Help !!! Flashing Triangle on Dash

['98 MB E320]

I need some help from the site, I recently purchased a 98 MB E320 with 151k mi on it. It was Cpo untill last year so most of the Maint has been done.
But any way,yesterday getting on the expressway in California at about 60 mph I got a flashing Triangle on the dash and the car seemed to lose power when the triangle stop flashing the car seems to be fine.

Also when the cruise is set sometimes it will just kick off (cruise) But the flashing triangle does not flash when the cruise stops.

Any Ideas????


I do know that there are smaller tires on the back (205/55/16) compared to the fronts (215/55/16) if that makes a difference.