No brake lights (SLK) - which fuse(s)?

[stu99]

Warning light on dash indicated that a bulb was gone. When I checked, all three brake lights were out of operation. I'm assuming this is a fuse but which one? I've located the fuse box in dash but it seems that a few fuses may be involved.

Is it reasonable for all three lights to be knocked out at the same time? If so, not a particularly impressive design.

Any suggestions or checklist I can work through?

Thanks in advance for any input.

 

[marnix]

Have you checked the switch, which is located above the brake pedal.
Common fault to have the switch to fail.