Protect Air Conditioning Circuit And Components From Moisture When Carrying Out Repair Work - AH83.30-P-0005-01A

MODEL 117, 156, 166, 172, 176, 190, 197, 204, 205, 207, 212, 213, 217, 218, 221, 222, 231, 238, 242, 246, 253, 257, 292 

Do not carry out repair operations on the air conditioning circuit in the open air during damp weather.

Moisture in the refrigerant circuit reduces the system's refrigeration output and leads to damage to the components.

After disconnecting or unscrewing refrigerant lines, immediately seal all connection apertures air tight with suitable stop plugs.

The fluid reservoir or the desiccant cartridge are to be replaced when:

• The refrigerant circuit was opened and the vehicle is older than 5 years.
• If discoloration of refrigerant is dark gray to black.
• A/C compressor has locked up.
• In the event of a damaged refrigerant circuit following an accident.

Always store all spare components in a dry, sealed-off area. Do not remove stop plugs in new components until just before they are installed.

Check desiccant cartridge packaging for damage. Dispose of desiccant cartridges with damaged packaging.

The receiver drier must be installed no more than 20 min after the packaging is opened.

Further protection against moisture is provided by carefully evacuating the air conditioning system following repair operations. Evacuation draws off any moisture that has penetrated.