A/C Unit
A/C Unit
- Remove A/C unit. Refer to=> [ A/C Unit ] Removal and Replacement.
- Remove electrical add-on components from A/C unit. Refer to=> [ Electrical Components of A/C unit ] Electrical Components of A/C unit.
1 Air Distribution Housing For A/C System
• Different version for heating and A/C. Refer to the Electronic Parts Catalog.
• From May 2007, an A/C air distribution housing with a door in the air outlet to the defroster vents in the instrument panel without a side cut-out is gradually being installed. With the introduction of the door with the side cut-out, the Climatronic control module (J255) is changed. Refer to => [ A/C Air Distribution Housing Defroster Outlet Door ] A/C Air Distribution Housing Defroster Outlet Door and to the Electronic Parts Catalog. Make sure the correct Climatronic control module (J255) installed and then check the adaptation using Vehicle diagnosis, testing and information system (VAS5051B) in the "Guided Fault Finding" function.
• On the version for the A/C system, both left and right temperature doors are moved by one positioning motor each.
• With the heater version, only one positioning motor is installed for both left and right temperature doors. Both doors are connected to each other via a shaft.
2 Screw
3 Air Guide Channel To Left Footwell Vent
• Different versions. Refer to Electronic Parts Catalog (ETKA).
• A/C system version (with an opening for installing a temperature sensor).
4 Heater Core For Heater Unit
• Removing and installing, refer to => [ Heater Core ] Service and Repair.
5 Sealing Ring
• Replacing
• Coat thinly with coolant and insert on proper side. Refer to=> [ Heater Core ] Service and Repair.
6 Clip
• Replacing
• Ensure it is seated correctly.
• Removing and installing, refer to => [ Heater Core ] Service and Repair.
7 Screw
• Tightening specification 2.5 Nm
8 Coolant Pipes
• Disconnect and connect from heater core. Refer to=> [ Heater Core ] Service and Repair.
9 Foam Spacer
• Installed between grommet and A/C unit.
10 Grommet
• Install in the back of the plenum chamber before installing the A/C unit. Refer to => [ A/C Unit ] Removal and Replacement.
• Installing, refer to=> [ A/C Unit ] Removal and Replacement.
11 O-ring
• Replacing, refer to=> [ Refrigerant Circuit O-rings ] Refrigerant Circuit O-rings.
• Allocation, refer to Electronic Parts Catalog (ETKA).
12 O-ring
• Replacing, refer to=> [ Refrigerant Circuit O-rings ] Refrigerant Circuit O-rings.
• Allocation, refer to Electronic Parts Catalog (ETKA).
13 Expansion Valve
• Refrigerant lines, disconnecting and reconnecting, refer to=> [ Refrigerant Lines, Disconnecting and Connecting From Expansion Valve ] Refrigerant Lines, Disconnecting and Connecting From Expansion Valve.
• Removing and installing, refer to=> [ Expansion Valve ] Expansion Valve.
14 Screw
• Tightening specification 10 Nm
• Removing and installing, refer to=> [ Expansion Valve ] Expansion Valve.
15 Evaporator Housing
• Disassembling and assembling, refer to=> [ Evaporator Housing ] Evaporator Housing.
16 Dust and Pollen Filter
• Removing and installing, refer to => [ Dust and Pollen Filter ] Service and Repair.
• Follow the replacement intervals.
• With activated charcoal insert, refer to => [ Dust and Pollen Filter with Activated Charcoal Insert ] Description and Operation.
17 Cover For Dust and Pollen Filter
• Removing and installing, refer to=> [ Dust and Pollen Filter ] Service and Repair.
18 Air Guide Channel To Right Footwell Vent
• Different versions. Refer to Electronic Parts Catalog (ETKA).
• A/C system version (with an opening for installing a temperature sensor).
19 Plug
• Present two times in different version. Refer to=> [ Air Routing and Distribution in Passenger Compartment ] Air Routing and Distribution in Passenger Compartment.