2007 R320 CDI, Marker light fuse?

[Gregory]

The warning came on that the right front marker light was out. Lights on, checked, yup, its dark.

Took off the cover on the front bumper for the fog light space, reached in with a screwdriver and pushed the rear clip to pop the fixture out of the side of the car.

Changed the bulb, no joy. Tested the socket, no 12v.

Looked online for hours to find a R320 fuse chart, nada.

If you know the fuse number for this, please also mention which of the three fuse boxes its in. Thanks!