2001 Audi A4 Wiring Diagram Audi a4 q&a: wiring diagrams, fuel pump relay locations, and more Diagram audi a4 wiring fuel pump 1998 quattro just system answers hello welcome Audi A4 Q&A: Wiring Diagrams, Fuel Pump Relay Locations, and More Audi A4 Q&A: Wiring Diagrams, Fuel Pump Relay Locations, and More Check Details ← 2001 Audi A4 Quattro Wiring Diagram 2001 Audi A4 Wiring Harness → Share with friends Link copied