Cooling Unit: Disassembly

WARNING: This page is about a different car, the 2002 Toyota Sequoia. However, it is still accessible from the selected car via links, so may be relevant.

Remove blower motor linear controller .
Remove the 2 screws and blower motor linear controller.
Separate upper and lower unit cases
1. Disconnect the connector clamp of thermistor from upper unit case. See Fig 1.
2. Using a knife, cut off the each packing.
3. Remove a clip and 6 screws, and grommet.
4. Separate the upper and lower unit case, then pull out the thermistor from evaporator.

CAUTION: At the time of reassembly, please refer to the following item. If evaporator is replaced, add compressor oil to compressor.

Add 40 - 50 cc (1.4 - 1.7 fl.oz.)
Compressor oil: ND-OIL 8 or equivalent

Fig 1: Locating Connector Clamp & Screws

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Remove evaporator from lower unit case .

NOTE: At the time of reassembly, please refer to the following item. Lubricate 4 new O-rings with compressor oil and install them to the tubes and valve.

Fig 2: Removing Expansion Valve

Remove expansion valve :
Using a hexagon wrench (5.0 mm, 0.20 in.), remove the 2 bolts and separate the expansion valve, evaporator and tubes. See Fig 2.

Torque: 5.4 N.m (55 kgf.cm, 48 in..lbf)