Basis A/C Unit
Basis A/C Unit
• Depending on the production date, there are different versions of the levers and connections on the A/C unit. Refer to => [ Air Conditioner, Levers and Connecting Elements ] Air Conditioner, Levers and Connecting Elements and the Electronic Parts Catalog (ETKA).
- Remove the A/C unit. Refer to => [ A/C Unit ] A/C Unit.
1 Bolt
2 Bracket for Coolant Pipes
3 Evaporator Housing
• Disassembling and assembling, refer to => [ Evaporator Housing ] Evaporator Housing.
• There are different versions based on the manufacturing date and on the version of the vehicle. Refer to => [ Evaporator Housing ] Evaporator Housing and to the Parts Catalog.
• Evaporator housing, removing and installing, refer to => [ Evaporator Housing ] Evaporator Housing.
4 Coolant Pipe
• Removing and installing, refer to => [ Heater Core/Housings ] Heater Core/Housings.
• For the coolant supply from the engine
5 Coolant Pipe
• Removing and installing, refer to => [ Heater Core/Housings ] Heater Core/Housings.
• For coolant return to engine
6 O-Ring
• Replacing
• Coat lightly with coolant before installing. Refer to => [ Heater Core/Housings ] Heater Core/Housings.
7 Clamp
• These clamps are installed by the manufacturer; they hold the coolant pipes in the heater core installed by the manufacturer, item 8 => [ (Item 8) Heater Core for the Heater ].
8 Heater Core for the Heater
• This version is installed by the manufacturer.
• Removing and installing, refer to => [ Heater Core/Housings ] Heater Core/Housings.
9 Coolant Pipe Brackets Inside Replacement Heater Core
• Included with the replacement heater core. Refer to the Parts Catalog.
• Removing and installing, refer to => [ Heater Core/Housings ] Heater Core/Housings.
10 Washer
• Included with the replacement heater core. Refer to the Parts Catalog
11 Bolt
• Tightening specification 2.5 Nm
• Included with the replacement heater core. Refer to the Parts Catalog
12 Replacement Parts - Heater Core
• With the A/C unit installed, removing and installing, refer to => [ Heater Core/Housings ] Heater Core/Housings
• This version is a replacement part. Refer to Electronic Parts Catalog (ETKA).
• Included in the replacement heater core kit, item 6 => [ (Item 6) O-Ring ] and item 9 => [ (Item 9) Coolant Pipe Brackets Inside Replacement Heater Core ] through item 12 => [ (Item 12) Replacement Parts - Heater Core ]. Refer to Electronic Parts Catalog (ETKA).
• Cover the heater core according to the version of the A/C system installed in the vehicle with foam seals. Refer to => [ Heater Core/Housings ] Heater Core/Housings.
13 Honey Comb
• With the A/C unit installed, removing and installing, refer to => [ Auxiliary Air Heater Heating Element (Z35)/Honey Comb ] Auxiliary Air Heater Heating Element (Z35)/Honey Comb.
• Cover the honey comb with foam seals according to the version of the A/C system. Refer to => [ Auxiliary Air Heater Heating Element (Z35)/Honey Comb ] Auxiliary Air Heater Heating Element (Z35)/Honey Comb.
14 Auxiliary Air Heater Heating Element (Z35)
• On specific gasoline engines, refer to => [ Auxiliary Heater Heating Element (Z35), Testing ] Auxiliary Heater Heating Element (Z35), Testing.
• Checking function, refer to => [ Auxiliary Heater Heating Element (Z35), Testing ] Auxiliary Heater Heating Element (Z35), Testing.
• With the A/C unit installed, removing and installing, refer to => [ Auxiliary Air Heater Heating Element (Z35)/Honey Comb ] Auxiliary Air Heater Heating Element (Z35)/Honey Comb.
• Cover the auxiliary air heater heating element with foam seals according to the version of the A/C system. Refer to => [ Auxiliary Air Heater Heating Element (Z35)/Honey Comb ] Auxiliary Air Heater Heating Element (Z35)/Honey Comb.
• In MY 2009, as a running change, a new version of the auxiliary air heater heating element is being installed (the heating element is a bit more narrow); be sure to use the correct version and note the allocation. Refer to Electronic Parts Catalog (ETKA).
15 Bracket
16 Left Heater Core Housing (With The Temperature Doors)
• The activation of the temperature doors and with it the left heater core housing is different between vehicles equipped with "Comfort" and "Basis" A/C systems. On the "Basis" A/C system, both temperature doors (for the left instrument panel vents and the left footwell vents) are controlled by the same shaft. Refer to => [ Air Distributor Housing Doors and Partitions ] Air Distributor Housing Doors and Partitions and the Electronic Parts Catalog (ETKA).
• Different versions (with one or two lower mounting points. Refer to => [ Left Heater Core Housing with Temperature Doors ] Left Heater Core Housing With Temperature Doors and the Electronic Parts Catalog (ETKA).
• With the A/C unit installed, removing and installing, refer to => [ Left Heater Core Housing with Temperature Doors ] Left Heater Core Housing With Temperature Doors.
• Apply a small amount of grease (G 000 150) to the cam plate guides, the shaft bearings, the toothed segment as well as to the pins on the door levers. Refer to Electronic Parts Catalog (ETKA).
17 Defroster Door Motor (V107)
• Removing and installing, refer to => [ Defroster Door Motor (V107) ] Defroster Door Motor (V107).
18 Left Mounting Plate with the Footwell Door Motor (V261)
• With cam plate, actuating arms and connector rods.
• Footwell Door Motor, removing and installing, refer to => [ Footwell Door Motor (V261) and Left Footwell Door Motor (V108) ] Footwell Door Motor (V261) and Left Footwell Door Motor (V108).
• Retaining plate with Footwell Door Motor, removing and installing, refer to => [ Left Retaining Plate with Footwell Door Motor (V261) ] Left Retaining Plate With Footwell Door Motor (V261).
• Mounting plate with Footwell Door Motor, disassembling and assembling, refer to => [ Left Retaining Plate with Footwell Door Motor (V261) ] Left Retaining Plate With Footwell Door Motor (V261).
• The actuation of the temperature doors differs between vehicles equipped with the "Basis" A/C system and the "Comfort" A/C system. On the "Basis" A/C system, the doors (for the left and right instrument panel vents and the left and right front footwells) are connected to each other by connector rods in the air distribution housing. The doors for the left and right rear footwell vents are connected to each other by a shaft. All these doors are actuated by the footwell door motor. Refer to => [ Air Distributor Housing Doors and Partitions ] Air Distributor Housing Doors and Partitions.
• Apply a small amount of grease (G 000 150) to the cam plate guides, the shaft bearings as well as to the pins on the door levers. Refer to Electronic Parts Catalog (ETKA).
19 Toothed Segment
20 Mounting Plate with the Temperature Regulator Door Motor (V68)
• Removing and installing the mounting plate with the temperature regulator door motor; remove the temperature regulator door motor from the mounting plate. Refer to => [ Temperature Regulator Door Motor (V68) and Rear Temperature Door Motor (V137) ] Temperature Regulator Door Motor (V68) and Rear Temperature Door Motor (V137).
• The actuation of the left and right temperature doors differs between vehicles equipped with the "Basis" A/C system and the "Comfort" A/C system On the "Basis" A/C system, the left temperature doors are actuated by the temperature regulator door motor by a toothed segment, item 19 => [ (Item 19) Toothed Segment ]. The right temperature door is actuated by the temperature regulator door motor via the connector rod item 23 => [ (Item 23) Connector Rod For The Temperature Doors ] 23 which also has a toothed segment. Refer to => [ Air Distributor Housing Doors and Partitions ] Air Distributor Housing Doors and Partitions.
• Apply a small amount of grease (G 000 150) to the shaft bearings, the toothed segments as well as to the pins on the flap levers. Refer to the Parts Catalog.
21 Connecting Rod To The Defroster Door
22 Actuating Arm To The Defroster Door Motor (V107)
23 Connector Rod For The Temperature Doors
• There are different connecting rods - A - (different connecting element for the right temperature door toothed segment) depending on the date of production. Refer to => [ Air Conditioner, Levers and Connecting Elements ] Air Conditioner, Levers and Connecting Elements and the Electronic Parts Catalog (ETKA).
24 Footwell Outlet Temperature Sensor (G192)
• Removing and installing, refer to => [ Footwell Vent Temperature Sensor (G192)/Left Footwell Vent Temperature Sensor (G261) ] Footwell Vent Temperature Sensor (G192)/Left Footwell Vent Temperature Sensor (G261).
• The footwell vent temperature sensor (G192) is installed in the left footwell vent.
25 Center Outlet Temperature Sensor (G191)
• Removing and installing, refer to => [ Center Vent Temperature Sensor (G191) ] Center Vent Temperature Sensor (G191).
• The center outlet temperature sensor (G191) is installed in the center instrument panel air guide channel.
26 Wiring Harness, "Basis" A/C System
• Different versions. Refer to Electronic Parts Catalog (ETKA).
• Mark the allocation before disconnecting the connectors (danger of interchange, connectors of same shape for different motors and temperature sensor).
• Secure wiring harness to mounting points provided on housing (using cable ties, item 27 => [ (Item 27) Cable Ties ] , or on mounts) so that it does not come into contact with moving components.
27 Cable Ties
28 Air Distribution Housing, "Basis" A/C System
• Do not disassemble further
• Different versions between vehicles equipped with the "Comfort" A/C system and the "Basis" A/C system. Refer to Electronic Parts Catalog (ETKA).
• Apply a small amount of grease (G 000 150) to the cam plate guides, the shaft bearings, the toothed segment as well as to the pins on the door levers. Refer to Electronic Parts Catalog (ETKA).
• On the "Basis" A/C system, the various doors (for example, for the left and right vents) are connected to each other by connector rods; they are actuated by one control motor. Refer to => [ Air Distributor Housing Doors and Partitions ] Air Distributor Housing Doors and Partitions.
29 Right Radiator Housing (With The Temperature Doors)
• The activation of the temperature doors and with it the right radiator housing is different between vehicles equipped with "Comfort" and "Basis" A/C systems. On the "Basis" A/C system, both temperature doors (for the right instrument panel vents and the right footwell vents) are controlled by the same shaft. Refer to => [ Air Distributor Housing Doors and Partitions ] Air Distributor Housing Doors and Partitions and the Electronic Parts Catalog (ETKA).
• Different versions (with one or two lower mounting points. Refer to => [ Left Heater Core Housing with Temperature Doors ] Left Heater Core Housing With Temperature Doors and the Electronic Parts Catalog (ETKA).
• With the A/C unit installed, removing and installing, refer to => [ Right Heater Core Housing, Motor Mounting Plate Removed ] Right Heater Core Housing, Motor Mounting Plate Removed or => [ Right Heater Core Housing and Right Motor Mounting Plate ] Right Heater Core Housing and Right Motor Mounting Plate.
• Apply a small amount of grease (G 000 150) to the cam plate guides, the shaft bearings, the toothed segment as well as to the pins on the door levers. Refer to Electronic Parts Catalog (ETKA).
30 Center Vent Adjustment Motor (V102)
• Removing and installing, refer to => [ Center Vent Adjustment Motor (V102) ] Center Vent Adjustment Motor (V102).