bmw x1 cigarette lighter fuse location E84 Fuse box location and diagrams:

For example, in the attached, it shows what I think is the car horn and two numbers next to it

Image (Click to enlarge) Dec 27, 2022 at 1:16 AM Yes, this means there is more than one fuse running the system for the horn

I have checked the fuse diagram in my car, and it shows 9, 13, 38 and 42 as the fuses for the horn

There's been no recent work done on my car nor any collision of any sort

Thanks again Jan 4, 2023 at 3:51 AM Yep, one has probably gone out, I would put your hand on both to see which one is not working, here is the location so you can change the horn out

Incorrect fuse: if a fuse with a lower amperage than recommended by BMW has been installed, it may blow quickly when the lighter or connected accessories are used