Accuracy when working with fuel supply systems

When working on fuel supply systems, the following rules of cleanliness must be carefully observed:

• Thoroughly clean the joints and places next to these joints before separating the parts.
• Lay the removed parts on a clean base and cover with foil or paper. Do not use fluffy cloths for this!
• Exposed parts should be carefully covered or covered unless urgent repairs are being carried out.
• Install only clean parts.
• Remove spare parts from the packaging only immediately before installation.
• Do not use parts that have been stored unpacked (for example, in a tool box, etc.)
• With an open supply system, if possible, do not work with compressed air. If possible, do not move the car.
• Do not allow diesel fuel to enter the hoses of the engine cooling system, because. this leads to rapid aging. Wipe up spilled diesel fuel immediately with a damp cloth.