Fuse box Audi A3 8L - fusesdiagram Locate fuse and relay. Fuse box diagram. Identifying and legend fuse box Audi A3 1996-2003. Audi A3 8L (1996 to 2003) – Fuse Box Location and Fuses List wwwhowto›Audi A3›Audi A3 8L (1996 to 2003)The Audi A3 8L (1996 – 2003) have 2 fuse boxes locations. One on the fuse box is located in the dashboard driver’s side and another one in engine compartment – battery. Fuse box location: Relay carrier (3-pin) / fuse carrier (1), Micro-central electrics and Relay carrier (13-pin) (2), Fuse holder (3) and Main fuse box / battery (4).