Audi A4 2005 - Heating and Air Conditioning; System Overview and Adaptation

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General
The air conditioning concept familiar from the Audi
A4 ´01 was largely adopted into the Audi A4 ´05.
However, the software has been expanded to allow
the air-conditioning parameters to be adapted to
suit the individual preferences of the vehicle
occupants. As a result, several functions can now be
adjusted more finely. All adjustments can be made
in the service workshop using the VAG diagnostic
tester VAS 5051/5052. Air outlet temperatures, for
example, can be increased or decreased slightly to
perceived temperatures comfortable to the vehicle
occupants. Partial air flows can also be directed to
various outlets.
The heating / air conditioning system
New features of the air conditioning system in the Audi A4
Reference
For general information about the
design and function of the air
conditioning system in the Audi
A4 ´05, please refer to Self-Study
Programme 254,
Audi A4 ´01 - Technology.
Adaption
The so-called physiological adaption of the air conditioning system in the new Audi A4 ‘05 is performed using
the additional adaption channels. Incidentally, ' physiology' is a medical term describing how stimuli are
perceived by the cardiovascular system and how humans feel.
Adaption "1" on channel 10 directs a minimum air flow to the windscreen inner surface via the defroster vent.
This prevents fogging of the windscreen. Such adjustments can also be made for the footwell outlets. The
adaption function also allows nominal out-flow temperature and fresh air blower speed to be adjusted more
finely, and provides extended air recirculation independent of the signal from the air quality sensor G263.
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