Guidelines For Clean Working Conditions

Even very small particles of dirt can cause a fault. Observe the following guidelines for cleanliness when working on the fuel system, injection system and turbocharger:

• Before loosening, the connection points and surrounding areas must be cleaned thoroughly with engine or brake cleaner, and then the cleaned area must be thoroughly dried.
• Immediately seal off any open lines and connections with clean plugs, for example taken from the Engine Bung Set: VAS 6122  .
• 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).
• If the system is open, do not work with compressed air and do not move the vehicle.
• Make sure no fuel gets onto the fuel hoses. If necessary, the fuel hoses must be cleaned again immediately.
• Protect the disconnected connectors from dirt and moisture and only connect when they are dry.