

Check the clearance (B) between pulley assembly (1) and clutch
disc (2) along the entire periphery with a feeler gauge (A).

CAUTION:

Replace compressor if the specified clearance is not obtained,
replace adjusting spacer and readjust.

Clearance

: Refer to 

HA-92, "Compressor"

.

JSIIA0087ZZ

HA-76

< REMOVAL AND INSTALLATION >

[TYPE 2]

COOLER PIPE AND HOSE

COOLER PIPE AND HOSE

Exploded View

INFOID:0000000010501535

K9K engine models

JMIIA3516GB

1.

A/C unit assembly

2.

O-ring

3.

Internal heat exchanger pipe

4.

High-pressure pipe 1

5.

Refrigerant pressure sensor

6.

Condenser & liquid tank assembly

7.

High-pressure pipe 2

8.

High-pressure flexible hose

9.

Compressor

10. Low-pressure flexible hose

: Always replace after every disassembly.

: N·m (kg-m, in-lb)

: N·m (kg-m, ft-lb)

COOLER PIPE AND HOSE

HA-77

< REMOVAL AND INSTALLATION >

[TYPE 2]

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R9M engine models

HIGH-PRESSURE FLEXIBLE HOSE

HIGH-PRESSURE FLEXIBLE HOSE : Removal and Installation

INFOID:0000000010501536

CAUTION:

Perform lubricant return operation before each refrigeration system disassembly. However, if a large
amount of refrigerant or lubricant is detected, never perform lubricant return operation. Refer to 

HA-

66, "Perform Lubricant Return Operation"

.

REMOVAL

1.

Use a refrigerant collecting equipment (for HFO-1234yf) to discharge the refrigerant. Refer to 

HA-64,

"Recycle Refrigerant"

.

2.

Remove mounting bolt, and then disconnect high-pressure flexible hose from the high-pressure pipe 2.

CAUTION:

JMIIA3518GB

1.

A/C unit assembly

2.

O-ring

3.

Internal heat exchanger pipe

4.

High-pressure pipe 1

5.

Refrigerant pressure sensor

6.

Condenser

7.

High-pressure pipe 2

8.

High-pressure flexible hose

9.

Compressor

10. Low-pressure flexible hose

: Always replace after every disassembly.

: N·m (kg-m, in-lb)

HA-78

< REMOVAL AND INSTALLATION >

[TYPE 2]

COOLER PIPE AND HOSE

Cap or wrap the joint of the A/C piping with suitable material such as vinyl tape to avoid the entry
of air.

3.

Remove mounting bolt, and then disconnect high-pressure flexible hose from the compressor.

CAUTION:

Cap or wrap the joint of the A/C piping and compressor with suitable material such as vinyl tape to
avoid the entry of air.

4.

Remove high-pressure flexible hose from the vehicle.

INSTALLATION

Note the following items, and then install in the reverse order of removal.

CAUTION:

• Replace O-rings with new ones. Then apply compressor oil to them when installing.
• Check for leakages when recharging refrigerant. Refer to 

HA-63, "Leak Test"

.

LOW-PRESSURE FLEXIBLE HOSE

LOW-PRESSURE FLEXIBLE HOSE : Removal and Installation

INFOID:0000000010501537

CAUTION:

Perform lubricant return operation before each refrigeration system disassembly. However, if a large
amount of refrigerant or lubricant is detected, never perform lubricant return operation. Refer to 

HA-

66, "Perform Lubricant Return Operation"

.

REMOVAL

1.

Use a refrigerant collecting equipment (for HFO-1234yf) to discharge the refrigerant. Refer to 

HA-64,

"Recycle Refrigerant"

.

2.

Remove mounting bolt, and then disconnect low-pressure flexible hose from internal heat exchanger pipe.

CAUTION:

Cap or wrap the joint of the A/C piping with suitable material such as vinyl tape to avoid the entry
of air.

3.

Remove mounting bolt, and then disconnect low-pressure flexible hose from the compressor.

CAUTION:

Cap or wrap the joint of the A/C piping and compressor with suitable material such as vinyl tape to
avoid the entry of air.

4.

Remove low-pressure flexible hose from the vehicle.

INSTALLATION

Note the following items, and then install in the reverse order of removal.

CAUTION:

• Replace O-rings with new ones. Then apply compressor oil to them when installing.
• Check for leakages when recharging refrigerant. Refer to 

HA-63, "Leak Test"

.

INTERNAL HEAT EXCHANGER PIPE

INTERNAL HEAT EXCHANGER PIPE : Removal and Installation

INFOID:0000000010501538

CAUTION:

Perform lubricant return operation before each refrigeration system disassembly. However, if a large
amount of refrigerant or lubricant is detected, never perform lubricant return operation. Refer to 

HA-

66, "Perform Lubricant Return Operation"

.

REMOVAL

1.

Use a refrigerant collecting equipment (for HFO-1234yf) to discharge the refrigerant. Refer to 

HA-64,

"Recycle Refrigerant"

.

2.

Disconnect fixing clip, and then remove insulator upper side.

3.

Remove mounting bolt, and then disconnect internal heat exchanger pipe from expansion valve.

CAUTION:

Cap or wrap the joint of the A/C piping and expansion valve with suitable material such as vinyl
tape to avoid the entry of air.

4.

Remove mounting bolts, and then disconnect high-pressure pipe 1 and low-pressure flexible hose from
internal heat exchanger pipe.

CAUTION:

COOLER PIPE AND HOSE

HA-79

< REMOVAL AND INSTALLATION >

[TYPE 2]

C

D

E

F

G

H

J

K

L

M

A

B

HA

N

O

P

Cap or wrap the joint of the A/C piping with suitable material such as vinyl tape to avoid the entry
of air.

5.

Remove mounting bolt, and then remove internal heat exchanger pipe.

INSTALLATION

Note the following items, and then install in the reverse order of removal.

CAUTION:

• Replace O-rings with new ones. Then apply compressor oil to them when installing.
• Check for leakages when recharging refrigerant. Refer to 

HA-63, "Leak Test"

.

HIGH-PRESSURE PIPE 1

HIGH-PRESSURE PIPE 1 : Removal and Installation

INFOID:0000000010501539

CAUTION:

Perform lubricant return operation before each refrigeration system disassembly. However, if a large
amount of refrigerant or lubricant is detected, never perform lubricant return operation. Refer to 

HA-

66, "Perform Lubricant Return Operation"

.

REMOVAL

1.

Use a refrigerant collecting equipment (for HFO-1234yf) to discharge the refrigerant. Refer to 

HA-64,

"Recycle Refrigerant"

.

2.

Remove front bumper fascia assembly. Refer to 

EXT-19, "Removal and Installation"

.

3.

Remove mounting bolt, and then disconnect high-pressure pipe 1 from internal heat exchanger pipe.

CAUTION:

Cap or wrap the joint of the A/C piping with suitable material such as vinyl tape to avoid the entry
of air.

4.

Remove mounting bolt, and then disconnect high-pressure pipe 1 from the condenser & liquid tank
assembly.

CAUTION:

Cap or wrap the joint of the A/C piping and condenser with suitable material such as vinyl tape to
avoid the entry of air.

5.

Disconnect refrigerant pressure sensor harness connector.

6.

Remove mounting bolt, and then remove high-pressure pipe 1 from the vehicle.

INSTALLATION

Note the following items, and then install in the reverse order of removal.

CAUTION:

• Replace O-rings with new ones. Then apply compressor oil to them when installing.
• Check for leakages when recharging refrigerant. Refer to 

HA-63, "Leak Test"

.

HIGH-PRESSURE PIPE 2

HIGH-PRESSURE PIPE 2 : Removal and Installation

INFOID:0000000010501540

CAUTION:

Perform lubricant return operation before each refrigeration system disassembly. However, if a large
amount of refrigerant or lubricant is detected, never perform lubricant return operation. Refer to 

HA-

66, "Perform Lubricant Return Operation"

.

REMOVAL

1.

Use a refrigerant collecting equipment (for HFO-1234yf) to discharge the refrigerant. Refer to 

HA-64,

"Recycle Refrigerant"

.

2.

Remove front bumper fascia assembly. Refer to 

EXT-19, "Removal and Installation"

.

3.

Remove mounting bolt, and then disconnect high-pressure pipe 2 from high-pressure flexible hose.

CAUTION:

Cap or wrap the joint of the A/C piping and expansion valve with suitable material such as vinyl
tape to avoid the entry of air.

4.

Remove mounting bolt, and then disconnect high-pressure pipe 2 from condenser & liquid tank assembly.

CAUTION:

HA-80

< REMOVAL AND INSTALLATION >

[TYPE 2]

COOLER PIPE AND HOSE

Cap or wrap the joint of the A/C piping and condenser with suitable material such as vinyl tape to
avoid the entry of air.

5.

Remove high-pressure pipe 2 from the vehicle.

INSTALLATION

Note the following items, and then install in the reverse order of removal.

CAUTION:

• Replace O-rings with new ones. Then apply compressor oil to them when installing.
• Check for leakages when recharging refrigerant. Refer to 

HA-63, "Leak Test"

.

REFRIGERANT PRESSURE SENSOR

REFRIGERANT PRESSURE SENSOR : Removal and Installation

INFOID:0000000010501541

CAUTION:

Perform lubricant return operation before each refrigeration system disassembly. However, if a large
amount of refrigerant or lubricant is detected, never perform lubricant return operation. Refer to 

HA-

66, "Perform Lubricant Return Operation"

.

REMOVAL

1.

Use a refrigerant collecting equipment (for HFO-1234yf) to discharge the refrigerant. Refer to 

HA-64,

"Recycle Refrigerant"

.

2.

Remove front bumper fascia assembly. Refer to 

EXT-19, "Removal and Installation"

.

3.

Clean refrigerant pressure sensor and its surrounding area, and then remove dust and rust from refriger-
ant pressure sensor.

CAUTION:

Be sure to clean carefully.

4.

Disconnect refrigerant pressure sensor connector.

5.

Use a adjustable wrench or other tool to hold the refrigerant pressure sensor mounting block, and then
remove the refrigerant pressure sensor from high-pressure pipe 1.

CAUTION:

• Never to damage high-pressure pipe 1.
• Cap or wrap the joint of the A/C piping with suitable material such as vinyl tape to avoid the entry

of air.

INSTALLATION

Note the following items, and then install in the reverse order of removal.

CAUTION:

• Replace O-ring with new one. Then apply compressor oil to them when installing.
• Check for leakages when recharging refrigerant. Refer to 

HA-63, "Leak Test"

.

 

 

 

 

 

 

 

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