VW Passat repair


+ 1. Ekspluatatsiiya of the car
+ 2. Maintenance
+ 3. Engines
- 4. Cooling system
   4.1. General information
   4.2. Check of tightness of hoses of the cooling system
   4.3. Check of level of cooling liquid
   4.4. Replacement of cooling liquid
   4.5. Washing of the cooling system
   4.6. General control of the cooling system
   - 4.7. Removal and installation of elements of the cooling system
      4.7.1. Radiator
      4.7.2. Thermostat
      4.7.3. Cooling system pump
      4.7.4. Cooling system fan
      4.7.5. Sensor of turning on of the electric fan
      4.7.6. Sensor of temperature of cooling liquid
      4.7.7. Thermorelay of system of injection of fuel
      4.7.8. Replacement of technological caps
      4.7.9. Heater
      4.7.10. Control unit of a heater
+ 5. Power supply system
+ 6. System of ignition
+ 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
+ 15. Electric equipment
+ 16. Body
+ 17. Electric circuits



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Repair Volkswagen Passat B3-B4/Passat B3-B4>> Cooling system>> Removal and installation of elements of the cooling system>> Sensor of temperature of cooling liquid
Arrangement of sensors of temperature of cooling liquid:
on SOHC engines the sensor is installed in a final branch pipe of cooling liquid, on the left side of a head of the block of cylinders;
on PB, PF engines and 2E the sensor is installed on a connecting branch pipe;
on RP engines from a reverse side of a connecting branch pipe;

Fig. 4.7. DOHC engine cooling system pump: 1 – bolt; 2 – generator arm; 3 – pulley; 4 – bolt; 5 – cooling system pump; 6 – sealing ring; 7 – top hose of a radiator; 8 – connector; 9 – a hose from a heater; 10 – a hose to a heater; 11 – a hose to a broad tank; 12 – sensor of temperature of cooling liquid; 13 – sealing ring; 14 – pipe; 15 – oil heat exchanger; 16 – lower hose of a radiator; 17 – laying; 18 – thermostat


on DOHC engines the sensor is installed in a final branch pipe (see fig. 4.7 ), on a back surface of a head of the block of cylinders;
on all models electric socket of the sensor of black color.
Carry out removal and installation of the sensor of temperature of cooling liquid in the following order:
– partially merge cooling liquid from the cooling system;
disconnect a wire from the negative plug of the rechargeable battery;
– remove the electric plug;
– remove the fixing bracket and get the sensor of temperature of cooling liquid from a branch pipe;
– take a sealing ring of round section from a branch pipe;
– at assembly establish a new sealing ring.
You make installation of the removed elements in the sequence, the return to removal.