Engine light goes on and off and on and off

[revabob]

I have Mercedes C280 1998 with only 20k miles. Just recently my engine light went on. After a few days it goes off. After another few days it goes on and so on and so on.... No noticeable driving conditions whatsoever. I check gas cap already...seems fine.

Thanks in davance for your feedback.

[stevebfl]

Pull the codes and see what the car thinks.