my switches fell apart at 60,000mi ,and it is a 98 . I have heard of many problems with the 98 ml that were corrected in 99,00,01,02 so hopefully yours is ok g-benz. thank god for my extended waranty! it has paid for itself with new cats new fuel pump + regulator and new rear hatch latch.oh yea the harmonic balancer also seperated one day! $1,900.00 so far on a $1,100.00 policy from the starmark program I am ahead of the game. the dealer said the harmonic balancer is a fairly common problem. good luck john.......................................