Parking/Auxiliary Heater And Fuel System Clean Working Conditions

When working on the fuel supply/injection system, pay careful attention to the following for cleanliness:

• Always clean connecting points and surrounding areas before loosening.
• 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.
• Only install clean components: Remove the replacement parts from their packaging just prior to installing them. Do not use parts that have been stored loose (for example, 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 diesel fuel gets on the coolant hoses. If necessary, the hoses must be cleaned again immediately. Replace any worn hoses.
• Protect the disconnected connectors from dirt and moisture and only connect when they are dry.