Precautions when servicing the air conditioning system. Audi A6 (1997 release)

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

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The air conditioning system charged with refrigerant "Freon R12?�, details of the system are under an operating pressure of over 300 bar. A source of danger in the service of the technical staff and unprepared when the equipment is not used for this purpose is a high pressure coolant and chemical exposure.

Car refrigerant "Freon R12?� dangerous for the environment. To protect the environment the firm "Volkswagen" is recommended when depressurization conditioning systems and equipment for waste processing, provided with a certificate of insurance Laboratory (UL).

Fig. 17.1. Location of the heating system: 1 - Channels remove air from the vehicle interior; 2 - the air temperature sensor (installed only on vehicles with diesel engines); 3 - Air recirculation flap; 4 - pollen filter

Fig. 17.2. Location of heating and air conditioning 1 - Channels remove air from the vehicle interior; 2 - air-conditioning compressor; 3 - C compressor magnetic clutch N25; 4 - capacitor; 5 - air temperature sensor G17; 6 - the gauge of pressure in the air conditioning system F129; 7 - tank; 8 - the valve of the condensate drain; 9 - pressure limiter; 10 - connection for measuring, draining and filling of the refrigerant air conditioning systems; 11 - connection for measurement and discharge refrigerant air conditioning systems; 12 - pollen filter; 13 - Air flap; 14 - air recirculation flap; 15 - sunroof with solar cells; 16 - air quality sensor G238; 17 - Radiator fan control unit J293; 18 - pressure sensor G65; 19 - air conditioning compressor; 20 - a control valve N280

Fig. 17.3. Location of the heating system in the car: 1 - control cable Left flap; 2 -additional heater (only on vehicles with diesel engines); 3 - radiator heater; 4 - diagnostic connector; 5 - left ventilation grille; 6 - left nozzle defrosting; 7 - nozzle defrosting the windscreen; 8 - heater controls thermotronic J214; 9 - heater; 10 - nozzle supplying air to the foot; 11 - the engine control central flap V70; 12 - a cable management right flap; 13 - the engine control defrost flap V107; 14 - the heater fan V2; 15 - right ventilation grille; 16 - right nozzle defrosting; 17 - the engine control air recirculation flap V154; 18 - resistor N24 fan heater; 19 - central ventilation grille

WARNINGS

The air conditioning system should be serviced by technicians trained in safe working with the proper equipment and compliance with the rules of depressurization, the collection and storage of automotive refrigerant.

Avoid contact with skin refrigerant.

When working near the air-conditioning system, wear goggles.

After contact with the refrigerant to the skin or eyes, do not rub the affected area, rinse immediately with cold water for at least 15 minutes and consult a physician. Self-medication is not permitted.

The new refrigerant cylinder is stored under pressure. Keep the bottle at a temperature no higher than 50 ?� C. Take measures to avoid the fall of the balloon from a height or other situations that could cause damage.

Work should be done in a well-ventilated area. The refrigerant evaporates quickly, prevents access of oxygen and makes breathing difficult.

Refrigerant gas is heavier than air and relatively quickly should gather below, for example, under the car.

On combustion, forms toxic gas refrigerant. Keep refrigerant away from open sources of fire. Do not smoke. When using flaming leak detector avoid smoke inhalation.

When carrying out welding work near the air-conditioning system, always remove it from the refrigerant. Electric welding near the refrigerant pipe of the refrigerant can cause decomposition under the action of ultraviolet radiation.

Do not expose the details of the air conditioning system to heat or open flame. Overheating can lead to increased pressure in the system and inflammation.

Cleaning of the condenser or evaporator using steam is not allowed to be used only cold water or compressed air.

A WARNING

For normal operation of the ventilation system does not cover the passenger compartment air ducts - do not load the trunk to the top shelf.

NOTE

For normal operation of the ventilation system does not cover the passenger compartment channel venting from the interior of the car 1 (Fig. 17.1, 17.2, 17.3) - do not load the trunk to the top shelf.

Removing the compressor 2 (Fig. 17.2), the air conditioner condenser 4, the reservoir 7 and 9, pressure limiter can be carried out only after the removal of the refrigerant from the air conditioning system.

On cars since 2002, depending on the version installed 2 air conditioning compressor with magnetic coupling N 25 (Pos. 3) or the air conditioner compressor 19 with a control valve N280 (pos. 20).

On the cars before 2001, install the sensor 6 pressure conditioning system F129, and since 2002 - the pressure sensor 18 G65.

The control unit 17 Radiator fan J293 is set in 2002 on cars with engines of 2.0 and 3.0 liters.