Cooling system (VW Polo 3)

Fig. 4.15 a. Elements of the cooling system:
1 - Clamp; 2 - Radiator; 3 - Bolts; 4 - Mounting crossbar; 5 - Radiator fan; 6 - Additional fan; 7 - Series resistor; 8 - Dual fan shroud; 9 - Fan wiring connector; 10 - Lid; 11 - Expansion tank; 12, 14 - To the thermostat housing; 13 - Expansion tank cap; 15 - Fan thermal switch wiring connector; 16 - Fan thermal switch; 17 - Lower branch pipe; 18 - Rubber washer; 19 - Upper branch pipe; 20 - Front air ducts.

Fig. 4.15 b. Elements of the cooling system (thermostat side):
1, 10 - Fixators; 2, 16 - Bolts; 3 - From the bottom of the radiator; 4 - Adapter; 5 - Sealing ring; 6 - Thermostat; 7 - To the expansion tank; 8 - To the radiator; 9 - From the expansion tank to the automatic transmission radiator; 11 - From the radiator; 12 - Cooling system pump housing; 13 - Seal; 14 - Branch pipe; 15 - Thermostat housing; 17 - Sealing plug/adapter for automatic transmission radiator; 18 - Coolant temperature sensor; 19 - To the top of the radiator.

Fig. 4.15 c. Elements of the cooling system (coolant pump side):

1 - Main timing belt; 2 - Cooling system pump; 3, 8, 9, 10 - Bolts; 4 - Rear timing belt cover; 5 - Upper part of the timing belt cover; 6 - Lower part of the timing belt cover; 7 - Crankshaft pulley; 11 - Timing belt.