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. |
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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 cannot be removed from tires with workshop
equipment.
Such flat spots can be "driven out" only by driving the car
un ...
Other materials:
Running-in
First read and observe the introductory information
and safety warningsPlease follow the regulations concerning running-in new
parts.
Running in a new engine
Any new engine has to be run in during the first 1,500 kilometres. During its
first few hours of running, the internal friction in the ...
Warning and indicator lamps
First read and observe the introductory information
and safety warnings Depending ont eh vehicle equipment scope,
an electrohydraulic or an electromechanic steering system may be fitted.
Lit up
Possible cause
Solution
Electrohy ...
Vehicle key
Fig. 18 Vehicle key
Fig. 19 Vehicle key with alarm button
First read and observe the introductory information
and safety warnings
Vehicle key
The key can be used to lock and unlock the car from a distance .
The remote control transmitter and the battery are integrated in the key. The
re ...
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Vibration, Road Test, Performing Before Balancing
Flat Spots, Correcting