Heater Electrical Attachments
Heater Electrical Attachments
Heater, removing and installing, refer to => [ A/C Unit ] Removal and Replacement.
• Remove the heater the same way as removing the A/C unit. The items that affect components that are only present on the A/C system are omitted.
1 Wiring Harness For Heater
• Different versions, for example, with or without voltage supply to the auxiliary heater heating element (Z35) ). Refer to Electronic Parts Catalog (ETKA).
• Mark the allocation before disconnecting the connectors (connectors of same shape for different motors, risk of interchanging them).
• Secure wiring harness to mounting points provided on housing (using cable ties, or on mounts) so that it does not come into contact with moving components.
2 Heater Unit
• Removing and installing, refer to=> [ A/C Unit ] Removal and Replacement (A/C unit, removing and installing).
• Remove the heater the same way as removing the A/C unit. The items that affect components that are only present on the A/C system are omitted.
• Heater, disassembling and assembling, refer to=> [ Heater ] Heater.
• Air guide channel, disassembling and assembling, refer to=> [ Air Guide Channel ] Overhaul.
3 Auxiliary Air Heater Heating Element (Z35)
• Only intended for vehicles with Diesel engine.
4 Cover For Coolant Pipes and Heater Core
• This illustration shows version for vehicles with Auxiliary Air Heater Heating Element (Z35).
• Different versions for vehicles with or without Auxiliary Air Heater Heating Element (Z35) (opening for Auxiliary Air Heater Heating Element (Z35) is sealed by this cover in vehicles without Auxiliary Air Heater Heating Element (Z35) ). Refer to Electronic Parts Catalog (ETKA).
5 Screw
6 Central Air Door Motor (V70)
• With Central Door Motor Position Sensor (G112).
• Removing and installing, refer to => [ Central Air Door Motor (V70)/(V145) ] Central Air Door Motor (V70)/(V145).
7 Left Temperature Door Motor (V158)
• With Left Temperature Door Potentiometer/Actuator (G220).
• Lever color identification: white.
• Removing and installing, refer to => [ Left Temperature Door Motor (V158) ] Left Temperature Door Motor (V158).
• On the Audi TT with A/C (heating only), only one temperature door motor is installed. Both temperature doors for the left and right sides are connected via a shaft and moved together by the Left Temperature door Motor (V158).
• Vehicles without A/C do not have a temperature sensor. The outflow temperature is not controlled. The Left Temperature Door Motor (V158) is placed in a position calculated according to the temperature setting and the programmed motor stop values by the Climatronic control module (J255).
8 Connecting Rod to Left Temperature Door Motor (V158)
• Color identification: black.
9 Defroster Door Motor (V107)
• With Defroster Door Motor Position Sensor (G135).
• Lever color identification: blue.
• Removing and Installing, refer to => [ Defroster Door Motor (V107) ] Defroster Door Motor (V107).
• This motor is fastened on the right on air distributor housing in vehicles with right-side steering.
10 Connecting Rod to Defroster Door Motor (V107)
• Color identification: blue.
11 Cover and Bracket for Air Flow Door Motor (V71) and Recirculation Door Motor (V113)
• Removing and installing, refer to=> [ Air Flow Door Motor (V71), Function ] Air Flow Door Motor (V71), Function.
• After installing, check both control motors which must be held in position by this bracket, if they are not installed free of play, use some foam to rectify play if necessary, attaching it to inside of mounting points of bracket. Refer to=> [ Air Flow Door Motor (V71), Function ] Air Flow Door Motor (V71), Function.
12 Control motor Door Motor (V113)
• With Recirculation Door Motor Position Sensor (G143).
• Removing and installing, refer to => [ Air Flow Door Motor (V71), Function ] Air Flow Door Motor (V71), Function.
13 Back Pressure Door Motor (V71)
• With Back Pressure Door Motor Position Sensor (G113).
• Removing and installing, refer to => [ Air Flow Door Motor (V71), Function ] Air Flow Door Motor (V71), Function.
14 Foam Seal
• For sealing heater air intake shroud to vehicle.
15 Intake Housing With Recirculating Air and Air Flow/Fresh Air Door
• Do not disassemble further.
• Removing and installing, refer to => [ Air Intake Housing with Recirculating and Air Flow/Fresh Air Door ] Air Intake Housing With Recirculating and Air Flow/Fresh Air Door.
• Can be obtained as a replacement part in various versions. Refer to=> [ Air Intake Housing with Recirculating and Air Flow/Fresh Air Door ] Air Intake Housing With Recirculating and Air Flow/Fresh Air Door.
16 Fresh Air Blower Control Module (J126) and Fresh Air Blower (V2)
• Removing and installing, refer to => [ Fresh Air Blower Control Module (J126) and Fresh Air Blower (V2) ] Description and Operation.
• Different versions. At the start of production, a Fresh Air Blower was installed, with Fresh Air Blower Control Module cast on the blower (cannot be replaced individually). In model year 2007, Fresh Air Blower Control Module and Fresh Air Blower that are bolted together (each can be replaced separately) will be introduced as a running change. Refer to => [ Fresh Air Blower Control Module (J126) and Fresh Air Blower (V2) ] Description and Operation and Electronic Parts Catalog (ETKA).
• The Fresh Air Blower Control Module (J126) is installed in the Fresh Air Blower (V2). Depending on the version, both of these components can be either replaced separately or only together.
17 Insulation Mat
18 Screw Clips
19 Cable Ties
20 Wiring Harness Bracket