VW Polo manuals

Volkswagen Polo Service & Repair Manual: Vibration, Vibration Control System

Expanded functions can be performed using Hunter RFT33VAG Road Force Touch™ Wheel Balancer -VAS6230B4- in addition to the previously known balancers.
A special characteristic of this system is testing the radial force of wheel/tire during rolling.
For this purpose, a roller presses a force of approximately 635 kg (0.7 ton) against the wheel. This simulates the tire contact force against the street surface while driving.
Tire contact forces fluctuate due to radial- and lateral run-out and differing rigidity in the tires.
The Hunter RFT33VAG Road Force Touch™ Wheel Balancer -VAS6230B4- detects and stores the position of the maximum measured radial force in the tires. After that, the position of smallest dimension between rim flange and disc wheel center is measured.
 

Vibration, Vibration Control System

Vibration, Road Test, Performing Before Balancing
If a vehicle comes to the workshop with the complaint “vibration”, a road test must be performed before balancing the wheels. That wa ...

Flat Spots, Correcting
Flat spots cannot be removed from tires with workshop equipment. Such flat spots can be "driven out" only by driving the car un ...

Other materials:

Evaporator Vent Temperature Sensor -G263- or Evaporator Temperature Sensor -G308
Function: The Evaporator Vent Temperature Sensor -G263- or Evaporator Temperature Sensor -G308- determines the temperature behind the evaporator. This value goes to the air conditioning control module and serves as a reference signal for ...

Replacing Reservoir, No Contaminants, No Loss of Refrigerant
  Discharge the refrigerant circuit. –  Replace the restrictor depending on the vehicle. –  Remove receiver or accumulator. –  Remove dirt from receiver or res ...

Refrigerant Circuit, Flushing
  Note For vehicles in which no adapters fit on to the refrigerant pipes, for example, a blower pistol with rubber mouthpiece is to be used to blow through individual components. Special care must be taken not to damage the connections (crus ...

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