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Home >> BMW >> 2017 >> 440i 2D Convertible >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Heating And Air Conditioning - Repair (F32, F33 & F36) >> 64 50 Air Conditioning, Test >> Safety instructions for handling refrigerant R1234yf (4' Series Coupe/Convertible, 4' Series Gran Coupe Sedan)

Safety instructions for handling refrigerant R1234yf (4' Series Coupe/Convertible, 4' Series Gran Coupe Sedan)

WARNING: Injury hazard! 
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 suction.
  • 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!
At high temperatures, R1234yf is inflammable! 

Protective measures/rules of conduct: 

First aid measures: