Did a search and read through a page of results but no answer to my particular problem [well if i could solve all of my 'particular problems', the search would be amazing!]...on my 1994 e320 wagon, the headlight wipers park erratically on both sides, sometimes in the correct horizontal position, and sometimes not. to keep it interesting, sometimes the left doesn't park correctly, and then sometimes the right. anyone know how to solve this problem?