Draining Refrigerant Circuit

Draining Refrigerant Circuit

Refrigerant is never to be allowed to escape into the atmosphere, but rather it is to be extracted from the refrigerant circuit using an extractor or 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.

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.

• R134a does not effect the ozone layer in the earth's atmosphere ((R134a) is an H-FC with no chlorine atoms). 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.

After discharging the air conditioner, disconnect harness connector from A/C Compressor Regulator Valve (N280) or from High Pressure Sensor (G65).

Reason:

A/C Compressor Regulator Valve (N280) is then no longer activated and compressor runs at idle. Compressor is designed such that lubrication of compressor components is guaranteed by way of an internal oil circuit at idle provided there is sufficient refrigerant oil in the compressor.