Climate control unit, replacing: Preparations
NOTE:
Read off data from the control module before replacing the control module. This is carried out via VIDA communication. After replacing the control module, the relevant parameters must be programmed into the new control module.
Read the safety precautions for handling refrigerant. See Refrigerant, safety regulations .
Read the instructions covering slow and fast leaks. See Oil air conditioning (A/C) system, filling .
NOTE:
Always plug pipes and connectors when working on the climate control system.
Drain the refrigerant from the air conditioning (A/C) system. See REFRIGERANT, DRAINING .
Remove the battery lead. See Battery, disconnecting .