Components In Rear
Components In Rear
• Observe the notes regarding the A/C system => [ A/C System Control and Regulation Components Inside Passenger Compartment ] A/C System Control and Regulation Components Inside Passenger Compartment.
1 Rear A/C Display Control Head (E265)
• The rear A/C unit and the rear A/C display control head are optional equipment.
• Allocation for various versions (for vehicles without or with seat heating / seat ventilation, with and without rear A/C system). Refer to Electronic Parts Catalog (ETKA).
• Removal and installation, refer to => [ Rear A/C Control Head (E265) ] Rear A/C Control Head (E265).
• There is currently no child safety planned for the rear A/C display control head (introduction not yet finalized). If the child safety system for the rear A/C display control head is offered in the future and is active in the vehicle, the setting of the rear A/C system and the seat heating/seat ventilation cannot be changed by the rear A/C display control head (when a button or rotary switch is operated, three lines appear in both displays). The settings can then only be modified via the Climatronic control module (J255) front A/C display control head and the MMI Terminal. Refer to the Owner's manual.
• Also observe the additional information regarding the rear A/C display control head, refer to => [ Rear A/C Control Head (E265) ] Rear A/C Control Head (E265).
• Perform the Guided Fault Finding of the rear A/C display control head using the Vehicle Diagnostic Tester in the "Guided Fault Finding" function.
• Buttons and display fields are illuminated by Light Emitting Diodes (LED), cannot be replaced.
• When replacing the rear A/C display control head, ensure correct allocation with respect to the Climatronic control module (J255). If the allocation is incorrect, various functions of the rear A/C system, for example, may not be able to be displayed and selected. Refer to Electronic Parts Catalog.
• Certain A/C system functions can be switched on and off via the MMI (Multi Media Interface) under the "A/C system" function in the "car"/"car systems" menu. The A/C system control can also be influenced via presettings in the MMI (Multi Media Interface) under the "A/C system" function in the "car"/"car systems" menu. Therefore, first check the presetting in the MMI in the case of a problem with these components, refer to Infotainment/MMI operating instructions.
2 Right Rear Upper Body Vent Temperature Sensor (G636)
• Installed only in vehicles with a rear Climatronic A/C display control head (E265).
• Removal and installation, refer to => [ Right Rear Upper Body Vent Temperature Sensor (G636) ] Right Rear Upper Body Vent Temperature Sensor (G636)
• Check the right rear upper body vent temperature sensor using the Vehicle Diagnostic Tester in the "Guided Fault Finding" function.
3 Right Rear Footwell Vent Temperature Sensor (G638)
• Installed only in vehicles with a rear Climatronic A/C display control head (E265).
• Removal and installation, refer to => [ Right Rear Footwell Vent Temperature Sensor (G638) ] Right Rear Footwell Vent Temperature Sensor (G638).
• Check the right rear footwell vent temperature sensor using the Vehicle Diagnostic Tester in the "Guided Fault Finding" function.
4 Air Ionization System Button (E677)
• Clipped into the B-pillar trim.
• Not installed in all vehicles.
• The air ionization system is only provided in vehicles with a rear Climatronic A/C display control head (E265) and only planned for market specific vehicles. Refer to Audi sales program.
• The air ionization system is only provided in vehicles with a rear A/C unit and only for a certain country version.
• The Air ionization system button and the air ionization system control module (J897) are always installed in the B-pillar behind the front passenger seat (in vehicles with steering on the left side in the right B-pillar).
• Remove the B-pillar trim.
5 Vent In Right B-Pillar
6 Air Ionization System Control Module (J897)
• Installed on the air duct to the vent in the B-pillar
• Removal and installation, refer to => [ Air Ionization System Control Module (J897) ] Service and Repair.
• Not installed in all vehicles.
• The air ionization system is only provided in vehicles with a rear Climatronic A/C display control head (E265) and only planned for market specific vehicles. Refer to Audi sales program.
• The air ionization system button (E677) and the Air ionization system control module are always installed in the B-pillar behind the front passenger seat (in vehicles with steering on the left side in the right B-pillar).
7 Vent In The Left B-Pillar
8 Vent In Center Console, Rear
9 Rear Heated Seat Regulating Switch
• Seat heater and seat ventilation are not installed in all vehicles (optional equipment).
• These switches are installed only in vehicles without a rear A/C display control head.
• There are various descriptions ( left rear heated seat regulating switch (E128) , left seat heating button (E653) or left rear heated seat switch (E77) and right rear heated seat regulating switch (E129) , right seat heating button (E654) or right rear heated seat switch (E78) ) depending on the version of the vehicle (different descriptions depending on the version and date of manufacture of the vehicle).
• The seat heating and seat ventilation are activated depending on the vehicle equipment and version via different control modules. Refer to => [ Seat Heating and Ventilation, Checking ] Seat Heating and Ventilation, Checking, and the Vehicle Diagnostic Tester in the "Guided Fault Finding" function (for the vehicle electrical system control module (J519) ).
• Repairing the seat heating and the seat ventilation.
• For information about seat heating and ventilation, refer to => [ Seat Heating and Ventilation, Checking ] Seat Heating and Ventilation, Checking.
• These switches are currently not OBD capable. However, seat heating activation only occurs when the vehicle electrical system control module provides the corresponding release. Check using the Vehicle Diagnostic Tester in the "Guided Fault Finding" function and.
• Check the function of the rear seat heating in vehicles without a rear A/C display control head using the Vehicle Diagnostic Tester in the "Guided Fault Finding" function (for the vehicle electrical system control module).
• Check the function of the rear seat heating and rear seat ventilation in vehicles with rear A/C display control head using the Vehicle Diagnostic Tester in the "Guided Fault Finding" function (for the A/C system).
• In vehicles with rear A/C display control head, seat heating and seat ventilation for the rear seats are set via the rear A/C display control head. The rear A/C display control head then activates the rear seat heating and rear seat ventilation as a function of the vehicle equipment and version.
10 Right Rear Upper Body Vent Position Sensor (G631)
• Component of the vent in the rear center console.
• Check the position sensor in right rear upper body vent using the Vehicle Diagnostic Tester in the "Guided Fault Finding" function.
• After replacement of the potentiometer (for adapting the end stops), adapt the rear A/C display control head and the Climatronic control module (J255) using the Vehicle Diagnostic Tester in the "Guided Fault Finding" function.
11 Position Sensor In Right Rear Upper Body Vent (G630)
• Component of the vent in the rear center console.
• Check the position sensor in right rear upper body vent using the Vehicle Diagnostic Tester in the "Guided Fault Finding" function.
• After replacement of the potentiometer (for adapting the end stops), adapt the rear A/C display control head and the Climatronic control module (J255) using the Vehicle Diagnostic Tester in the "Guided Fault Finding" function.
12 Rear Air Distributor Housing With Attachments
• Only installed on vehicles without rear heating and A/C unit.
• Different versions depending on the vehicle version and equipment level, refer to Electronic Parts Catalog.
• Air duct in the rear air distributor housing and in the rear of the vehicle, refer to => [ Air Duct In Rear Air Distributor Housing ] Air Duct In Rear Air Distributor Housing and => [ Air Ducts and Vents In Rear Passenger Compartment ] Air Ducts and Vents In Rear Passenger Compartment.
• Refer to => [ A/C Unit/Rear Air Distributor Housing Components ] A/C Unit/Rear Air Distributor Housing Components.
• Removal and installation, refer to => [ Rear Air Distributor Housing ] Rear Air Distributor Housing.
13 Rear A/C Unit With Evaporator And Attachments
• The rear A/C unit and the rear A/C display control head are optional equipment.
• Different versions depending on the vehicle version and equipment level, refer to Electronic Parts Catalog.
• Air duct in the rear A/C unit and in the vehicle, refer to => [ Air Duct In Rear Heating and A/C Unit ] Air Duct In Rear Heating and A/C Unit and => [ Air Ducts and Vents In Rear Passenger Compartment ] Air Ducts and Vents In Rear Passenger Compartment.
• Clean the rear A/C system evaporator with the ultrasound A/C cleaner (VAS 6189). Refer to => [ Cleaning Front and Rear A/C System Evaporator ] Service and Repair.
• Rear heating & A/C unit, removing and installing, refer to => [ Rear Heating and A/C Unit ] Rear Heating and A/C Unit.
• Disassemble and assemble the rear A/C unit, refer to => [ Rear Heating and A/C Unit ] Rear Heating and A/C Unit.
• Bleed the rear coolant circuit after installation of the heater core, refer to => [ Coolant Circuit, Bleeding ] Coolant Circuit, Bleeding.
14 Left Rear Upper Body Vent Temperature Sensor (G635)
• Installed only in vehicles with a rear A/C display control head.
• Removal and installation, refer to => [ Left Rear Upper Body Vent Temperature Sensor (G635) ] Left Rear Upper Body Vent Temperature Sensor (G635).
• Check the Left Rear Upper Body Vent Temperature Sensor using the Vehicle Diagnostic Tester in the "Guided Fault Finding" function.
15 Left Rear Footwell Vent Temperature Sensor (G637)
• Installed only in vehicles with a rear A/C display control head.
• Removal and installation, refer to => [ Left Rear Footwell Vent Temperature Sensor (G637) ] Left Rear Footwell Vent Temperature Sensor (G637).
• Check the Left Rear Footwell Vent Temperature Sensor using the Vehicle Diagnostic Tester in the "Guided Fault Finding" function.
16 Rear Seat (With Components For Seat Heating and Seat Ventilation)
• Components for seat heating ( left rear heated seat temperature sensor (G94) , right rear heated seat temperature sensor (G95) , left rear bench seat heating element (Z10) , left rear backrest heating element (Z11). etc.) and seat ventilation (control module and various fans).
• The seat heating and seat ventilation are not installed in all vehicles (optional equipment).
• The seat heating is set via different switches (depending on the vehicle equipment) - item 9 => [ (Item 9) Rear Heated Seat Regulating Switch ].
• In the case of vehicles with a rear A/C display control head, the seat heating and seat ventilation are always set via the rear A/C display control head. The activation of the seat heating and seat ventilation is displayed in the read measured values function of the Guided Fault Finding of the rear A/C display control head. Check using the Vehicle Diagnostic Tester in the "Guided Fault Finding" function.
• The seat heating and seat ventilation are activated depending on the vehicle equipment and version via different control modules. Refer to => [ Seat Heating and Ventilation, Checking ] Seat Heating and Ventilation, Checking, and the Vehicle Diagnostic Tester in the "Guided Fault Finding" function (for the vehicle electrical system control module, memory seat/steering column adjustment control module, and front passenger memory seat control module, depending on the vehicle).
• Repair the seat heating and the seat ventilation.
• For information about seat heating and seat ventilation, refer to => [ Seat Heating and Ventilation, Checking ] Seat Heating and Ventilation, Checking.
• If there is a condition in which the heating or ventilation of the seats cannot be switched on, this is stored as a malfunction in the vehicle electrical system control module (J519) , in the memory seat/steering column adjustment control module (J136) or in the front passenger memory seat control module (J521) (depending on the vehicle type and the vehicle equipment). In this vehicle, information stating that the event memory in the relevant control module or in the comfort system central control module (J393) needs to be read out is currently not sent via the data bus to the Climatronic control module/rear A/C display control head. Check using the Vehicle Diagnostic Tester in the "Guided Fault Finding" function. In the event of a complaint regarding seat heating or seat ventilation, first check the event memory of the control modules activating the seat heating and seat ventilation.
• The seat heating and seat ventilation setting is set on the Climatronic control module/rear A/C display control head. This setting is transmitted via the data bus to the vehicle electrical system control module. The specified temperatures for the different seat heating and seat ventilation settings are stored in the vehicle electrical system control module. Depending on the version of the vehicle electrical system control module and the vehicle production period, the target temperature for the seat heating and seat ventilation can differ with the same setting on the Climatronic control module/rear A/C display control head. Check using the Vehicle Diagnostic Tester in the "Guided Fault Finding" function (also for the vehicle electrical system control module).