Guidelines For Clean Working Conditions

Even slight contamination can cause malfunctions for this reason when working on the A/C system pay attention to the following cleanliness regulations:

• Immediately seal off any open lines and connections with clean plugs taken from the Engine Bung Set:VAS6122  , for example.
• Place the removed parts on a clean surface and cover them. Use lint-free cloths.
• Carefully cover or seal opened components if repairs are not performed immediately.
• Only install clean parts: remove the replacement parts from their packaging just before installing them. Do not use parts that have been stored loose (for example, in tool boxes).
• Do not work with compressed air when the system is open.
• Protect any disconnected connectors from dirt and moisture, and only connect them when they are completely dry.