The fourth-generation (Mk4) Audi A3 and S3 (chassis code 8Y), a luxury compact car and its high-performance counterpart, has been available from 2020 to the present. Renowned for its modern design, advanced technology, and dynamic performance, this generation sets a new standard in the premium compact segment.
In this article, you’ll find fuse box diagrams for Audi A3 and S3 models from 2020, 2021, 2022, 2023, 2024 and 2025. These diagrams provide crucial information about the fuse layout and relay assignments, empowering owners and technicians to effectively maintain and troubleshoot the vehicle’s electrical system.
What You’ll Learn:
Fuse Box Diagrams: Detailed visual layouts for accurate identification.
Fuse Panel Locations: Clear instructions on where to locate the fuse panels in the car.
Fuse Assignments: Comprehensive descriptions of each fuse and relay for targeted troubleshooting and maintenance.
This guide is an essential resource for Audi A3 and S3 (8Y) owners who want to keep their vehicles performing at their best. Whether you’re addressing an electrical issue, replacing a fuse, or performing routine maintenance, this information ensures a seamless and efficient process.
Maintain your Audi A3/S3 (8Y) with confidence using this in-depth fuse box guide!
LHD vehicles: Depending on the vehicle equipment, the fuses may be located behind a cover (1) or behind the storage compartment (2) in the area of the steering column.
RHD vehicles: The fuses are located behind a cover in the glove compartment.
Engine Compartment
Fuse Box Diagrams
Instrument Panel Fuse Box
Assignment of the fuses in the passenger compartment fuse box
Fuse Data
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