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Home >> BMW >> 2013 >> 740Lxi >> Repair and Diagnosis >> External Pages >> Different car >> Section 465 (Heating And Air Conditioning - Repair) >> Air Conditioning System >> 64 50... Safety informations for handling tetrafluorethane refrigerant R134a >> Notes

64 50... Safety informations for handling tetrafluorethane refrigerant R134a: Notes

WARNING: This page is about a different car, the 2011 BMW 750xi, 2011 BMW 750Lxi, 2010 BMW 750xi, and 2010 BMW 750Lxi. However, it is still accessible from the selected car via links, so may be relevant.
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!