CHECK ENGINE LIGHT ON on 2006 Mercedes-Benz E350

WHAT DOES IT MEAN WHEN CHECK ENGINE LIGHT IS ON?

Asked by for the 2006 Mercedes-Benz E350
2 answers
Elena,
The check engine light comes on to let you know that there is a problem with your vehicle that is causing it to potentially emit excessive emissions. You will need to take this to a repair shop where they can connect a computer to your vehicle and read the diagnostic information and perform the appropriate repairs. Here is some more info about the check engine light: http://repairpal.com/check-engine-lighthttp://repairpal.com/check-engine-light
my check engine is on have no ideas of what it means,gas cap is good. if the gas has water in it would it help to put to put water treatment in the gas