Volkswagen Polo Service & Repair Manual: Wear Spots
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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. |
| At the same time a tire during the braking maneuver is
rubbed at selective points which causes a tire imbalance. |
| The consequences of a wear spot is strong vibrations in the
vehicle, which can lead to a worsening of the driving behavior
and a higher noise generation. |
| In most cases the tire tends to lock up due to the larger
running surface at this location even with a slightly reduced
braking effect leading to an increase in the vibrations. |
| Only for low intensity wear spots can the vibrations
disappear after a short time through further wear on the tire. |
Caution
| “Large” wear spots due to wheel lock are
irreparable! Tires with such damage must be replaced. |
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Cracking is the term for shallow cracks in the sidewall of
the tire.
They run starting from the bulge in the direction of the
tire shoulder. Se ...
A swelling in the flank of the tire indicates that the
substructure of the carcass has been damaged.
Typical ...
Other materials:
Refrigerant in A/C Service station Container, Filling
Caution
If it is suspected that chemicals were added to the
refrigerant circuit to seal leaks, do not connect the
A/C service station and do not extract the refrigerant.
...
Rolling Resistance Tires
Tire deformation when rolling causes the vehicle to loose
energy that makes the rolling resistance noticeable.
Deformation is significantly lowered on rolling resistance
tires due to new construction and low-wear surface mixtures.
...
Tyre damage
First read and observe the introductory information
and safety warningsDamage to tyres and rims is often not readily visible.
Any unusual vibrations or signs that the car is pulling
to one side may indicate that one of the tyres is damaged .
Reduce your speed immediately if you suspect th ...
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Cracking
Tire Sidewall Swelling