On my '87 300e the front dome light, & door mounted courtesy light, stopped coming on when I open the door. I have switched both door-mounted pins & bulbs with the passenger side, but the driver's side still is dark & the passenger side works fine. Also, I have switched the dome light unit, but the problem remains. Finally, the driver's sunvisor light doesn't work at all, even though the bulb is good. Could a bad visor contact connection of some sort be the problem? Thanks again for your time.
Richard