Guidelines For Clean Working Conditions On Parking/Auxiliary Heater And Fuel System

When working on the fuel supply/injection system, pay careful attention to the following for 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.
• Only install clean parts: remove the replacement parts from their packaging just before installing them. Do not use parts that have been loosely stored or unpacked (for example, in tool boxes etc.).
• Do not work with compressed air when the system is open. Do not move the vehicle if possible.
• Make sure no diesel fuel gets on the coolant hoses. If necessary, the hoses must be cleaned again immediately. Replace any worn hoses.
• Protect any disconnected connectors from dirt and moisture, and only connect them when they are completely dry.