Volkswagen Polo 3 with 1994 for 2001 of release.
1. The general data
2. The engine
3. Greasing system
4. Cooling system
4.1. A cooling liquid
4.2. A radiator and вентилято
4.3. The water pump
4.4. The thermostat
5. Systems of injection of fuel
6. Ignition system
7. Coupling
8. A mechanical transmission
9. A drive of wheels
10. A steering without the amplifier
11. A steering with the hydraulic amplifier
12. A forward suspension bracket
13. A back suspension bracket
14. Brake system
15. An electric equipment
16. Heating and ventilation system
17. An automatic transmission
18. Appendices


4. Cooling system

In system of cooling for maintenance of circulation of a cooling liquid it is used лопастной the water pump. The fan with an electromagnetic drive joins a thermoswitch located in sideways radiator (between both unions of fastening of hoses), at too considerable heating of the engine and is again disconnected, when the engine temperature goes down. The switch two-level. Inclusion of the first step occurs at 92–97 With, and switching-off at 84 91 S.Vtoraja a step joins at 99–105 With, and is switched off at 91–98 With.
Established independently in cooling system the broad tank provides expansion of a cooling liquid in system: at superfluous pressure the superfluous cooling liquid arrives in a broad tank. After the next fall of temperature in cooling system the cooling liquid again comes back in a radiator, and consequently, and in system.

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3.5. Replacement of engine oil and the oil filter
On the following page
4.1. A cooling liquid