Audi S4 (2018) - fuse box diagram - Auto Genius May 07, 2018Audi S4 (2018) – fuse box diagram Year of production: 2018 Fuse assignment – driver’s/front passenger’s footwell Front passenger ‘s footwell (right -hand drive vehicle) Fuse panel A (brown) Number Electric equipment 1 — 2 Mass airflow sensor, camshaft adjustment, charge air cooler pump 3 Exhaust doors, fuel injectors, radiator inlet 4 Vacuum pump, hot water pump, Audi A4/S4 (B9/8W; 2017-2019..) < Fuse Box diagram Fuse Box Diagram: Audi A4/S4 (B9/8W; 2017-2019) 2017 2018. Fuse Box Location. Driver’s/front passenger’s footwell. Left-hand drive vehicles: The fuse box is located under the footrest. Right-hand drive vehicles: Behind the cover under the glove box. Driver’s side cockpit.