ENGINE WIRING HARNESS IS CRUMBLING LIKE CORN BREAD. IT IS CHEAPLY MADE, I READ THAT IT HAS SOMETHING TO DO WITH BEING RECYCLABLE. I HAVE A 50 YEAR OLD CHEVY WITH THE ORIGINAL WIRING HARNESS AND IT IS FINE. I WOULD NEVER, NEVER BUY ANOTHER MERCEDES BENZ AGAIN IN MY LIFE AND WILL WARN EVERYONE I KNOW. *NM