The Audi A4 is a compact executive car produced by the German automaker Audi since 1994. The first generation A4 succeeded the Audi 80. The first-generation Audi A4 had a wide range of engines were available to European customers, between 1.6 and 2.8 litres, and a 1.9 L Diesel available.
The following wiring diagram and connectors list apply for Audi A4 2000 model years. Here you will find detail pictures and illustration also description of the electrical system, components, connectors and wiring diagram of A4, e.g. Main Fuse Diagram, Connector Station E-box, 4-pin relay carrier, fuse holder, 9-pin relay carrier in the instrument panel, 4-pin connectors, 10-pin connectors, battery, starter, ignition and starter switch, fuse trip, ground connection, cruise control switch, Steering Column Electronic Systems Control Module, etc.
Find more information about Audi A4 Wiring Diagram, Connectors and Pinouts in the following article. (source: vaglinks.com)