To disconnect, press the plastic part of the flexible shaft "arrow" and pull it out of the control unit "1". Slightly press the corner locks and pull the heater control unit toward you. Disconnect connectors.
Installation is carried out in the reverse order of actions. In this case, the following instructions must be observed. We install the flexible shaft on the heater control device in only one single position.
Assembly diagram of the air conditioning unit
1 - Additional resistor for the heating system fan "N24"; 2 - Actuator for regulating the flap for fresh and circulated air "V154", with built-in potentiometer "G143"; 3 - Fresh air intake fan "V2"; 4 - Heater control device casing; 5 - Dust and pollen filter, also as a combination filter with an odor filter; 6 - Flexible shaft, to the air distributor adjustment device; 7 - Heater and air conditioner control unit, replace only as a complete unit, as a set; 8 - Plug connector for footwell air temperature sensor "G192"; 9 - Footwell Air Temperature Sensor "G192". To remove, remove the center panel, disconnect the plug connector, and turn the sensor 90° to the left; 10 - O-ring; 11 - Heating element of the additional resistive heater (ARH) "Z35", only on some vehicles; 12 - Heat exchanger; 13 - Mixing control device (temperature) "V68" dampers with built-in "G92" potentiometer; 14 - Seal with holder, secured with clamps on the heater, replace if damaged; 15 - Condensate drain valve; 16 - Plug connector for evaporator temperature sensor "G263"; 17 - Intake air temperature sensor in the middle "G191", built into the screen (air duct) middle blower nozzles, to remove it you should remove the shock absorber panel under the instrument panel to the left and the air duct nozzle in the driver's footwell, turn the sensor 90° to the left, lower it down and disconnect it; 18 - Evaporator temperature sensor "G263", to remove it you should remove the instrument panel, disconnect the plug connector and pull it to the side; 19 - Sealing ring; 20 - The fitting for cooling the glove compartment on the passenger side of the front seat is screwed to the housing; 21 - Connecting hose, to the glove compartment on the front passenger side