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:

Test after driving for 10 minutes
First read and observe the introductory information and safety warnings Reconnect the tyre filler hose and check the tyre pressure on the tyre pressure display ⑥. 1.3 bar (19 psi / 130 kPA) and lower: Do not drive on! The tyre cannot be sealed adequately with the breakdown set. ...

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. ...

Special Connector Systems
  Note If necessary, housing securing mechanisms (secondary locks) must be released or removed using specified tool before releasing the contacts. Refer to → Chapter „Secondary Lock“.     ...

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