VW Polo manuals

Volkswagen Polo Service & Repair Manual: Disintegrated Tread

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 centrifugal force at higher speeds can tear components off the tire.
Illustration shows a tire with torn-out tread due to driving with insufficient tire pressure.
 

Disintegrated Tread

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

Tires, Damage from Low Tire Pressure
The most common causes of failure are small external damage, a defective valve or a leaky rim due to corrosion or damage.     ...

Other materials:

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. ...

Refrigerant Circuit with A/C Service Station, 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. ...

Service Test, Performing
  Note The printed test results can differ depending on the software version. Read the Battery Tester -VAS6161- Operating Instructions.   WARNING Do not ch ...

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