Volkswagen Polo Service & Repair Manual: Tire Sidewall Swelling

Volkswagen Polo Service & Repair Manual / Whels, Tires, Whel Alignment / Tires, Evaluating / 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:

Cigarette lighter
Fig. 105 In the front centre console: cigarette lighter First read and observe the introductory information and safety warnings With the ignition switched on, press in the knob on the cigarette lighter . Wait for the lighter to pop out. Pull out the cigarette lighter and li ...

A/C without Magnetic Clutch with Torsion-Elastic Clutch
Caution Non-approved tools or materials such as leak sealing additives can cause damage or malfunctions in the system. Only use tools and materials approved by the manufactu ...

Warning lamp
Fig. 44 Warning lamp in the instrument cluster First read and observe the introductory information and safety warnings Lights up or flashes Possible cause Solution The driver seat belt and, if the front passenger seat is occupied, the fr ...