Parts and units for controlling and regulating the air conditioner in the cabin (Audi Q5-8R)

Complex "1" of units and parts on the left side 1. Left seat (driver's seat) with parts for heating and ventilation of the seat heating (temperature sensor front left seat "G344", heated front left seat "Z45") and seat ventilation (control unit and various fans). Seat heating and ventilation are not installed in all vehicles (additional equipment). The seat heating and ventilation settings are adjusted on the climate control and display unit, the Climatronic control unit "J255". The seat heating and ventilation settings are displayed in the measured value block of the climate control and display panel, the Climatronic control unit "J255". The seat heating and ventilation settings are controlled, depending on the vehicle's equipment and design, through different control units (for "J519", "J136" and "J521", depending on the vehicle). If conditions arise under which the seat heating or ventilation for the driver's or front passenger's seats cannot be switched on, this fact is stored as a fault in the onboard power supply control unit "J519", in the seat and steering column adjustment control unit with memory function "J136" or in the front passenger seat adjustment control unit with memory function "J521" (depends on the model and equipment of the car). At present, the data bus for such a vehicle does not send information to the control and display unit, Climatronic control unit "J255", which must be read from the fault memory in the corresponding control unit or in the central control unit for the comfort system "J393". Therefore, if complaints about seat heating or ventilation have arisen, first clear the fault memory of the control units that control the seat heating and ventilation. The seat heating and ventilation level is set on the control and display unit for climate control, Climatronic control unit "J255", this setting is transmitted via the data bus system to the on-board power supply control unit "J519". The specified temperatures for the different seat heating and ventilation levels are stored in the on-board power supply control unit "J519". Therefore, depending on the version of "J519" and the date of production of the car, with the same setting on the control and display unit of the climate, settings, Climatronic control unit "J255", the set temperature for heating and ventilation of the seats may be different (for "J519"); 2. Condensate drain on the left (driver side); 3. Throttle valve. Kick "Down-you" switching on the compressor (via the air conditioning compressor control valve "N₂80") occurs at the request of the engine control unit (data is transmitted through a data bus system). In the measured value block of the control and display panel, the Climatronic control unit "J255", the current state of "N₂80" can be read (climate control systems and, depending on the engine, the injection and ignition systems or the pre-heating and injection systems of diesel vehicles); 4. Diagnostic connection. Perform guided troubleshooting of climate control, installation; 5. Used on-board network "J519". Control of various components, such as rear window heating "Z1" is carried out via the central control unit of the comfort system "J393"; 6. Front left deflector temperature sensor "G385" (only for vehicles with "Komfort" climate control); 7. Defroster deflector / left side glass; 8. Left front panel deflector. Remove and install the front panel deflector; 9. Used with indicator panel on the instrument panel "J285". With outside temperature sensor "G106" in the driver information system (FIS). In case of a complaint about a high display value of the outside air temperature sensor "G106" (due to too high measured value "G17"); 10. Display unit for front display and information control unit "J685". MMI display. Various design and control options, depending on the MMI variant and vehicle equipment. The MMI display shows the functions selected on the display and control unit, Climatronic control unit "J255" (and various additional functions climate, installations). Using the radio button "R" or the control unit of the multimedia system "E380" (depending on the vehicle equipment) you can call up various additional climate control functions, settings and change their settings. Pay attention to the correct correspondence, coding and adaptation of the display and control unit, Climatronic control unit "J255" to the front display and control unit "J523" / control unit for communication electronics 1 "J794" (different designs, depending on the production date and vehicle comp). If incorrect assignment, coding and adaptation are performed, some functions of the air conditioning system may not be displayed or selected on the MMI. Since model year 2010, the start/stop system has been available as an optional extra for certain engines for this vehicle. On vehicles with the start/stop system, depending on the setting on the control and display panel, the Climatronic control unit "J255" prevents the stop function. If, for example, the "Defrost" operating mode is set, the stop function is not available or the stop function is interrupted and the engine is started when this operating mode is selected. The same applies if the difference between the set target temperature and the measured actual temperature exceeds the set value in heating and cooling mode. On vehicles with the start/stop system, an additional coolant pump is installed for the stop function, depending on the equipment and vehicle version. On vehicles with a start/stop system, only the control and display panel, Climatronic control unit "J255" with part number 8T1 820 043 with index "AG" can be installed; 11. Air humidity sensor "G355" (only for vehicles with climate control, "Komfort" version); 12. Radio receiver "R". Depending on the equipment of the car, instead of the radio "R" the control unit of the multimedia system "E380" can be installed. The "Cag" button can be used to call up various additional functions of the climate, settings and change its settings; 13. Temperature sensor fan "V42" and front panel temperature sensor "G56". Installed in the climate control and display unit, installation, Climatronic control unit "J255". The temperature sensor on the instrument panel "G56" is located in the air conditioning control and display unit, Climatronic control unit "J255" (not replaceable separately). If the intermediate part, air ducts to the rear vents of the passenger compartment and the air duct in the rear center console are incorrectly installed on a vehicle with climate control, the "Komfort" version, then warm or cold air may escape through the connection point of the parts and affect the regulation of the climate control, the installation. This air is sucked in by the fan of the temperature sensor "V42" and the measured value of the temperature sensor of the instrument cluster "G56" differs from the actual temperature in the passenger compartment; 14. Control and display module, Climatronic control unit "J255" Option "Basis". Various options (for cars with or without heated seats, with left or right hand drive, depending on the date of manufacture and the vehicle's equipment). The temperature sensor on the instrument panel "G56" is located in the air conditioner control and indicator unit, the Climatronic control unit "J255" (not replaceable separately). The temperature sensor fan "V42" is installed in the climate control and display unit, Climatronic control unit "J255" and cannot be replaced separately. Guided troubleshooting of the climate control and display unit, Climatronic control unit "J255" must be carried out as described. Also pay attention to the additional instructions for the climate control and display unit, Climatronic control unit. The keys and toggle switches are illuminated using light-emitting diodes (LEDs) that cannot be replaced separately. The indicator lights in the buttons and rotary switches, as well as the rotary switches and buttons, cannot be replaced separately; 15. Control and display module, Climatronic control unit "J255" "Comfort" variant. Various variants (for cars with or without seat heating/ventilation, depending on the date of manufacture and vehicle equipment). Temperature sensor "G56" is integrated into the control and display module, Climatronic control unit "J255" (cannot be replaced separately). The temperature sensor fan "V42" is installed in the climate control and display unit, Climatronic control unit "J255" and cannot be replaced separately. Guided fault finding for the climate control and display unit, Climatronic control unit "J255" must be carried out as described in the section. Also observe the additional notes for the climate control and display unit, Climatronic control unit "J255". The various buttons, display fields and rotary switches are illuminated by light-emitting diodes (LEDs) which cannot be replaced separately. The indicator lamps in the buttons and rotary switches as well as the rotary switches and buttons cannot be replaced separately. Ensure that the climate control and display unit, Climatronic control unit "J255" is correctly assigned, coded and adapted to the front climate control and display unit "J523" / control unit for communication electronics 1 "J794". In case of incorrect matching, coding or adaptation, some climate control functions, settings may not be displayed and selected on the MMI display. Used and indicators "J255" with the number 8T1 820 043 up to index "S" are installed on vehicles with a front used and indicators "J523". Used and indicators "J255" with the number 8T1 820 043 from index "T" are installed on vehicles with used communication electronics 1 "J794". To display the operation and select various functions, it is necessary to carry out coding and adaptation in accordance with the vehicle configuration; 16. Used multimedia system "E380". Depending on the equipment of the car, instead of the control unit of the multimedia system "E380" the radio "R" can be installed. The "Cag" button can be used to call up various additional functions of the climate, settings and change its settings. In order for various functions of the climate, settings to be selected on the "E380" and displayed on the display panel of the front control and display unit "J685", it is necessary to install the correct version of the control and display unit, the Climatronic control unit "J255" and correctly code and adapt it

I 1. Defroster/Windshield; 2. Solar radiation intensity photo sensor "G107"; 3. Indirect ventilation deflector / cover of the middle speaker in the front panel. The indirect ventilation deflector is installed only on cars with climate control, the "Komfort" version system. On cars with climate control of the "Basis" version, the cover is installed, and the hole in the air conditioner is closed (various designs of air conditioner and air duct under the front panel); 4. Air conditioner evaporator and mounting parts. Various designs depending on the design and equipment of the car. Cleaning the air conditioner evaporator using the ultrasonic cleaning device for the air conditioner "VAS 6189"; 5. Instrument panel deflector in the center left; 6. Front panel deflector in the center right; 7. Defroster deflector / right side glass; 8. Right front panel deflector; 9. Microfilter (with or without activated carbon filter element). Observe replacement intervals. Different designs depending on the design and equipment of the vehicle; 10. Front right deflector temperature sensor "G386" (only for vehicles with climate control, "Komfort" version); 11. Condensate drain on the right (front passenger side); 12. Right seat (front passenger seat) with parts for heating and ventilation of the seat heating (temperature sensor front right seat "G345", heated front right seat "Z46") and seat ventilation (control unit and various fans). Seat heating and ventilation are not installed in all vehicles (additional equipment). The seat heating and ventilation are adjusted on the climate control and display unit, Climatronic control unit "J255". The seat heating and ventilation control is displayed in the measured value block of the climate control and display unit, Climatronic control unit "J255" Verification: diagnostic complex VAS 5051 in the "Guided fault finding" function. Depending on the equipment and version of the vehicle, the seat heating and ventilation are controlled via different control units (for "J519", "J136" and "J521", depending on the vehicle). If conditions arise under which the seat heating or ventilation for the driver's or front passenger's seats cannot be switched on, this fact is stored as a fault in the onboard power supply control unit "J519", in the seat and steering column adjustment control unit with memory function "J136" or in the front passenger seat adjustment control unit with memory function "J521" (depends on the model and equipment of the car). The data bus for this vehicle currently does not send information to the control and display unit, Climatronic control unit "J255", which must be read from the fault memory in the corresponding control unit or in the central control unit for the comfort system "J393". Therefore, if complaints about seat heating or ventilation have arisen, first clear the fault memory of the control units that control seat heating and ventilation. The seat heating and ventilation level is set on the control and display unit for the climate control system, Climatronic control unit "J255", this setting is transmitted via the data bus system to the on-board power supply control unit "J519". The set temperatures for the different seat heating and ventilation levels are written to "J519". Therefore, depending on the version of "J519" and the date of production of the car, with the same setting on the control and display unit for climate control, settings, Climatronic control unit "J255", the set temperature for heating and ventilation of the seats may be different (for the on-board network control unit "J519"); 13. Rear central console deflector. Installed only with climate control, "Komfort" version (with climate control, "Basis" version the hole in the central console is closed); 14. Rear temperature selection potentiometer "G538". Installed only with climate control, "Komfort" version setting (with climate control, "Basis" version setting, the hole in the center console is closed). The rear temperature selection potentiometer "G538" is an integral part of the deflector and cannot be replaced separately