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Measured values and components monitored during operating sequence > < Deactivation of auxiliary heating

A4 Mk3

Auxiliary ventilation
   
Auxiliary ventilation
No.Operating sequence
1ON signal
 
l  Signal from auxiliary heating radio controlled receiver -R64-.
–  Operating and display unit, Climatronic control unit -J255- interrogation (by way of data bus) → Chapter.
–  Actuation of operating and display unit, Climatronic control unit -J255-, -J255-“On”.
 Possible deviations
 
l  The operating and display unit, Climatronic control unit -J255- decides that heating mode is required to attain the specified temperature in the passenger compartment.
–  Auxiliary heating (winter mode)
2OFF signal
 
l  Deactivation signal from auxiliary heating radio controlled receiver -R64-.
–  Information to operating and display unit, Climatronic control unit -J255- (by way of data bus).
–  Actuation of operating and display unit, Climatronic control unit -J255-, -J255-“Off”.

  Note
t  In auxiliary ventilation mode, the supplementary heater control unit -J364- is only required to switch the signal from the remote control receiver for auxiliary heater -R64- to the data bus.
t  If auxiliary ventilation mode has been set in the MMI (Multi Media Interface) or if the operating and display unit, Climatronic control unit -J255- has established that auxiliary heating mode is not required to attain the specified temperature in the passenger compartment, the supplementary heater control unit -J364- is not actuated.
   

Measured values and components monitored during operating sequence > < Deactivation of auxiliary heating