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REPAIR MAINTENANCE OPERATION OF MOTOR VEHICLES
Audi A6 (1997 release)

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Audi A6
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Audi
A6
General Information
Operation of the vehicle
Maintenance
Engines
Ignition, fuel injection and exhaust of gasoline engines
The power supply system, and preheating the exhaust gases of diesel engines
Lubrication System
Cooling system
Coupling
Transmission
The front wheel drive shafts
Design features four-wheel drive transmission
Suspension
Wheels and tires
Steering
Brakes
Body
Heating and air conditioning
Overview
Precautions when servicing the air conditioning system
Heater controls
ECU E87
The central air vents
Left louver
Air vents windscreen
The left and right air vents
Fan heater
The pressure sensor G65 conditioner
Bracket C compressor
Electrical
Electric schemes
 


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Overview



Air supplied the ventilation system in the vehicle interior can be heated or cooled depending on the conditions of comfort, selectable by the driver and passengers. Heating and air-conditioning separate, but their units and components are located inside the vehicle in a common housing under the dashboard. The entire flow of air submitted to salon is sent for heating or cooling through the same casing. The temperature and the air flow rate is regulated by the same controls.
The heat generated when the engine is transmitted to the radiator coolant heater, located in the cabin. The supplied air flow from the ventilation system passes through the cooler and heated by the heat of the engine coolant flowing in the radiator.
The air conditioning system removes excess heat and moisture from the interior. Refrigerant circulating a liquid in a part of the system where higher pressure is maintained, evaporated and gasified in the area of low pressure. When expanding gas cools accompanied by removal of heat from the air supplied by the fan into the passenger compartment, and lowering its temperature. Further, as it passes through the condenser coolant gives absorbed heat to the surrounding air. The cycle of heat transfer continues indefinitely as refrigerant in a closed circuit. Of the air supplied to the room, the moisture is removed by condensation on the refrigerating compartment evaporator.

A WARNING
The air conditioning system is a potential danger. With its service required to comply with certain rules. For most of the operations of repair and maintenance of the air conditioning system requires special equipment and certain skills.

Ventilation is provided by forming a body through-flow of air. Fresh air gets inside the vehicle through the air intake, located in front of the windshield. The flow of air from the interior out through the exhaust ports on the sides of the body.
The air flow rate is regulated by a fan.
The heating system of air mixed type is designed to quickly respond to changes in temperature in the passenger compartment and reducing the temperature fluctuations of the heated air.
To avoid falling into the interior of the vehicle provided fresh air recirculation mode.




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Precautions when servicing the air conditioning system

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