Have you filled the tank lately? Changed octane or didn't screw the cap on completely?

I know it's a stretch by that too can cause the CE light to come on...

__________________
2009 ML350 (106K) - Family vehicle
2001 CLK430 Cabriolet (80K) - Wife's car
2005 BMW 645CI (138K) - My daily driver
2016 Mustang (32K) - Daughter's car