Heater and A/C Unit Overview, Climatronic

Heater and A/C Unit Overview, Climatronic






1 Front Air Distribution Door Motor (V426) With Front Air Distribution Door Motor Position Sensor (G642)

• Checking: use the vehicle diagnostic tester

• Removing and installing, refer to => [ Front Air Distribution Door Motor (V426) and Position Sensor (G642) ] Front Air Distribution Door Motor (V426) and Position Sensor (G642).

• Replacing: initiate basic setting using the vehicle diagnostic tester.

2 Left Temperature Door Motor (V158)

• Checking: use the vehicle diagnostic tester

• Removing and installing, refer to => [ Left Temperature Door Motor (V158) ] Left Temperature Door Motor (V158).

• Replacing: initiate basic setting using the vehicle diagnostic tester.

3 Defroster Door Motor (V107)

• Checking: use the vehicle diagnostic tester

• Removing and installing, refer to => [ Defroster Door Motor ] Defroster Door Motor (V107).

• Replacing: initiate basic setting using the vehicle diagnostic tester.

4 Bracket

5 Screws

• It is necessary to remove the screws in order to separate the bracket from the air distribution and evaporator housing.

6 Cover

7 Fresh Air/Recirculating Air/Back Pressure Door Motor (V425)

• Checking: use the vehicle diagnostic tester

• Removing and installing, refer to => [ Fresh Air/Recirculating Air/Back Pressure Door Motor (V425) ] Fresh Air/Recirculating Air/Back Pressure Door Motor (V425).

• Replacing: initiate basic setting using the vehicle diagnostic tester.

8 Air Intake Housing

• With recirculating air door

• With air flow door (Climatronic)

• Removing and installing, refer to => [ Air Intake Housing ] Air Intake Housing.

9 Evaporator Housing Upper Section

• Evaporator housing, disassembling and assembling, refer to => [ Evaporator Housing ] Overhaul.

10 Evaporator Housing Lower Section

• Evaporator housing, disassembling and assembling, refer to => [ Evaporator Housing ] Overhaul.

11 Evaporator

• Removing and installing, refer to => [ Evaporator ] Service and Repair.

12 Evaporator Temperature Sensor (G308) or Evaporator Vent Temperature Sensor (G263)

• Checking: use the vehicle diagnostic tester

• One or both of the component designations will appear, depending on software. The tasks are the same.

• Removing and installing, refer to => [ Evaporator Temperature Sensor (G308) or Evaporator Vent Temperature Sensor (G263) ] Service and Repair.

13 Connection For Glove Compartment Cooling

• Remove the glove compartment.

14 Cooling Hose For Glove Compartment Cooling

• Remove the glove compartment.

• Installation position of glove compartment cooling connection; refer to => [ Installation position of glove compartment
cooling connection ].

15 Fresh Air Blower (V2) with Fresh Air Blower Control Module (J126)

• Checking: use the vehicle diagnostic tester

• Fresh Air Blower (V2) , removing and installing, refer to => [ Fresh Air Blower (V2), Manual Controls ] Fresh Air Blower (V2), Manual Controls.

• Fresh Air Blower Control Module (J126) , removing and installing, refer to => [ Fresh Air Blower Control Module (J126) ] Fresh Air Blower Control Module (J126).

16 Dust and Pollen Filter

• With activated charcoal filter

• Removing and installing, refer to => [ Dust and Pollen Filter ] Service and Repair.

17 Cover

• For dust and pollen filter

18 Heater Core

• Removing and installing, refer to => [ Heater Core ] Service and Repair.

19 Right Temperature Door Motor (V159)

• Checking: use the vehicle diagnostic tester

• Removing and installing, refer to => [ Right Temperature Door Motor (V159) ] Right Temperature Door Motor (V159).

• Replacing: initiate basic setting using the vehicle diagnostic tester.

20 Heater Core Trim

21 Auxiliary Heater Heating Element (Z35)

• Only installed on vehicles with a diesel engine.

• Checking: using the vehicle diagnostic tester under Heating, Ventilation and Air Conditioning; OBD-Capable Systems; Auxiliary Heater; Electrical Components.

22 Air Distribution Housing

• Removing and installing, refer to => [ Air Distribution Housing ] Air Distribution Housing.

Installation position of glove compartment cooling connection





1 Connection

2 Valve