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Audi A501 · Running gear
01 · Steering & suspension

Wheel balancing

Make
Audi
Model
A5
Section
Wheels and tyres › Wheels, tyres. axle align › Wheel balancing
Running gearWheel balancing
Vibration control system -VAS 6230 A-
Wheels with sensitive surfaces and bonded wheel trims → Chapter
   
The vibration control system -VAS 6230 A- has a range of additional features over and above regular static wheel balancing.
One of the system's special features is the ability to test the radial force of wheels/tyres while they are rotating.
To do this, a roller is pressed against the wheel with a force of approx. 635 kg. This simulates the force exerted by the tyre's contact patch on the road surface while the vehicle is in motion.
The contact forces on the tyre vary due to variations in the stiffness of the tyre and the degree of radial and lateral run-out on the wheel/tyre.
The -VAS 6230 A- detects and memorises the position of maximum measured radial force in the tyre. It then locates the smallest measurement between the wheel flange and the centre of the rim.
  N44-10209

Parts & tools for this job For Audi A5

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