Content .. 6 7 8 9 ..

Qashqai J11. Heater & Air conditioning System - part 8

LUBRICANT

HA-113

< BASIC INSPECTION >

[TYPE 3]

LUBRICANT

Description

INFOID:0000000010704942

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. Or otherwise, the following
conditions may occur.
• Insufficient lubricant amount: Stuck compressor
• Excessive lubricant amount: Insufficient cooling (caused by insufficient heat exchange)

Inspection

INFOID:0000000010704943

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

COMPRESSOR OIL JUDGMENT

Remove the compressor. Refer to

HA-121, "Removal and Installation"

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:0000000010704944

CAUTION:

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

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

Perform lubricant return operation for approximately 10 minutes.

Stop the engine.

Lubricant return operation is complete.

Lubricant Adjusting Procedure for Components Replacement Except Compressor

INFOID:0000000010704945

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 [m (Imp fl
oz)] = 45 (1.6) + 15 (0.5) +

Name

: ND-OIL8

JSIIA0927GB

HA-114

< BASIC INSPECTION >

[TYPE 3]

LUBRICANT

LUBRICANT

Description

INFOID:0000000010704942

MAINTENANCE OF LUBRICANT LEVEL

Inspection

INFOID:0000000010704943

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

COMPRESSOR OIL JUDGMENT

Remove the compressor. Refer to

HA-122, "Removal and Installation"

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:0000000010704944

CAUTION:

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

Perform lubricant return operation for approximately 10 minutes.

Stop the engine.

Lubricant return operation is complete.

Lubricant Adjusting Procedure for Components Replacement Except Compressor

INFOID:0000000010704945

Name

: ND-OIL8

JSIIA0927GB

LUBRICANT

HA-115

< BASIC INSPECTION >

[TYPE 3]

Lubricant Adjusting Procedure for Compressor Replacement

INFOID:0000000010704946

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.

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),

= 5 (0.2)]

90 (3.2)

−

[60 (2.1) + 20 (0.7) + 30 (1.1) + 5 (0.2)] =

−

25 (

−

0.9)

Tighten drain bolt to the specified torque

Conditions

Lubricant amount to be added to A/C system

(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

JMIIA3527ZZ

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

−

(D +

S + R +

)

: Lubricant amount that a new compressor con-
tains [90 (3.2)]

: Lubricant amount that is drained from re-
moved compressor

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

: Lubricant amount to be added according to
components that are removed except compres-
sor

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

Conditions

Lubricant amount to be added to A/C system

(Imp fl oz)

Replace evaporator

45 (1.6)

Replace condenser & liquid tank

30 (1.1)

JPIIA1455GB

HA-116

< BASIC INSPECTION >

[TYPE 3]

PERFORMANCE TEST

PERFORMANCE TEST

Inspection

INFOID:0000000010704947

INSPECTION PROCEDURE

Connect recovery/recycling/recharging equipment (for HFC-134a) or manifold gauge.

Start the engine, and set to the following condition.

Test condition

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

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

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-118,

"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

Air outlet

VENT (ventilation)

Intake door position

Recirculation

Fan (blower) speed

Maximum speed set

Inside air (Recirculating air) at blower assembly inlet

Discharge air temperature from center ventilator

C (

Relative humidity

Air temperature

C (

50 – 60

15 (59)

5.1 – 6.7 (42 – 44)

20 (68)

10.3 – 12.3 (51 – 54)

25 (77)

14.2 – 16.7 (58 – 62)

30 (86)

17.4 – 20.2 (63 – 68)

60 – 70

15 (59)

6.7 – 8.3 (44 – 47)

20 (68)

12.3 – 14.4 (54 – 58)

25 (77)

16.7 – 19.1 (62 – 66)

30 (86)

20.2 – 23.0 (68 – 73)

PERFORMANCE TEST

HA-117

< BASIC INSPECTION >

[TYPE 3]

PERFORMANCE TEST

Inspection

INFOID:0000000010704947

INSPECTION PROCEDURE

Connect recovery/recycling/recharging equipment (for HFC-134a) or manifold gauge.

Start the engine, and set to the following condition.

Test condition

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

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

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-119,

"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

Air outlet

VENT (ventilation)

Intake door position

Recirculation

Fan (blower) speed

Maximum speed set

Inside air (Recirculating air) at blower assembly inlet

Discharge air temperature from center ventilator

C (

Relative humidity

Air temperature

C (

50 – 60

15 (59)

5.1 – 6.7 (42 – 44)

20 (68)

10.3 – 12.3 (51 – 54)

25 (77)

14.2 – 16.7 (58 – 62)

30 (86)

17.4 – 20.2 (63 – 68)

60 – 70

15 (59)

6.7 – 8.3 (44 – 47)

20 (68)

12.3 – 14.4 (54 – 58)

25 (77)

16.7 – 19.1 (62 – 66)

30 (86)

20.2 – 23.0 (68 – 73)

HA-118

< SYMPTOM DIAGNOSIS >

[TYPE 3]

REFRIGERATION SYSTEM SYMPTOMS

SYMPTOM DIAGNOSIS

REFRIGERATION SYSTEM SYMPTOMS

Trouble Diagnosis For Unusual Pressure

INFOID:0000000010707266

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:0000000010707267

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 (1.96 bar, 2 kg/

, 28 psi). It then gradually

decreases.

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

REFRIGERATION SYSTEM SYMPTOMS

HA-119

< SYMPTOM DIAGNOSIS >

[TYPE 3]

SYMPTOM DIAGNOSIS

REFRIGERATION SYSTEM SYMPTOMS

Trouble Diagnosis For Unusual Pressure

INFOID:0000000010707266

Symptom Table

INFOID:0000000010707267

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 (1.96 bar, 2 kg/

, 28 psi). It then gradually

decreases.

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-120

< SYMPTOM DIAGNOSIS >

[TYPE 3]

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 air tem-
perature sensor.

Check intake sensor system.
Refer to

HAC-84, "Diagnosis

Procedure"

(AUTOMATIC AIR

CONDITIONING SYSTEM),

HAC-195, "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-116, "Diagnosis Proce-
dure"

(AUTOMATIC AIR

CONDITIONING SYSTEM),

HAC-215, "Diagnosis Proce-
dure"

(MANUAL AIR CONDI-

TIONING SYSTEM).

Gauge indication

Refrigerant cycle

Probable cause

Corrective action

AC353A

AC354A

NOISE

HA-121

< SYMPTOM DIAGNOSIS >

[TYPE 3]

NOISE

Symptom Table

INFOID:0000000010707268

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-114, "Inspection"

Magnet clutch

Contact of clutch disc with pulley.

Check clearance between
clutch disc and pulley. Refer
to

HA-123, "Inspection"

Compressor body

Loosened compressor mounting bolts.

Check bolts for tightness.
Refer to

HA-122, "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-124, "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-17, "Checking"

(HRA2DDT engine models),

EM-287, "Inspection"

(MR20DD engine models)
or

EM-142, "Inspection"

Internal compressor parts get locked

Replace compressor.

HA-122

< REMOVAL AND INSTALLATION >

[TYPE 3]

COMPRESSOR

REMOVAL AND INSTALLATION

COMPRESSOR

Exploded View

INFOID:0000000010501658

REMOVAL

HRA2DDT engine models

MR20DD engine models and MR16DDT engine models

Removal and Installation

INFOID:0000000010501659

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-

114, "Perform Lubricant Return Operation"

JMIIA3525GB

Compressor

: N·m (kg-m, ft-lb)

JMIIA3526GB

Compressor

: N·m (kg-m, ft-lb)

COMPRESSOR

HA-123

< REMOVAL AND INSTALLATION >

[TYPE 3]

REMOVAL

Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant. Refer to

HA-112,

"Recycle Refrigerant"

Remove drive belt. Refer to

EM-17, "Removal and Installation"

(HRA2DDT engine models),

EM-286,

"Removal and Installation"

(MR20DD engine models) or

EM-141, "Removal and Installation"

(MR16DDT

engine models).

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.

Disconnect compressor harness connectors.

Remove mounting bolts and nut, and then remove compressor form the vehicle. (HRA2DDT engine mod-
els)

Remove mounting bolts, and then remove compressor form the vehicle. (MR20DD engine models and
MR16DDT engine models).

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-115, "Lubri-

cant Adjusting Procedure for Compressor Replacement"

• Check for leakages when recharging refrigerant. Refer to

HA-110, "Leak Test"

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

EM-17, "Checking"

(HRA2DDT

engine models),

EM-287, "Inspection"

(MR20DD engine models) or

EM-142, "Inspection"

(MR16DDT

engine models).

Inspection

INFOID:0000000010501660

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-142, "Compressor"

JSIIA0087ZZ

HA-124

< REMOVAL AND INSTALLATION >

[TYPE 3]

COOLER PIPE AND HOSE

COOLER PIPE AND HOSE

Exploded View

INFOID:0000000010501661

HRA2DDT engine models

JMIIA3630GB

A/C unit assembly

O-ring

High-pressure pipe 3

High-pressure pipe 1

Refrigerant pressure sensor

Condenser & liquid tank assembly

High-pressure pipe 2

High-pressure flexible hose

Compressor

10. Low-pressure flexible hose

11.

Low-pressure pipe

: Always replace after every disassembly.

: N·m (kg-m, in-lb)

: N·m (kg-m, ft-lb)

COOLER PIPE AND HOSE

HA-125

< REMOVAL AND INSTALLATION >

[TYPE 3]

MR20DD engine models

JMIIA3631GB

A/C unit assembly

O-ring

High-pressure pipe 3

High-pressure pipe 1

Refrigerant pressure sensor

Condenser & liquid tank assembly

High-pressure pipe 2

High-pressure flexible hose

Compressor

10. Low-pressure flexible hose

: Always replace after every disassembly.

: N·m (kg-m, in-lb)

: N·m (kg-m, ft-lb)

: Indicate that the part is connected at point with same symbol in actual vehicle.

HA-126

< REMOVAL AND INSTALLATION >

[TYPE 3]

COOLER PIPE AND HOSE

MR16DDT engine models

HIGH-PRESSURE FLEXIBLE HOSE

HIGH-PRESSURE FLEXIBLE HOSE : Removal and Installation

INFOID:0000000010501662

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-

114, "Perform Lubricant Return Operation"

REMOVAL

Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant. Refer to

HA-112,

"Recycle Refrigerant"

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

JMIIA4021GB

A/C unit assembly

O-ring

High-pressure pipe 3

High-pressure pipe 1

Refrigerant pressure sensor

Condenser & liquid tank assembly

High-pressure pipe 2

High-pressure flexible hose

Compressor

10. Low-pressure flexible hose

11.

Low-pressure pipe

: Always replace after every disassembly.

: N·m (kg-m, in-lb)

: N·m (kg-m, ft-lb)

COOLER PIPE AND HOSE

HA-127

< REMOVAL AND INSTALLATION >

[TYPE 3]

CAUTION:

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

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.

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-110, "Leak Test"

LOW-PRESSURE FLEXIBLE HOSE

LOW-PRESSURE FLEXIBLE HOSE : Removal and Installation

INFOID:0000000010501663

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-

114, "Perform Lubricant Return Operation"

REMOVAL

Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant. Refer to

HA-112,

"Recycle Refrigerant"

Remove cowl top extension. Refer to

EXT-30, "Removal and Installation"

. (MR20DD engine models)

Disengage fixing clip, and then remove insulator upper side. (MR20DD engine models)

Remove mounting bolt, and then disconnect low-pressure flexible hose from low-pressure pipe.
(HRA2DDT engine models and MR16DDT engine models)

CAUTION:

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

Remove mounting bolt, and then disconnect low-pressure flexible hose from expansion valve. (MR20DD
engine models)

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.

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.

Remove low-pressure flexible hose mounting bolt. (MR20DD engine models)

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-110, "Leak Test"

LOW-PRESSURE PIPE

LOW-PRESSURE PIPE : Removal and Installation

INFOID:0000000010501664

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-

114, "Perform Lubricant Return Operation"

REMOVAL

HA-128

< REMOVAL AND INSTALLATION >

[TYPE 3]

COOLER PIPE AND HOSE

Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant. Refer to

HA-112,

"Recycle Refrigerant"

Remove fixing clip, and then remove insulator upper side.

Remove cowl top extension. Refer to

EXT-30, "Removal and Installation"

Remove mounting bolt, and then disconnect low-pressure 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.

Remove mounting bolts, and then disconnect low-pressure pipe from low-pressure flexible hose.

CAUTION:

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

Remove mounting nut, and then remove low-pressure 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-110, "Leak Test"

HIGH-PRESSURE PIPE 1

HIGH-PRESSURE PIPE 1 : Removal and Installation

INFOID:0000000010501665

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-

114, "Perform Lubricant Return Operation"

REMOVAL

Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant. Refer to

HA-112,

"Recycle Refrigerant"

Remove front bumper fascia assembly. Refer to

EXT-20, "Removal and Installation"

Remove mounting bolt, and then disconnect high-pressure pipe 1 from high-pressure pipe 3.

CAUTION:

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

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.

Disconnect refrigerant pressure sensor harness connector.

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-110, "Leak Test"

HIGH-PRESSURE PIPE 2

HIGH-PRESSURE PIPE 2 : Removal and Installation

INFOID:0000000010501666

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-

114, "Perform Lubricant Return Operation"

REMOVAL

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