The most common reasons for the cigarette lighter (or power socket) fuse blowing are: Current overload: connecting devices that draw more current than the fuse is designed to handle (such as high-power chargers, air compressors, power inverters, etc.) can cause the fuse to blow
This X1 has 2 different fuse boxes where the cigarette lighter fuse is located: Front right fuse box Fuses and relays related to the cigarette lighter: Body Domain Controller fuse box (BCP) Fuses and relays related to the cigarette lighter: Why does the cigarette lighter (power socket) fuse blow in the X1
This 1 Series has 2 different fuse boxes where the cigarette lighter fuse is located: Engine compartment fuse box Fuses and relays related to the cigarette lighter: Fuse box in the luggage compartment (B) Fuses and relays related to the cigarette lighter: Why does the cigarette lighter (power socket) fuse blow in the 1 Series
For example, in the attached, it shows what I think is the car horn and two numbers next to it
Does the horn not work, and this is the reason for your query