Audi A3

since 1997 of release

Repair and car operation

Audi A3
+ Maintenance instruction
+ Current leaving and service
+ Engine
- Systems of cooling, heating
   + System of cooling of the engine
   - Systems of ventilation, heating and air conditioning
      General information and security measures
      Removal and installation of air deflectors
      Removal and installation of a nozzle of the region of feet
      Removal and drive installation lamp heater/replacement
      Removal and installation of cables of a drive of management of a heater
      Removal and installation of the fan of fresh air
      Removal and installation of the additional resistor
      Removal and compressor installation
      Conditioner diagnostics on codes on the display of the block of its management
+ the Power supply system and production of the fulfilled gases
+ engine Electric equipment
+ Manual box of gear shifting
+ Automatic transmission and models with a full drive
+ Coupling and power shafts
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment
+ Elektroskhema




Type of the conditioner

1–evaporator case
3–plait of wires of the conditioner
5–screw clip
7–nozzle of the region of feet
8–connecting bar
9–electric motor of a drive of the central zaslonka
10-connecting bar
11-electric motor of a drive of a temperature zaslonka
With the black lever
12-electric motor of a drive of a zaslonka of the area of feet/defrosting of glasses
13-the temperature sensor on an exit around feet
14-connecting bar
15-box heater zaslonok
16-the heat exchanger of cooling liquid
17-air channel of defrosting of glasses

Principle of operation of the conditioner

The conditioner compressor through maple a belt is given in rotation from a cranked shaft of the engine. He creates pressure to the 30th bar in a contour of cooling of installation owing to what the coolant representing gas, heats up. In the condenser the coolant is cooled with air proceeding outside (cooling air remains in environment). Thereof the warmed-up coolant is condensed, turning into liquid. Having big pressure, it is passed through a throttle therefore its pressure falls. After that the coolant evaporates in a contour, at the same time strongly being cooled. In the evaporator the coolant selects heat from air blown through it. Thereof air is cooled. The cooled air arrives in car salon. As a result of heating in the evaporator the coolant turns into gas and under low pressure arrives in the compressor.