VW Passat repair


+ 1. Ekspluatatsiiya of the car
+ 2. Maintenance
+ 3. Engines
+ 4. Cooling system
+ 5. Power supply system
+ 6. Ignition system
+ 7. Coupling
+ 8. Transmission
+ 9. Drive of forward wheels
+ 10. Suspension brackets
+ 11. Steering
+ 12. Brake system
+ 13. Wheels and tires
- 14. Systems of heating, ventilation and conditioning
   14.1. Technical characteristics
   14.2. General information
   14.3. Central air with a circulating coolant
   14.4. Precautionary measures at central air service
   + 14.5. Search of malfunctions
   14.6. Conditioner filling by a coolant
   14.7. Search and elimination of malfunctions in heating and conditioning systems
   14.8. Airdistributing box
   14.9. Fan
   14.10. Cover of airinflow and vacuum system
   14.11. Vozdukho-priyemnik
   + 14.12. Heater fan
   + 14.13. Management cables
   + 14.14. Central air units
   - 14.15. Basic provisions on conditioner service
      14.15.1. Conditions of carrying out tests of operability of the conditioner
+ 15. Electric equipment
+ 16. Body
+ 17. Electric circuits


Repair B3-B4/Passat B3-B4 Volkswagen Passat>> Systems of heating, ventilation and conditioning>> Basic provisions on conditioner service>> Conditions of carrying out tests of operability of the conditioner
All ventilating channels should be open.
The engine should be heated-up and work at frequency of rotation about 2000 mines-1.
The fan should work on high speed «4».
The handle of a temperature regulator should be transferred to the situation "COLD".
The switch «Move А/С» should be translated in the situation "On".
Glasses should be in the doorway lifted, doors are closed.
Indications of temperature should be read out on the left ventilating channel after compressor switching off.

Fig. 14.22. Dependence of air temperature on an exit from the conditioner from temperature of zabortny air


Fig. 14.23. Dependence of pressure in the conditioner (a site of low pressure) from temperature of zabortny air. The top curve — turning on of the compressor by the conditioner thermostat, bottom — switching off


Fig. 14.24. Dependence of pressure in the conditioner (a site of a high pressure) from temperature of zabortny air. The fan on high speed of rotation turns on in a point And (pressure growth) and is switched off in a point In (pressure drop)


Serviceable central air should provide the characteristics provided on fig. 14.22, 14.23, 14.24 .







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