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Polo 3 (1995-2003) Polo 4 (2001-2009)

Cooling system (VW Polo 3)

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  • Polo
  • Polo 3
  • Power unit
  • Diesel engines 1.7 and 1.9
  • Cooling system
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The cooling system elements are shown in Fig. 6.40, 6.41. The cooling system pump is shown in Fig. 6.42.

Fig. 6.40. Elements of the cooling system:

Fig. 6.40. Elements of the cooling system:
1 - Clamp; 2 - Bolts with nuts; 3 - Radiator; 4 - Locking support; 5 - Poly V-belt (only on cars with additional options), 6 - Fan guide rings; 7 - Radiator fan; 8 - Upper branch pipe; 9 - Lower branch pipe; 10 - Additional fan; 11 - Fan casing; 12 - Fan wiring connector; 13 - Expansion tank cap; 14 - Expansion tank; 15 - To the cooling system pipe; 16 - To the upper branch pipe; 17 - Lid; 18 - Fan thermal switch; 19 - Rubber washer; 20 - Air duct.


Fig. 6.41. Elements of the cooling system:

Fig. 6.41. Elements of the cooling system:
1 - Sealing ring; 2, 14 - Bolts; 3 - From the expansion tank; 4 - Retainer; 5 - Air conditioning thermal switch and 3-speed radiator fan thermal switch (only on engine 1Y); 6 - Coolant temperature sensor; 7 - To the radiator; 8 - From the radiator; 9 - From the expansion tank; 10, 15 - Brackets; 11 - Branch pipe; 12 - Oil radiator; 13 - From the bottom of the radiator: 16 - Nuts; 17 - Poly V-belt/ribbed belt; 18 - Cooling system pump; 19 - To the top of the radiator.




Fig. 6.42. Cooling system pump:

Fig. 6.42. Cooling system pump:
1, 9 - Bolts; 2, 11 - Pulleys; 3 - Cooling system pump; 4 - Gasket; 5 - Thermostat; 6 - Adapter; 7 - Sealing ring; 8 - Retainer; 10 - Flange.

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The text has been checked: Kolesnikov Artem

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Previous articles
Checking oil pressure and pressure sensor
Lubrication system
Swirl chamber replacement (1Y engines only)
Checking hydraulic compensators
Checking the valve guide bushing
Valve seat machining
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Power supply system
Fuel filter
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Turbocharging a diesel engine


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Polo 4 
  • General information
  • User manual
  • Maintenance
  • Power unit
  • Engine repair
  • Cooling and lubrication system
  • Control system
  • Injection system (diesel)
  • Supply system
  • Exhaust system
  • Chassis
  • Front suspension
  • Rear suspension
  • Steering
  • Wheels and tires
  • Brake system
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  • Interior
  • Exterior
  • Electrical equipment
  • Equipment and devices
  • Wiper system
  • Lighting system
  • Electrical circuits
Polo 3 
  • General information
  • User manual
  • Maintenance
  • Power unit
  • Petrol engines 1.4 and 1.6
  • Petrol engines 1.4 (V16)
  • Petrol engines 1.6 and 1.8
  • Diesel engines 1.7 and 1.9
  • Diesel engines 1.9 D and TD
  • Transmission
  • Mechanical gearbox 085
  • Mechanical gearbox 020/02K
  • Chassis
  • Front suspension
  • Rear suspension
  • Steering
  • Brake system
  • Body
  • Exterior
  • Interior
  • Electrical equipment
  • Equipment and instruments (until 2000)
  • Equipment and instruments (after 2000)
  • Electrical circuits
  • Wiring diagrams (petrol)
  • Wiring diagrams (diesel)
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