Operation CHARM: Car repair manuals for everyone.

Refrigerant System

Caution:
Dirt and moisture must be kept away from the piping system of the air conditioning system. For this reason, extreme cleanliness must be ensured during all work. No parts of the system must be cleaned internally with hot steam under any circumstances. Only nitrogen must be used for cleaning.

When a component is replaced, all openings must be sealed with suitable stoppers.