Rules for cleanliness

When working on the fuel supply/injection system, carefully follow the “5 rules” below:

• Thoroughly clean all joints and surrounding areas before dismantling.
• Place removed parts on a clean surface and cover them over. Use lint-free cloths only!
• If repair work cannot be performed immediately, cover new parts which have been removed from their packing.
• Install only clean parts; do not remove new parts from packaging until immediately before installing. Do not use parts that have been kept unpackaged (for example in toolboxes).
• If system is open: do not use compressed air if possible. Try not to move the vehicle.