Volkswagen Polo Service & Repair Manual: Tire Sidewall Swelling
| A swelling in the flank of the tire indicates that the
substructure of the carcass has been damaged. |
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| Typical causes for such damage include, for example, driving
over curbs at a sharp angle. |
| Pinching the carcass of a tire this way can damage the
carcass. |
| The substructure of the tire is stretched so far that
individual fibers in the carcass may break. |
| The extent of the damage depends on the speed of impact, the
angle of impact, the air pressure, the axle load and the type of
obstacle. |
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| Evidence of Pinching on the Sidewall of a Tire
-arrows- |
 Note
| Driving over curbs must be avoided! |
| When it cannot be avoided, curbs should be driven over very
slowly at the bluntest possible angle. |
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| Interior View of a Tire with a Punctured Carcass. |
| Due to a severe impact, the carcass was pinched on the rim
flange and is ruptured in the contact patch. |
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| Inside Tire Damage Due to Impact Damage (Double Rupture) |
| Double rupture -arrows- caused
by pinching when driving over a curb. Often not detectable from
outside. |
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Cuts
| Cut Caused by a Sharp-Edged Obstacle
-arrow-. |
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A wear spot is a flat spot on the tread of the tires that
can be caused by extreme braking maneuvers on subsurface such as
asphalt.
...
Driving over hard, pointed objects like nails, screws and
the like can pierce the tire.
This always leads to tire damage.
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Other materials:
Refrigerant Circuit Connections with Valve for Switches
Note
For switching pressures, removing and installing switches
and switch arrangement and version, see vehicle-specific
refrigerant circuit.
Refer to
→ Rep. Gr.87.
...
Checklist
Transporting children in the vehicle :
Comply with any country-specific legal regulations.
Volkswagen recommends that children under
12 years of age are always transported on the rear seats.
A child should only be transported on the
front passenger seat in exceptional circumsta ...
Refrigerant Circuit Repair Information
WARNING
When performing work on refrigerant circuit, observe
all generally applicable safety precautions and pressure
vessel regulations.
Cautio ...
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Wear Spots
Foreign Object Damage