Guidelines For Clean Working Conditions

When working on the fuel supply/injection system, pay careful attention to the following "5 rules" of cleanliness: 

• Thoroughly clean the connection points and the surrounding area before loosening.
• Place the removed parts on a clean surface and cover them. Only use lint-free cloths.
• Carefully cover or seal opened components if the repair is not performed immediately.
• Install only clean parts: remove the replacement parts from their packaging just before installing them. Do not use parts that have been loosely stored or unpackaged (for example, in tool boxes etc.).
• If the system is open: do not work with compressed air. Do not move the vehicle.
• Make sure no fuel gets onto the fuel hoses. If necessary, wipe off the fuel hoses immediately.
• Protect any disconnected connectors from dirt and moisture and connect them only when they are completely dry.