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.
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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:
Overview - Wheel, RAX
1 -
Wheel
Installing the wheel. Refer to
→ Chapter „Wheel, Mounting“.
2 -
Wheel Bolts
There are different versions. Refer to
→ Chapter „Wheel Bolts“.
3 -&nb ...
Radio reception and aerials
First read and observe the introductory information
and safety warningsFor factory-fitted radio or navigation systems, the aerial
for radio reception can be installed in various locations in the vehicle:
On the inside of the rear window, together with the rear window heating.
On the i ...
Refrigerant Circuit with Expansion Valve
A-Low pressure side of refrigerant circuit.
B-High pressure side of refrigerant circuit.
Component
Aggregate State of Refrigerant
Pressure bar (psi) Positive Pressure
Temperature
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