On my 49-state '88 300TE, that spot's dead. I'm thinking some sort of errant light is flickering back there? What happens when you turn the key to "on", but don't start the car? Are all the others working as they should??

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"If God had meant for us to walk, why did he give us feet that fit car pedals?" Sir Sterling Moss

Michael
2014 E63S Estate
2006 SLK55
1995 E500
1986 Porsche 944 turbo