1999 E300TD with 188K, every time I start car I get a message on dashboard that says “lamp defective”. I can not find any light that is bad. Is there any way to permanently clear message? Or is there a light I may be missing? I’ve checked all headlights, taillights, turnsignals, reverse, license plate, inside dome light, trunk light, all the lights at the bottom of each door. Not a big deal but it is annoying and I’m trying to sell car. I just want the error message permanently cleared. Any help appreciated.