Fuel Supply, Injection System And Charging System Clean Working Conditions

Even a little contamination can lead to faults. Observe the following guidelines for cleanliness when working on the fuel system, injection system and turbocharger:

• Before loosening, connections and surrounding areas must be cleaned thoroughly with engine or brake cleaner, and then cleaned area must be dried completely.
• Immediately seal off lines and connections with clean plugs or caps.
• Place removed parts on a clean surface and cover them. Use a lint-free cloth.
• Carefully cover or plug unpacked components if repairs cannot be performed immediately.
• Install only clean parts: remove the replacement parts from their packaging just before Installation them. Do not use parts that have been stored unpacked (e.g. in tool boxes etc.).
• When the system is open: do not work with compressed air. Do not move vehicle unless absolutely necessary.
• Make sure no fuel gets onto the fuel hoses. If necessary, wipe off the fuel hoses immediately. Replace any corroded fuel hoses.
• Protect the disconnected connectors from dirt and moisture and only connect when they are dry.