Toyota Prius: Electric Expansion Valve (cooling)

• Removal
• Installation

Removal

REMOVAL

CAUTION / NOTICE / HINT

The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed and installed, or replaced during cooler expansion valve removal/installation are shown below.

Necessary Procedures After Parts Removed/Installed/Replaced

Replaced Part or Performed Procedure	Necessary Procedures	Effect/Inoperative Function When Necessary Procedures are not Performed	Link
Cooling electric expansion valve (cooler expansion valve)	Servo motor initialization (Air Conditioning System) Expansion valve initialization (Air Conditioning System)	DTCs are stored

CAUTION / NOTICE / HINT

COMPONENTS (REMOVAL)

Procedure		Part Name Code
1	RECOVER REFRIGERANT FROM REFRIGERATION SYSTEM	-		-	-
2	WINDSHIELD WIPER MOTOR AND LINK ASSEMBLY	-	-	-	-
3	WATER GUARD PLATE	55734D	-	-	-
4	OUTER COWL TOP PANEL SUB-ASSEMBLY	55701J	-	-	-

Procedure		Part Name Code
5	COOLER BRACKET	-	-	-	-
6	COOLER EXPANSION VALVE	88515A		-	-

*1	NO. 8 DISCHARGE TUBE	*2	NO. 7 DISCHARGE TUBE
●	Non-reusable part	-	-

PROCEDURE

1. RECOVER REFRIGERANT FROM REFRIGERATION SYSTEM

(a) for HFC-134a (R134a):

Click here

(b) for HFO-1234yf (R1234yf):

Click here

2. REMOVE WINDSHIELD WIPER MOTOR AND LINK ASSEMBLY

Click here

3. REMOVE WATER GUARD PLATE

Click here

4. REMOVE OUTER COWL TOP PANEL SUB-ASSEMBLY

Click here

5. REMOVE COOLER BRACKET

6. REMOVE COOLER EXPANSION VALVE

(1) Remove the 2 bolts and cooler expansion valve.

NOTICE:

Do not apply excessive force to the No. 7 discharge tube and No. 8 discharge tube.

(2) Remove the 2 O-rings from the No. 7 discharge tube and No. 8 discharge tube.

NOTICE:

Seal the openings of the disconnected parts using vinyl tape to prevent entry of moisture and foreign matter.

Installation

INSTALLATION

CAUTION / NOTICE / HINT

COMPONENTS (INSTALLATION)

Procedure		Part Name Code
1	COOLER EXPANSION VALVE	88515A		-	-
2	COOLER BRACKET	-	-	-	-

*1	NO. 8 DISCHARGE TUBE	*2	NO. 7 DISCHARGE TUBE
	N*m (kgf*cm, ft.*lbf): Specified torque	●	Non-reusable part
	Compressor oil ND-OIL 11 or equivalent	-	-

Procedure		Part Name Code
3	OUTER COWL TOP PANEL SUB-ASSEMBLY	55701J	-	-	-
4	WATER GUARD PLATE	55734D	-	-	-
5	WINDSHIELD WIPER MOTOR AND LINK ASSEMBLY	-	-	-	-
6	CHARGE AIR CONDITIONING SYSTEM WITH REFRIGERANT	-	-	-
7	WARM UP COMPRESSOR	-	-	-
8	INSPECT FOR REFRIGERANT LEAK	-	-	-
9	INITIALIZATION COOLER EXPANSION VALVE	-	-	-

Tightening torque for "Major areas involving basic Toyota Prius vehicle performance such as moving/turning/stopping": N*m (kgf*cm, ft.*lbf)

N*m (kgf*cm, ft.*lbf): Specified torque

PROCEDURE

1. INSTALL COOLER EXPANSION VALVE

(1) Remove the vinyl tape from the No. 7 discharge tube, No. 8 discharge tube and cooler expansion valve, and sufficiently apply compressor oil to 2 new O-rings and the fitting surface of the No. 7 discharge tube and No. 8 discharge tube.

Compressor Oil:

ND-OIL 11 or equivalent

(2) Install the 2 O-rings to the No. 7 discharge tube and No. 8 discharge tube.

NOTICE:

Keep the O-ring and O-ring fitting surface free from foreign matter.

(3) Install the cooler expansion valve with the 2 bolts.

Torque:

9.8 N·m {100 kgf·cm, 87 in·lbf}

2. INSTALL COOLER BRACKET

Torque:

5.0 N·m {51 kgf·cm, 44 in·lbf}

3. INSTALL OUTER COWL TOP PANEL SUB-ASSEMBLY

Click here

4. INSTALL WATER GUARD PLATE

5. INSTALL WINDSHIELD WIPER MOTOR AND LINK ASSEMBLY

Click here

6. CHARGE AIR CONDITIONING SYSTEM WITH REFRIGERANT

(a) for HFC-134a (R134a):

Click here

(b) for HFO-1234yf (R1234yf):

Click here

7. WARM UP COMPRESSOR

(a) for HFC-134a (R134a):

Click here

(b) for HFO-1234yf (R1234yf):

Click here

8. INSPECT FOR REFRIGERANT LEAK

(a) for HFC-134a (R134a):

Click here

(b) for HFO-1234yf (R1234yf):

Click here

9. INITIALIZATION COOLER EXPANSION VALVE

Click here