VW Polo manuals

Volkswagen Polo Service & Repair Manual: Flat Spots

What is a Flat Spot From Standing?
Terms like flat portion, flattening, are also used as a term for flat spots from standing.
Flat spots from standing cause vibration, like an incorrectly balanced wheel. It is important to recognize a flat spot in the tread from standing as such!
Flat spots from standing cannot be corrected by balancing, and can occur again at any time under various circumstances. Flat spots from standing can be corrected without complicated special tools. Providing that the flat spot was not caused by wheel lock during hard braking. Refer to → Chapter „Wear Spots“.
  Note
Wear spots due to wheel lock are irreparable! Tires with such damage must be replaced.
Causes of Flat Spots from Standing:
The vehicle stands for several weeks in a location without being moved.
Tire pressure is too low.
The vehicle was placed in a paint system drying cabinet after painting.
The vehicle was parked with warm tires in a cold garage or similar for a long time. In this case, a flat spot can develop overnight.
–  Correct the flat spots. Refer to → Chapter „Flat Spots, Correcting“.
   
Tires, Evaluating
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Cracking
Cracking is the term for shallow cracks in the sidewall of the tire. They run starting from the bulge in the direction of the tire shoulder. Se ...

Other materials:

Evaporator
  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 ...

Refrigerant R134a Environmental Information
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 ...

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

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