No, it is not just the 98 ML which has problems with window switches. My driver's switch failed on my wife's 99 ML a few weeks ago. It was 100 degrees outside and the window was stuck down.

A call to MB Roadside assistance, and within 30 minutes, a service truck was at my door and a replacement switch was fitted for no charge with an apology for any inconvenience.

Good deal I thought.