Temperature Door Actuation, Checking: Notes

WARNING: This page is about a different variant/trim than selected.

Refer to INFORMATION ON CHECKING HEAT OUTPUT AND TOOLS REQUIRED .

Test Requirements

Coolant Circuit Bled According To Specifications. Refer to COOLANT CIRCUIT FILLING AND BLEEDING [CRUA, DEJA] / COOLANT, FILLING (BLEEDING) [CNSB, CNTC] .
All air guides, covers and seal OK and properly installed
Seal between engine compartment, engine hood and plenum chamber is OK and installed correctly. To check. Refer to OVERVIEW - BULKHEAD / OVERVIEW - PLENUM CHAMBER COVER ; (Plenum Chamber Cover Overview).
The air flow through the dust and pollen filter is not affected by dirt in the filter. To check. Refer to DUST AND POLLEN FILTER, REMOVING AND INSTALLING .
The air intake for the A/C unit (in fresh-air and recirculated-air modes) is not affected by dirt or retrofitted components.
If installed: the After-Run Coolant Pump -V51- / Heater Support Pump -V488- (different designations, depending on the engine) and the Coolant Shut-Off Valve -N82- function are OK.
The vehicle is not exposed to sunlight.
The A/C system cooling output was checked and is OK. Refer to COOLING OUTPUT, CHECKING .
Engine is warm: coolant temperature is greater than 80 °C (176 °F).
The DTC memory for the Climatronic Control Module -J255- control head was checked and erased and the basic setting was performed. Use the Vehicle Diagnostic Tester in the"Guided Fault Finding" function.
The coding and adaptation of the Climatronic Control Module -J255- control head was checked. Use the Vehicle Diagnostic Tester in the"Guided Fault Finding" function.
For vehicles with a TDI engine, the actuation and function of the Auxiliary Heater Heating Element -Z35- is OK. Use the :Vehicle Diagnostic Tester in the"Guided Fault Finding" function.
Vehicles with a gasoline engine and an Auxiliary Heater Heating Element -Z35- (introduction not yet finalized): The actuation and function of the Auxiliary Heater Heating Element -Z35- is OK. Use the :Vehicle Diagnostic Tester in the"Guided Fault Finding" function.
Vehicles with a parking heater: actuation and function of the parking heater is OK. Use the Vehicle Diagnostic Tester in the"Guided Fault Finding" function.

Checking

-- Close the doors, the engine hood, the windows, the sunroof and the rear lid.

-- Open all instrument panel vents.

-- Start the engine.

NOTE:

If on a vehicle the Start-Stop-function the engine does not start or was switched off via the "Start-Stop-function", for example by changing the temperature setting on the Climatronic Control Module -J255- control head to "LOW" and activating the "A/C" function, start the engine.

-- Motor starts (or starts after changing the settings):

Set the temperature preset "cold" via the regulators -1 and 7- : "LO" for the driver and front passenger side in the display -3- on the Climatronic Control Module -J255-.

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Press the buttons -5 and 6- for the "instrument panel vent" and "footwell vent".
Turn the fresh air blower regulator -9- to the maximum speed.
A/C compressor on: the indicator lamp in the AC (or A/C ) button -8- illuminates.
"eco" mode not activated: Nothing appears in the display -3- on the Climatronic Control Module -J255-.

-- Let the A/C system run for several minutes at maximum cooling output while the engine is running.

-- "Read measured values" for the Left Vent Temperature Sensor -G150- /Right Vent Temperature Sensor -G151- and the Evaporator Vent Temperature Sensor -G263- using the Vehicle Diagnostic Tester in the"Guided Fault Finding" function.

-- Compare the Left Vent Temperature Sensor -G150- /Right Vent Temperature Sensor -G151- /Footwell Vent Temperature Sensor -G192- measured values with the measured value for the Evaporator Vent Temperature Sensor -G263-.

Specified Values:

The measured values for the Left Vent Temperature Sensor -G150- /Right Vent Temperature Sensor -G151- /Footwell Vent Temperature Sensor -G192- must not be smaller and after five minutes be greater than maximum 7 °C (44.6 °F) than the value for the Evaporator Vent Temperature Sensor -G263-. Use the Vehicle Diagnostic Tester in the"Guided Fault Finding" function.
The deviation between the two measured values for the Left Vent Temperature Sensor -G150- /Right Vent Temperature Sensor -G151- must not be greater than 8 °C (46.4 °F).

NOTE:

Using a hand, check if there is actually air coming out of the activated vents.

-- Set the highest possible temperature for the driver side.

Courtesy of AUDI OF AMERICA, LLC

Set the temperature preset "warm" via the regulator -1- : "HI" for the driver side in the display -3- on the Climatronic Control Module -J255-.

-- "Read measured values" for the Left Vent Temperature Sensor -G150- /Right Vent Temperature Sensor -G151- /Footwell Vent Temperature Sensor -G192-.

Specified values with an engine temperature of about 90 °C (194 °F):

The temperature increases to above 55 °C (131 °F) in the display field with the measured value for the Left Vent Temperature Sensor -G150- /Footwell Vent Temperature Sensor -G192-.
The temperature increases less than 10 °C (50 °F) in the display field with the measured value for the Right Vent Temperature Sensor -G151-.