Volkswagen Polo Service & Repair Manual: Cracking
| 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. See Illustration for the mentioned components.
Refer to
→ Fig. „“Components of a Tire”“. |
| The cause is the increase in material at the joints of the
tire components. |
| Cracking has no effect on |
| Other characteristics of the tire. |
| Cracks can be of varying visibility. Removing the tire from
the rim or an examination is not necessary. |
| Modern steel belted tires are constructed with single-ply
sidewalls to save weight. |
| The sidewall components consist of long strips before they
are joined together to form a tire. They must overlap at the
joints. Small irregularities/ripples form in the area of the
overlapping components. The overlaps are easier to see from the
outside due to the single-ply construction. |
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What is a Flat Spot From Standing?
Terms like flat portion, flattening, are also used as a term
for flat spots from standing.
...
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.
...
Other materials:
Single Wire Seals, Installing
Note
Single wire seals prevent the penetration of water and dirt
into the contact housing. They are installed, for example, in
the engine compartment and must be reinstalled after a repair.
Single wire seal is crimpe ...
Tires, Aging
Even tires that look in good shape, new or hardly use and
have sufficient tread depth and that are older than 6 years, can
age caused by moisture and winter conditions.
Tire test show that through continual development, new
rubber ...
Opening and closing the bonnet
Fig. 134 A: release lever in the footwell
on the driver side. B: release lever on the bonnet
Fig. 135 C: holder for the bonnet stay
in the lock carrier. D: bonnet secured with the bonnet stay
First read and observe the introductory information
and safety warningsOpening the bonnet
Ensu ...
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Flat Spots
Wear Spots