Lexus NX manuals

Lexus NX: Sub Radiator

Lexus NX Service Manual / Engine & Hybrid System / 2ar-fxe (hybrid / Battery Control) / Sub Radiator

Removal

REMOVAL

PROCEDURE

1. REMOVE NO. 1 ENGINE UNDER COVER ASSEMBLY

Click here

2. DRAIN COOLANT (for Inverter Coolant)

Click here

3. REMOVE UPPER RADIATOR SUPPORT SUB-ASSEMBLY

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4. REMOVE NO. 2 FAN SHROUD

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5. REMOVE RADIATOR ASSEMBLY (for Inverter Coolant)

(a) Slide the hose clamp, and disconnect the No. 5 inverter cooling hose and No. 2 inverter cooling hose assembly from the radiator assembly (for inverter coolant).

NOTICE:

  • After disconnecting the water hose, plug the water hose and the pipe of the radiator assembly (for inverter coolant) with vinyl tape, etc. to prevent foreign matter from entering the cooling path.
  • Do not apply excessive force to the water hose.

HINT:

Prepare a drain pan or cloth in case the coolant leaks.

(b) Remove the 4 bolts and radiator assembly (for inverter coolant) from the cooler condenser assembly.

Installation

INSTALLATION

PROCEDURE

1. INSTALL RADIATOR ASSEMBLY (for Inverter Coolant)

(a) Install the radiator assembly (for inverter coolant) to the cooler condenser assembly with the 4 bolts.

Torque:

9.0 N·m {92 kgf·cm, 80 in·lbf}

*a

Matchmark

*b

Positioning Rib

*c

135°

*d

45°

*e

Top

*f

Front of the Vehicle

(b) Referring to the illustration, connect the No. 5 inverter cooling hose, No. 2 inverter cooling hose assembly and clamp to the radiator assembly (for inverter coolant), and secure with the hose clamp.

NOTICE:

  • Until immediately before connecting the water hose, plug the water hose and pipe with vinyl tape, etc. to prevent foreign matter from entering the cooling path.
  • Insert the water hose up to the tank surface of the radiator assembly (for inverter coolant).
  • Align the matchmark on the water hose with the positioning rib on the radiator assembly (for inverter coolant).

2. INSTALL NO. 2 FAN SHROUD

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3. INSTALL UPPER RADIATOR SUPPORT SUB-ASSEMBLY

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4. ADD COOLANT (for Inverter Coolant)

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5. INSPECT FOR COOLANT LEAK (for Inverter Coolant)

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6. INSTALL NO. 1 ENGINE UNDER COVER ASSEMBLY

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READ NEXT:

 Water Pump With Motor

 Components

COMPONENTS ILLUSTRATION *1 HV WATER PUMP BRACKET SUB-ASSEMBLY *2 NO. 1 ENGINE UNDER COVER ASSEMBLY *3 NO. 2 INVERTER COOLING HOSE ASSEMBLY *4 WATER PUMP WITH MOTOR *5 NO. 2 I

 Removal

REMOVAL PROCEDURE 1. REMOVE NO. 1 ENGINE UNDER COVER ASSEMBLY Click here 2. DRAIN COOLANT (for Inverter Coolant) Click here 3. REMOVE UPPER RADIATOR SUPPORT SUB-ASSEMBLY Click here 4. DISCONNE

SEE MORE:

 Engine ECU Communication (U0100,U0126,U0140,U0163,U0233,U1110)

DESCRIPTION These DTCs are stored if there is a malfunction in the CAN communication system connected to the rear television camera assembly. HINT: If CAN communication system DTCs are stored, they may also be stored in other systems. *1: w/ Blind Spot Monitor System *2: w/ LEXUS Parking Assist

 Vehicle Specifications have not been Stored (B2451)

DESCRIPTION This DTC is output if the vehicle variation information is not written to the headlight ECU sub-assembly LH. The headlight ECU sub-assembly LH outputs DTC B2451. DTC No. Detection Item DTC Detection Condition Trouble Area B2451 Vehicle Specifications have not been Stored

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