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– Balance the wheels until the imbalance is below 5 grams.
– Tighten the wheel bolts to the specified tightening specification
if you have not already done so.
WARNING
Always tighten the wheel bolt to the tightening specification and
using the torque wrench.
4.4
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
(1400 lbs) 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 small‐
est dimension between rim flange and disc wheel center is meas‐
ured.
4.5
Tire and Wheel Radial and Lateral Run-
Out, Checking
⇒ “4.5.1 Tire and Wheel Radial and Lateral Run-Out, Checking,
Tolerances”, page 316
⇒ “4.5.2 Wheels and Tires, Radial and Lateral Run Out, Checking
with Tire Dial Gauge”, page 317
4.5.1
Tire and Wheel Radial and Lateral Run-
Out, Checking, Tolerances
Radial and lateral run-out occur when the wheel and tire are not
running precisely true.
For technical reasons, 100% true running is not possible.
Therefore the manufacturers of these components allow a pre‐
cisely specified tolerance.
Mounting the tire in a unfavorable position on the wheel can be
the cause for exceeding the maximum allowed tolerance for
wheel with tire.
The table shows the maximum permissible tolerance values for
the wheel with mounted tire.
Tolerances for Radial and Lateral Run-Out of Rim with Tire
Rim with Tire
Radial Run-Out (mm)
Lateral Run-Out (mm)
Passenger vehicle
0.9
1.1
(1.3 near the lettering)
Golf 2015 ➤ , Golf Variant 2015 ➤
Suspension, Wheels, Steering - Edition 03.2016
316
Rep. Gr.44 - Wheels, Tires and Vehicle Alignment