Guidelines For Clean Working Conditions

Danger of Malfunction Caused by Debris

When working on the A/C system, the following "7 rules" of cleanliness must be carefully followed:

• Thoroughly clean the connection points and the surrounding area before loosening.
• Immediately seal off any open lines and connections with clean plugs taken from the : VAS6122  , for example.
• Place 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 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. Do not move the vehicle.
• Protect any disconnected connectors from dirt and moisture, and only connect them when they are completely dry.