General Information

Clean Working Conditions

When working on the fuel supply/injection system, pay careful attention to the following "6 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 using lint free cloths.

• Carefully cover or seal 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 a tool box, etc.).

• When the system is open: Do not work with compressed air. Do not move the vehicle unless absolutely necessary.

• In addition, do not allow diesel fuel to leak onto coolant hoses. If necessary, the hoses must be cleaned immediately. Replace any corroded hoses.