Volkswagen Polo Service & Repair Manual: Tire Service Life, Influences
| The following factors influence the service life of a tire
in varying degrees. |
| Exterior temperature/climate |
| Dynamic toe and camber values |
| Tire Operating Conditions |
| Changes to the Suspension: |
| If a “lowering-kit” and /or light alloy wheels from
accessories which have not been approved by the vehicle
manufacturer are used, wheel alignments which deviate from the
alignment specified in design may occur during travel. |
| Even if the adjustment of the axle geometry measured on a
standing vehicle is correct, changes in the body height and
positions of the wheels during travel can lead to changes to the
paths of travel of the wheel suspension. |
| For this reason, uneven wear is pre-programmed. |
|
|
|
Heel-and-toe wear is step-like wear of individual tread
blocks, due to which an increased rolling noise can develop. The
heel-and-toe wear is caused by the uneven dis ...
Other materials:
Valve, Removing and Installing, Valve Explanations
1. Valve Body
1 -
Valve body
2 -
Valve Insert
3 -
Valve cap
The rubber valve for tubeless tires is designed to seal
air-tight in the ...
Taper
Taper is caused by slightly offsetting the tread and/or the
belt by a few tenths of a millimeter from the geometric center
of the tire. Taper cannot be recognized visually nor can it be
measured with workshop equipment.
...
Wheel Balancing, Rim Radial and Lateral Run-Out, Checking
Mount the rim on the Balancing Machine.
–
Use the Wheel Centering System Adapter -VAS5271-.
–
Preload the Tire Dial Gauge approximately 2 mm.
–
Turn the rim slowly.
...
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Tire Wear
Heel and Toe Wear