VW Golf manuals

Volkswagen Golf Service & Repair Manual: Vibration, vibration control system

Using the vibration control system -VAS 6230 A- you can perform more functions than just stationary balancing.
A special feature of this system is the testing of the radial force of the wheel and tyre while rolling.
A roller presses against the wheel with a force of about 635 kg. This simulates the vertical tyre force against the road surface during travel.
Radial and lateral run-out in the wheel and tyre and differences in the stiffness of the tyre cause the vertical force of the wheel to vary.
The -VAS 6230 A- detects and stores the position of the maximum measured radial force in the tyre. Then the position of the smallest distance between the wheel rim flange and the centre of the rim is measured.
 

Vibration, vibration control system

Vibration, conducting a road test before balancing wheels
If a customer brings a vehicle to the workshop complaining about “vibration”, a road test is essential prior to balancing the wheels. ...

Eliminating flat spots caused by storage or handling
Eliminating flat spots caused by storage or handling Flat spots caused by storage or handling cannot be eliminated from the tyre using workshop ...

Other materials:

Removing and installing front door window
  Special tools and workshop equipment required           Note Removal and installation are described only for the right door wi ...

Notes on safety
Safety precautions during a road test using test and measuring equipment Observe the following if test and measuring equipment is required during a road test: Risk of accidents due to distraction and inadequate securing ...

Safety precautions when handling refrigerants
Risk of freezing injury caused by refrigerant When working on the air conditioning system, there is a risk of highly pressurised refrigerant escaping from the system. There is a risk of injury to the skin and parts of the body due to freezing. –  A ...

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