Parking/Auxiliary Heater And Fuel System Clean Working Conditions

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

• Always clean the connection locations and the area around them 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.
• Install only clean parts: remove the replacement parts from their packaging just before 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. The vehicle should not be moved.
• In addition, do not let diesel fuel flow onto coolant hoses. If necessary, the hoses must be cleaned again immediately. Replace corroded hoses.