BMW X3 Service & Repair Manual > Air conditioning, leak detection: Safety informations for handling tetrafluorethane refrigerant r134a
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 p ...