I have a 2014 E550 Coupe.

Every once in in a while nothing happens when I press the Start button. After pressing Start, all dashboard lights come on. Pressing the Start button again turns off the dashboard light. So far, the car has always started after a few attempts, but I am starting to worry about the day when it simply won't start, at all...

Anyone else had this problem?

-- Erik

I've had the issue on occasion. I find that holding the button for a second longer and it never happens. I read some old threads where the button contacts gets worn out.