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

Cooling system (VW Polo 3)

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The elements of the cooling system are shown in Fig. 7.32 a, b.

Fig. 7.32 a. Elements of the cooling system:

Fig. 7.32 a. Elements of the cooling system:
1 - Clamp; 2 - Bolts with nuts; 3 - Radiator; 4 - Locking support; 5 - Air ducts; 6 - Rubber washer; 7 - Upper branch pipe; 8 - To the expansion tank; 9 - To the cylinder head; 10 - Radiator fan; 11 - Wiring connectors; 12 - Additional fan; 13 - Fan casing; 14 - Fan wiring connector; 15 - Bracket; 16 - Lid; 17 - Expansion tank; 18 - To the cooling system pipe; 19 - From the upper branch pipe; 20 - Expansion tank cap; 21 - Thermoswitch wiring connector; 22 - Radiator fan thermal switch; 23 - Lower branch pipe.


Fig. 7.32 b. Elements of the cooling system:

Fig. 7.32 b. Elements of the cooling system:
1, 12, 17 - Bolts; 2 - Cooling system pump; 3, 7 - Sealing rings; 4, 14 - Branch pipes; 5 - From the top of the radiator; 6 - To the top of the expansion tank; 8 - Coolant temperature sensor; 9 - Retainer; 10 - To the radiator; 11 - From the radiator; 13, 19 - Connectors; 15 - From the bottom of the expansion tank; 16 - To the top of the radiator; 18 - To the bottom of the radiator; 20 - Thermostat; 21 - Oil radiator.

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The text has been checked: Kolesnikov Artem

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Checking oil pressure and pressure sensor
Lubrication system
Checking hydraulic compensators
Checking the valve guide bushing
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Gas distribution mechanism
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Fuel filter
Accelerator pedal
Checking the accelerator pedal position sensor
Adjusting the accelerator pedal position sensor
Turbocharging a diesel engine
Intercooler (intermediate cooling of the supercharged air)


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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)
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  • Wiring diagrams (petrol)
  • Wiring diagrams (diesel)
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