VW Polo manuals

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.
   
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.
 

Tire Sidewall Swelling

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.
 

Tire Sidewall Swelling

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.
 

Tire Sidewall Swelling

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.
 

Tire Sidewall Swelling

Cuts

Cut Caused by a Sharp-Edged Obstacle -arrow-.
 

Cuts

Wear Spots
  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. ...

Foreign Object Damage
Driving over hard, pointed objects like nails, screws and the like can pierce the tire. This always leads to tire damage.   ...

Other materials:

Bag hook
Fig. 89 In the luggage compartment: bag hook First read and observe the introductory information and safety warnings Bag hooks can be found to the left and right in the luggage compartment. Light shopping bags can be secured here . WARNING Never use the bag hooks as fastening rings for s ...

Tire Pressure Sensor and Metal Valve, Removing and Installing
Special tools and workshop equipment required Torque Wrench 1410 -VAG1410- and Torque Wrench 1331 5-50Nm -VAG1331- –  Place metal valve with rubber seal through rim from inside. ...

Refrigerant R134a Physical Data
Vehicle air conditioning systems make use of the vaporization and condensation process. In this case, one works with a substance which boils easily, designated as refrigerant. The refrigerant employed is tetrafluoroethane R134a, which bo ...

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