Volkswagen Polo Service & Repair Manual: Tire Sealant

Siemens Wheel Electronics Tire Pressure Monitoring Sensor, Removing and Installing

  WARNING If tire sealant was used, then the wheel electronics on that particular wheel must be replaced. ...

Tire Sealant, Expiration Date

Tire sealant in the bottle has a limited storage life.     Therefore, the expiration date is indicated on the bottle ...

Other materials:

Test Requirements
Radiator and condenser are clean (clean if necessary). The ribbed belt for the A/C compressor and alternator tensioned correctly. All air ducts, covers and seals are OK and installed correctly. ...

Flushing Not Necessary
  Note For vehicles with an electrically-driven A/C compressor, de-energize the high voltage system before removing the A/C compressor. Refer to → Electrical System Hybrid; Rep. Gr.93. –  Dischar ...

A/C Service Station, Connecting for Measuring and Testing
  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. ...