1. Disconnect the wire from the terminal «minus» battery.
2. Remove the central overlay of the instrument panel (see «Removal and installation of the instrument panel»).
3. Turn out two screws of fastening to the panel of devices of the block of management of system of heating and air-conditioning.
4. Pull the control unit out of the socket in the instrument panel and disconnect the wiring harness block from it.
5. Under the instrument panel, remove the cable sheaths from the holders on the heater housing and disconnect the air distribution damper drive cable from the levers (on the left of the heater, with a green sheath)...
6.... recirculation damper cable (heater left, with black sheath)...
7.... cable for the actuator of the damper for adjusting the temperature of the air supplied to the passenger compartment (on the right of the heater, with a white sheath) and remove the air conditioning and heating control unit.
Note. Remember the location of the cables according to the color of their sheaths, so that when reinstalling, you do not confuse the heater levers to connect them.
8. Install the air conditioning and heating control unit and all removed parts in the reverse order of removal.