Volkswagen Polo Service & Repair Manual: Foreign Object Damage
| 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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| Damage from Imbedded Foreign Bodies |
| Frequently, the foreign object
-marking- is so securely embedded in the tire that it
will not free itself even at higher speeds. Due to this, it can
act as a plug and seal the tire relatively well. The result is
gradual loss of pressure which the driver does not notice
immediately but which can lead to sudden and complete tire
failure. |
 Note
| No repair should be attempted on steel belted tires of which
the structure has been punctured by a foreign body. |
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A swelling in the flank of the tire indicates that the
substructure of the carcass has been damaged.
Typical ...
Tires with Torn-Out Tread
Such damage usually develops over a longer period of time.
If an already damaged tire is exposed to high stress, the
...
Other materials:
Test Requirements
Note
The A/C system is functioning correctly when the air flowing
from the instrument panel vents has a temperature of 70C
or lower.
Setting on Climatronic “LO”.
Setting on A/C system ...
Windshield and Rear Window Washer System
The following hose connection types are used for connecting
hoses to pumps and spray nozzles or as separating points
–
To loosen the connection, pulling both halves of the
coupling apart.
...
Refrigerant Oil
Refrigerant oil mixes with the refrigerant (about 20 - 40%,
depending on compressor type and amount of refrigerant) and
circulates constantly in the system, lubricating the moving
parts.
Special synthetic refrigerant oils, for example,
...
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Tire Sidewall Swelling
Disintegrated Tread