General, Technical Data

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 or caps, 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.

• Install only clean parts: remove the replacement parts from their packaging just before installing them. Do not use parts that have been stored unpacked (for example 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.