Rules for cleanliness

WARNING: This page is about a different car, the 1999 Volkswagen Jetta, 1998 Volkswagen Jetta, and 1997 Volkswagen Jetta. However, it is still accessible from the selected car via links, so may be relevant.

CAUTION: When working on the fuel supply or Diesel injection system, always observe the following rules of cleanliness.

Thoroughly clean fuel system line and hose connections and the surrounding area before disconnecting.
Place removed components on a clean surface and cover. Use plastic sheet or paper. Do not use fluffy rags that leave lint!
Carefully cover over or seal any components that have been opened if repairs are not carried out immediately.
Install only clean parts:
- Do not remove replacement parts from the packaging until immediately before they are to be installed.
- Do not use parts that have been stored without packaging (e.g. in toolboxes, etc.).
When the fuel system has been opened, avoid working with compressed air whenever possible, and also avoid moving the vehicle if possible.
Do not let Diesel fuel come in contact with engine coolant hoses and, if necessary, immediately clean any hose that has been contaminated by fuel. Replace hoses if Diesel fuel has had time to soak into the hose material.