The 2C-Climatronic System - Volkswagen Passat 2006 Service Training

Heater and air conditioner

The 2C-Climatronic system

In the 2C-Climatronic system, the interior is sub-
divided into two climatic zones. This means that the
temperatures desired on the driver and front
passenger side can be set independently of each
other in the range from 16 °C to 29.5 °C. The climatic
zones are separated by two temperature flaps inside
the air conditioner unit.
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All air distribution and temperature control flaps are
actuated via positioning motors with an integrated
feedback potentiometer. Maintenance of the preset
interior temperature and optimal air distribution are
thereby controlled and monitored by the Climatronic
control unit.
The 2C-Climatronic system can be operated in
automatic or manual mode.
In addition to the Climatic system, 2C-Climatronic is
Climatronic control panel
fitted with a fresh air flow flap, which is closed as of
100 km/h as speed increases, in order to keep the
volume of fresh air which is supplied constant. One
further function which is available is speed-
dependent blower reduction, which reduces the air
conditioner's flow noises at low speed. In cooling
mode, this is compensated by lowering the vent
temperature and by raising the ventilation
temperature in heating mode.
To prevent the windscreen from misting when the
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compressor is switched off and the windscreen wipers
Interior temperature sensor
are switched on, the defrost flap is automatically
Heated windscreen
opened further to conduct more air to the windscreen.
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