Sometimes the fix can be real simple and real cheap.
What's wrong with my Mercedes?
Tail lights we are talking all models from 1960s to Mid 1990's - Fog lights only on those with removable lenses.
This can happen on a number of models for a number of reasons
Get rid of and change that ugly head light door yourself. What a difference!!
If your dash is not lighting up at night it could be a number of problems