Fuel Supply System

Clean Working Conditions

Even a little contamination can lead to faults. When working on the fuel supply and fuel injection system, observe the following guidelines for a clean working environment:

• Before loosening, connections and surrounding areas must be cleaned thoroughly with engine or brake cleaner, and then cleaned area must be dried completely.

• Seal the open lines and connections immediately with clean plugs, for example, from the Engine Bung Set (VAS 6122).

• Place parts that have been removed on a clean surface and cover them. Use lint-free 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 outside of their original packaging (e.g. in tool boxes etc.).

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

• Protect disconnected electrical connectors from dirt and moisture and only connect if dry.