Toyota 87107-35040
Heater Core

Engine coolant draining marks the first step of rear heater unit repair work but technicians should not empty all the coolant from the system. The first service stage requires frontend seats removal together with the center console box followed by floor carpet rearward adjustment. During installation position the hose clip according to the provided illustration before removing the water hoses. First disconnect the rear heater duct by removing its bolt and screw and duct before removing the rear heater control assembly. To unscrew the rear heater duct start by disconnecting its connectors then take out the three screws which fasten the heater unit. Rear/transverse engine vehicles employ the exact reverse sequence during installation of removed components.

Begin by removing the cooling unit and draining engine coolant from the radiator, noting that it is not necessary to drain all the coolant.

Begin by removing the cooling unit and draining engine coolant from the radiator, noting that it is not necessary to drain all the coolant.

Reassembly follows the reverse order of disassembly.

Remove the air outlet servomotor by taking out its 3 screws.

Slide the floor carpet backward.

Remove the foot duct by taking out the 2 screws, and then disconnect the mode damper control link.

Take out the 4 bolts to remove the cooler bracket.

Reassembly is performed in the reverse order of disassembly.

Begin by draining engine coolant from the radiator, noting that it is not necessary to remove all coolant.

Push the water hose onto the heater radiator pipe to the second ridge and install a hose clip.

Reassembly is performed in the reverse order of disassembly.

Slide the floor carpet backward and remove the cooler bracket by taking out the 4 bolts and bracket.