The revolutionary, two-seater Smart car was developed in conjunction between watchmaker Swatch and Mercedes-Benz. The vehicle was first imported into the US in 2008. Unlike larger vehicles, the Smart only has one fuse block which is located on the driver's side below the dashboard. Unlike most other vehicles, the Smart doesn't have a fuse index on a panel covering, or adjacent to the fuse box. Follow some steps to troubleshoot this.
Take a look at the fuse block and you'll see five groups of fuses. The first batch marked "R1 through "R9" are the backup fuse slots for the ignition, battery and seat heating. The group of four below the "R" group are the 20 and 25 amp fuses for engine, wipers, power windows and blower. They are labelled "1" through "4."
Take a look at the other groups. The group below the 20 and 25 amp group are labelled "5" through "16." The group next to that is labelled "17" through "27." The group below is a group of four labelled "28" through "31." Nearby you'll see a group of four labelled "32" through "35."
Refer to the Smart fuse block guide in the Smart Owner's Manual for each fuse's function. You'll see this on Page 190 (See Resources). For example, the fuse in Position "22" is a 7.5 Amp fuse for the left low-beam headlight. The guide lists the functions, colour and amperage for each fuse on the block labelled "1" through "35."