Disassembly

NOTE: Replace the fitting O-rings. Only use green rings resistant to R134A coolant. Lubricate the fittings with anti-freeze oil.

DISASSEMBLY

NOTE: The following procedure illustrates how to disassemble the unit to replace single components. However, some components may be replaced without removing the assembly, as shown in the following paragraphs.

1. Disconnect the electrical connection (1a) from the upper mixed air sensor, turn the sensor (1b) anti-clockwise and remove it.
2. Disconnect the electrical connection (2a) from the lower mixed air sensor, turn the sensor (2b) anti-clockwise and remove it.
3. Remove the fastening clips.
4. Disconnect the three motor electrical connections (4a, 4b, 4c).
5. Disconnect the fan electrical connection.
6. Disconnect the electronic variator electrical connections (6a, 6b).
7. Remove the complete wiring harness.

1. Remove the retainer screw.
2. Turn the fan assembly anti-clockwise and remove it.
3. Press the damper pads and separate the fan motor from the bracket.
4. Remove the electronic variator.

1. Remove the manifold cover.
2. Remove the heater radiator and bracket.
3. Disassemble the radiator from the bracket.