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

Vehicle power unit Volkswagen Polo 4

  • Main
  • Polo
  • Polo 4
  • Power unit
Engine repair
Petrol engine with a working volume of 1.2 liters
Engine timing mechanism
Cylinder head of the AZQ petrol engine with a displacement of 1.2 litres and a power of 47 kW (64 hp)
Cylinder head — AWY petrol engine with a displacement of 1.2 liters and a power of 40 kW (55 hp)
1.4 litre petrol engine with 55/74 kW (75/100 hp)
Toothed belt drive of the 1.4 l AUA/BBY/AUB/BBZ petrol engine with 55/74 kW (75/100 hp)
The entire list of articles in this section »
Cooling and lubrication system
Lubrication system
Checking oil pressure and oil pressure sensor
Oil pump/oil pan
Coolant circulation
Antifreeze
Replacing the coolant
The entire list of articles in this section »
Control system
Gasoline injection and ignition system
Safety precautions when working with the injection system of a gasoline engine
Operation of the gasoline engine management system
Sensors and actuators of injection systems
Checking/adjusting idle speed/ignition timing/CO content
General inspection of the injection system
The entire list of articles in this section »
Injection system (diesel)
Methods of mixture formation in diesel engines
Preheating system
Removal and installation glow plugs
High pressure fuel pump/nozzle/unit-nozzle
Checking the preheating system
Diagnostics of faults in diesel engine injection systems
The entire list of articles in this section »
Supply system
Power supply system. General information
Safety and cleanliness rules when working with the fuel supply system
Safety rules when working with the power supply system
Fuel tank/fuel pump/fuel filter
Removal and installation the fuel pump/fuel level sensor
Removal and installation the fuel level sensor
The entire list of articles in this section »
Exhaust system
Exhaust gas system
Preventing Damage to the Catalytic Converter
Operation of the catalytic converter
Turbocharger for PD-TDI engine with a displacement of 1.4/1.9 l
Exhaust system design (1.2L petrol engine)
Exhaust system design (1.4L petrol engine)
The entire list of articles in this section »
This section is available on russian, bulgarian, belarusian, ukrainian, serbian, croatian, romanian, polish, slovak, hungarian
Similar sections from other manuals for VW cars:
Power unit Volkswagen Passat B5 (1996-2005)
Diesel engine Volkswagen Golf 3 (1991-1997)
Power unit Volkswagen Touareg 1 (2002-2006)
Power unit Volkswagen Tiguan 1 (2007-2015)
Petrol engines Volkswagen Sharan 1 (1995-2000)
Power unit Volkswagen Transporter T4 (1990-2003)
Power unit Volkswagen LT 2D (1996-2003)


Share information:

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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