VW Passat B5

since 1996 release

Repair and operation of the car



Foltsvagen Passat B5
+ Maintenance instruction
+ 1. Maintenance
+ 2. Engines
- 3. Cooling system
   3.2. Dolivka of cooling liquid
   3.3. Composition of mix of cooling liquid
   3.4. Replacement of cooling liquid
   3.5. Thermostat
   3.6. Radiator
   3.7. Water pump (engines 1,8-I and 1,6-I ADP)
   3.8. Cooling system hoses
   3.9. Malfunctions of the cooling system
+ 4. Fuel system
+ 5. Engine management
+ 6. Exhaust system
+ 7. Transmission
+ 8. Running gear
+ 9. Steering
+ 10. Brake system
+ 11. Body
+ 12. Heating, ventilation
+ 13. Electric equipment







3.9. Malfunctions of the cooling system

GENERAL INFORMATION

REASON
ELIMINATION METHOD
Temperature of cooling liquid very high. At the same time on a combination of devices the control lamp burns
Insufficiently cooling liquid in the cooling system Check and, if necessary, bring the level of cooling liquid to norm. At continuous losses of cooling liquid define and remove the cause of an effluence of cooling liquid.
The thermostat does not open Check whether the cooling system hoses connected to a radiator heat up. If hoses cold, remove, check working capacity and, if necessary, replace the thermostat. Alternatively, remove the thermostat. At the same time the engine will get warm to the normal worker
The external surface of a radiator is polluted Blow a radiator compressed air from a motor compartment.
Passability of a radiator due to adjournment on an internal surface of a radiator of a limy raid or a rust is reduced Replace a radiator.
The radiator fan does not work Replace a driving belt of a viskomufta of the fan of a radiator.
On the additional fan with the electric drive check reliability of connection of electric sockets to the thermal sensor and the electric motor of the fan. Check serviceability of the engine of the fan of a radiator for what disconnect the electric socket from the thermal sensor and close contacts of the socket. At the included ignition the fan of a radiator has to work. Otherwise replace the radiator fan electric motor.
The valve in a cover of a broad tank is faulty Check the valve under pressure.
The index of temperature of cooling liquid is faulty Check serviceability of the index and the sensor of temperature of cooling liquid.
The water pump does not work Replace a belt of the drive of the water pump.