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. |
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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
Flat spots caused by storage or handling cannot be
eliminated from the tyre using workshop ...
Other materials:
Comfort
A basic requirement for concentrated and safe driving is the
feeling of comfort in the passenger compartment. Especially when
it is hot and humid, comfort can be attained only through the
use of air conditioning. Of course, open windows, an open
sunroof ...
Removing and installing headlight range control unit -J431-/control unit for
cornering light and headlight range control -J745-, LHD vehicles
Note
When renewing the control unit, select
Renew function for the respective control unit in
Guided fault finding or
Guided functions mode
→ Vehicle
diagnostic tester.
Removing
...
Switching lights on and off
Fig. 82 Next to the steering wheel: examples
of the various light switches
First read and observe the introductory information
and safety warnings Observe any country-specific regulations when using vehicle
lighting.
In vehicles with a factory-fitted towing bracket, the vehicle's
re ...
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Vibration, conducting a road test before balancing wheels
Eliminating flat spots caused by storage or handling