Hi Stephen:

The right hand parking/tail light is fuse #3 on my 87300E - a white fuse. Sometimes the fuses look OK, and sometimes even test out OK, but occasionally have a hairline crack or corrosion which causes intermittent failure.



Is the bulb OK, does switching the right hand and left hand bulbs make any difference? Do the other things on that fuse work OK - License plate, headlight wipers, etc? If the fuse, bulb, and everything else on that #3 fuse circuit are OK, I would check the headlight switch. Do the standing lights for the right side come on when selected from the dash headlight switch?

If it isn't the switch, some people have reported corrosion under the fuse box is possible where wires join the fuse contacts. You could run a wire outside the car from the fuse contact to the bulb and see if it is a wiring problem.

Good luck

__________________
John

2003 Firemist Red/grey leather SL 500
2015 Palladium Silver/black mbtex GLK 350
1987 Smoke Silver/burgundy mbtex 300E Sportline (SOLD)

Click to see 87 300E