Fog light error code
Also

but to the coupe owners were are you guys getting your 05 tail lights? I searched ebay and couldn't really find any.



Best way to fix this is to run a new wire from the front SAM to the fog light. If you cannot dig the wire out of the existing harness, start at the SAM and load a new pin in the connector in place of the original fog light wire. Mercedes will sell you the wire and connector pin. (you will probably need some expensive tooling to crimp and load the connector.)



A dealer can fix it, but cannot "clear" it. There is no version coding that allows changing the lamp test for the fog lights.
Test with light tester and you will see its for the fog. As soon as your turn on the car, you will see it light for half a second. Rejoin the broken wire and tap the brown into ground. Issue resolved



