since 1997 of release

Repair and car operation

Foltsvagen Golf 4
+ 1. Maintenance instruction
+ 2. Engine
- 3. Cooling system
   3.1. Dolivka of cooling liquid
   3.2. Structure of a mix of cooling liquid
   + 3.3. Replacement of cooling liquid
   - 3.4. Thermostat
      3.4.1. Removal
      3.4.2. Check of operability of the thermostat
      3.4.3. Installation
   + 3.5. Radiator and radiator fan
   + 3.6. Water pump of petrol engines
   + 3.7. Water pump of diesel engines
   3.8. Hoses of system of cooling
   3.9. Malfunctions of system of cooling
+ 4. Fuel system
+ 5. Exhaust system
+ 6. Ventilation and heating system
+ 7. Coupling
+ 8. Transmission
+ 9. Suspension brackets and power shafts
+ 10. Steering
+ 11. Wheels and tires
+ 12. Brake system
+ 13. Body
+ 14. Electric equipment and electroschemes

3.4. Thermostat

3.4.1. Removal


Thermostat arrangement on petrol engines 1,6-/1,8-I


2–sealing ring;

3–connecting union;


Thermostat arrangement on diesel engines


2–connecting union;

3–sealing ring;


Four-cylinder petrol engines
1. The thermostat is located in a vyvodny branch pipe of system of cooling ahead of the block of cylinders. On engines 1,4-I the thermostat is established in the separate case which incorporates to the bottom hose of a radiator.
2. Merge cooling liquid from cooling system.
The petrol engine 1,8-I Turbo with the conditioner
3. Remove the top casing of the engine.
4. Remove poliklinovy a belt.
5. Unscrew top (and) and bottom (in) bolts of fastening of the compressor of central air of air and, without disconnecting from it pipelines, move it aside and fix there.
Engines 1,6-/1,8-I
6. Unscrew bolts and remove the connecting union from the block of cylinders. Move the connecting union together with a hose aside.
Engine 1,4
7. Unscrew connecting unions, as well as in engines 1,6/1,8-I.
8. Take the thermostat with a sealing ring from the block of cylinders of the engine. At thermostat removal on the engine 1,8-I it is necessary to turn the thermostat counter-clockwise on 90 °.
Diesel engines
9. Unscrew the bolts, fixing the connecting union, and remove it from the water pump. Move the connecting union together with a hose aside. For removal of the thermostat turn it counter-clockwise on 90 °.