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
      14.14.1. Compressor
      14.14.2. Conditioner thermostat
      14.14.3. Drainage valve
   + 14.15. Basic provisions on conditioner service
+ 15. Electric equipment
+ 16. Body
+ 17. Electric circuits


Repair B3-B4/Passat B3-B4 Volkswagen Passat>> Systems of heating, ventilation and conditioning>> Central air units>> Drainage valve
In process of air cooling from salon in the evaporator water collects. Moisture from air is condensed on cold walls of the evaporator in the form of water drops. Water flows down from the evaporator via the drainage valve which passes through a partition of a motor compartment.

Fig. 14.21. Drainage valve: 1–evaporator casing; 2–valve case; 3–shestigrannik; 4–valve uvula; 5–wall of a motor compartment


For removal of the valve lift a uvula 4 (fig. 14.21) , insert a shestigrannik of necessary dimension, turn the valve on 1/8 turn (or on 45 °) and extend the valve from a casing. Clear the valve case of dirt. Be convinced that the valve is not hammered by dirt, wax or a lining material.