OEM Toyota Yaris Radiator

Toyota Yaris Radiator Parts and Q&A

• Radiator Assembly
  16400-21381
  Q: How to install the radiator and its components on Toyota Yaris?

  A:

  Installation of a radiator should start by mounting the radiator drain cock on the radiator assembly. You should install the 2 radiator reserve tank hose grommets together with the 2 radiator support cushions onto the radiator assembly. Use the 2 claws to attach the fan shroud after which install the automatic transaxle outlet and inlet hoses by applying clips. After installing radiator hose No. 2 with its clip proceed to attach the radiator assembly with air conditioning system while securing the 2 claws but avoid applying too much force to the cooler condenser assembly or piping. The cooling fan motor connector must be joined with wire harness clamps. The radiator assembly gets installed without an air conditioning system and the cooling fan motor connector and wire harness clamps get connected in this situation. Connect the oil cooler inlet and outlet hoses and radiator hose No. 2 with their allotted clips before installing radiator hose No. 3 using its 2 clips. Install 4 bolts into the radiator support sub-assembly upper while tightening them to 5.5 Nm (56 kgf-cm, 49 in-lbf). Afterward, connect the horn assembly connector. The hood lock assembly requires temporary bolting with three bolts and subsequent connections of engine hood courtesy switch connector and hood lock control cable assembly to its two clamps. The thief deterrent system installation follows the previous procedure yet users should bypass the theft deterrent process for vehicles without theft protection features. Secure the 2 pins of No. 1 cooler cover into the radiator support LWR through the use of 2 clips for installation. The radiator support absorber upper requires six claws before installation during hatchback procedures. Secure the air cleaner case with two bolts at air cleaner inlet No. 1 while torquing them to 7.8 Nm (80kgf-cm, 69 in-lbf) then connect the wire harness to the air cleaner case. The air cleaner cap can then be secured while tightening the air cleaner hose clamp to 4.0 Nm (41 kgf-cm, 35 in-lbf). Kelley wire harness clamps should secure the ventilation hose along with the vacuum switching valve connector, fuel vapor feed hose and intake air flow meter connector. The front bumper assembly installation requires either the hatchback or sedan specific model while the battery cable connection demands a torque of 5.4 Nm (55 kgf-cm, 48 in-lbf) to the negative terminal and engine cooling needs to proceed with hood lock bolt adjustment before bolting with 7.5 Nm (76 kgf-cm, 66 in-lbf). End the inspection by examining fuel leaks from the engine.
• Radiator Assembly
  16410-AZ029
  Q: How to remove the radiator on Toyota Yaris?

  A:

  The radiator removal process starts by turning off the ignition because this action disables the electric cooling fans. The procedure starts with removing the negative battery cable connection before draining the engine coolant. Hatchback models require the removal of front bumper cover followed by disconnection of the intake air flow meter connector and vacuum switching valve connector for air cleaner assembly maintenance. This process continues by disconnecting fuel vapor feed hoses and ventilation hose then releasing the air cleaner cap while loosening its hose clamp for cleaning and replacement. Start by removing the radiator support absorber upper after loosening 6 claws and proceed to unclip the No. 1 cooler cover. The hood lock assembly removal process requires detachment of the hood lock control cable and engine hood courtesy switch connector for vehicles with theft deterrent system but requires removing only 3 bolts for vehicles without the same feature. Suspend the horn assembly connector then remove the 4 bolts to detach the radiator support sub-assembly upper. Disconnect the radiator reservoir tank hose at the water filler location before unclipping the radiator hose No. 3 and No. 2 for removal. Automatic transaxle models require loose clips before disconnecting the oil cooler outlet and inlet hoses. Air-conditioned vehicles require you to first disconnect their cooling fan motor connector and separate its wire harness clamps before disengaging the radiator assembly using 2 claws whereas standard vehicles need only the cooling fan motor connector removal for the radiator assembly extraction. Disconnect radiator hose No. 2 and the oil cooler outlet and inlet hoses before eliminating the 2 claws which separate the fan shroud. Then extract the 2 radiator support cushions from the radiator assembly. The last step involves taking off both radiator reserve tank hose grommets and the radiator drain cock from the radiator assembly.