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, for example taken from the Engine Bung Set: VAS6122  .
• Place removed parts on a clean surface and cover them with 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 any parts that have been kept out of packaging (for example, in a toolbox).
• Do not work with compressed air when the system is open.
• Protect the disconnected connectors from dirt and moisture and only connect when they are dry.