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Home >> BMW >> 2017 >> 530i >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Heating And Air Conditioning - Repair (G30) (2 Of 3) >> 64 50 Air Conditioning, Test >> Safety informations for handling tetrafluorethane refrigerant R134a (530i 2017-2022, 530i xDrive 2017-2022, 530e PHEV 2018-2022, 530e xDrive PHEV 2018-2022, 540i 2017-2022, 540i xDrive 2017-2022, M550i xDrive 2018-2022)

Safety informations for handling tetrafluorethane refrigerant R134a (530i 2017-2022, 530i xDrive 2017-2022, 530e PHEV 2018-2022, 530e xDrive PHEV 2018-2022, 540i 2017-2022, 540i xDrive 2017-2022, M550i xDrive 2018-2022)

WARNING: Danger of injury! 
Refrigerant circuit is under high pressure! Work on the refrigerant circuit may only be carried out by experts!
Draw off refrigerant without fail BEFORE  all repair work on the refrigerant circuit.
The refrigerant circuit is depressurized AFTER drawing off.
  • The pressure gauge on the A/C service unit must be checked for the actual pressure drop prior to repair work.

It is absolutely essential to read and observe the relevant operating instructions for the A/C service unit used!

Protective measures/rules of conduct: 

First aid measures: