Audi 80, 90 (B3) (1986-1991) – Fuse and Relay Box Diagram
The Audi 80 and Audi 90 (B3 generation) are compact executive cars produced from 1986 to 1991. This guide provides detailed fuse and relay box diagrams, including the locations of all fuse panels inside the car and the assignment of each fuse and relay, making it easier to troubleshoot, replace, and maintain the electrical system.
Interesting Facts about the Audi 80 / 90 (B3):
The B3 generation introduced the “Aerodynamic” body design, which reduced drag and improved fuel efficiency.
Audi 90 models were the sportier, higher-spec versions of the 80, often equipped with more powerful engines and luxury options.
The B3 featured transverse-mounted engines for the first time in certain variants, improving interior space and handling.
It was available with front-wheel drive or quattro all-wheel drive, laying the groundwork for Audi’s AWD reputation.
Some B3 models included the innovative “digital climate control” and early onboard electronics, making them advanced for the late 1980s.