Protect air conditioning circuit and components from moisture when carrying out repair work - AH83.30-P-0005-01GW

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MODEL 461, 463 as of model year 2013

Do not carry out any repair operations on the refrigerant circuit in the A/C when outdoors in humid 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 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.
A completely drained or leaky refrigeration circuit caused by a leakage.
In the event of soiling (dark gray to black color) of refrigerant oil.
A/C compressor has locked up.
The refrigerant circuit is damaged 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 drier cartridge packaging for damage. Dispose of drier cartridges with damaged packaging.

Install the desiccant cartridge no later than 20 minutes after opening the packaging.

Further protection against moisture is provided by carefully evacuating the air conditioning system following repair operations. The evacuation process (the generation of vacuum in the system) removes any moisture that might have penetrated into the system.