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

Cooling system (VW Polo 3)

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  • Polo
  • Polo 3
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  • Petrol engines 1.6 and 1.8
  • Cooling system
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The cooling system elements are shown in Fig. 5.34-5.36. The cooling system pump is shown in Fig. 5.37.

Fig. 5.34. Elements of the cooling system:

Fig. 5.34. Elements of the cooling system:
1 - Clamp; 2 - Bolts with nuts; - 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 - From the throttle control unit (only on AFT engine); 17 - To the adapter; 18 - Lid; 19 - Fan thermal switch; 20 - Rubber washer; 21 - Air duct.


Fig. 5.35. Elements of the cooling system (aFT engine):

Fig. 5.35. Elements of the cooling system (aFT engine):
1 - To the top of the radiator; 2, 13 - From the expansion tank; 3 - Coolant temperature sensor; 4 - Sealing ring; 5 - Adapter; 6 - Cork; 7 - Retainer; 8 - To the throttle body; 9 - To the radiator; 10, 16 - Bolts; 11 - Bracket; 12 - From the radiator; 14 - Branch pipe; 15 - From the bottom of the radiator; 17 - Generator bracket; 18 - Nut; 19 - Poly V-belt/ribbed belt; 20 - Cooling system pump.




Fig. 5.36. Elements of the cooling system (engines 1F, ADZ):

Fig. 5.36. Elements of the cooling system (engines 1F, ADZ):
1 - Sealing ring; 2, 13 - Bolts; 3 - Coolant temperature sensor; 4 - Retainer; 5 - Cylinder head; 6 - To the radiator; 7 - From the radiator; 8, 11 - From the expansion tank; 9 - Bracket; 10 - Branch pipe; 12 - From the bottom of the radiator; 14 - Nut; 15 - Generator bracket; 16 - Poly V-belt/ribbed belt; 17 - Cooling system pump; 18 - To the top of the radiator.


Fig. 5.37. Cooling system pump:

Fig. 5.37. 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.

This article is available at russian, bulgarian, belarusian, ukrainian, serbian, croatian, romanian, polish, slovak, hungarian
The text has been checked: Kolesnikov Artem

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Previous articles
Checking oil pressure and pressure sensor
Lubrication system
Checking the valve guide bushing
Checking hydraulic compensators
Valve seat machining
Gas distribution mechanism
Next articles
Adjusting the accelerator cable
Checking the fuel pump
Gasoline vapor recovery system with carbon filter
Exhaust gas system
Mono-Motronic fuel injection and ignition control system
Self-diagnosis of the injection system


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Removal and installation the cooling system pump Tiguan 1 (2007-2015)
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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
  • Body
  • 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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