Refrigerant Circuit, Discharging
Refrigerant is never to be allowed to escape into the atmosphere, but rather it must be extracted from the refrigerant circuit using an extractor or A/C service station. The drained refrigerant will be locally recycled or is send to an environment-recycling place to the manufacturer (different or additional laws may apply in individual companies). For this reason, bring the vehicle to a workshop that has the necessary tools and qualified personnel. Refer to Refrigerant R134a Servicing.
Reason:
If refrigerant R134a is released into the environment, it enhances the green house effect.
Refrigerant R134a has far less of a greenhouse effect than R12.
Because R-134a does not contain chlorine atoms, the major catalyst in ozone depletion, refrigerant R-134a has no ozone depletion potential. Depletion of the ozone layer in the upper atmosphere is however only brought about by the splitting of carbon-chlorine bonds (as is the case, for example, with refrigerant R12).
Disconnect the connector from the A/C Compressor Regulator Valve -N280- or from the High Pressure Sensor -G65- after draining the A/C system.