Procedures

Rules for cleanliness

Fuel injection system/fuel system

Even minor contaminations can lead to malfunctions in the fuel injection system. When working on fuel supply/fuel injection system, observe the following rules of cleanliness:

^ Before loosening, connections and surrounding areas must be cleaned thoroughly with engine or brake cleaner, and then cleaned area must be dried completely.
^ Plug open lines and connections immediately with appropriate protective caps.
^ Place parts that have been removed on a clean surface and cover them. Do not use fluffy cloths!
^ Only install clean parts: Only unpack replacement parts immediately prior to installation. Do not use parts that have been stored unpackaged (e.g. in tool boxes etc.).
^ When the system is open: Do not work with compressed air. Do not move vehicle unless absolutely necessary.
^ Separated electrical connections: Protect from dirt and moisture. Connect only when dry.

Turbocharger

When working on turbocharger, carefully observe the following "5 rules" of cleanliness:

^ Thoroughly clean all connections and the surrounding area before disconnecting.
^ Place parts that have been removed on a clean surface and cover them. Do not use fluffy cloths!
^ Carefully cover over opened components or seal, if repairs are not performed immediately.
^ Only install clean components: Only unpack replacement parts immediately prior to installation. Do not use parts that have been stored loose (e.g. in tool boxes etc.).
^ When the system is open: Avoid working with compressed air if possible. Do not move vehicle unless absolutely necessary.