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.
...
Other materials:
Paint Thickness Tester -VAS6197
Definition:
Paint Thickness Tester -VAS6197-
Product Description
Fully-electronic layer thickness measuring instrument with 2
independently operating sensors and LCD screens. Measurements on
...
Seat belt routing
Fig. 52 Correct seat belt routing and
head restraint adjustment
Fig. 53 Correct seat belt routing during
pregnancy
First read and observe the introductory information
and safety warnings
Seat belts only provide an optimum level of protection during an accident when
they are routed corre ...
Roll-back function of the electric panorama sliding/tilting glass roof
First read and observe the introductory information
and safety warnings
The roll-back function can reduce the risk of injury when the electric panorama
sliding/tilting glass roof is being closed . If the electric panorama sliding/tilting
glass roof is not able to close because it is stiff or ...
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Wear Spots
Foreign Object Damage