Hazard switch from a 1977 W116.  Part number is 001 821 93 51.  This was used in the W116, W108, W114 and R107 models.  Please make sure yours has a similar part number and has "8124" ABOVE THE WORDS HAZARD; EVEN THOUGH I'VE LISTED THIS AS COMPATIBLE WITH VARIOUS MODELS, THE ONE YOU ARE REPLACING MUST SAY 8124.  (THE WHITE HAS RUBBED OFF THE LETTERS THAT FORM THE WORD HAZARD).