so in the last 3 weeks, I've gotten the red error "Fuel Filler" (I think that's the verbiage of the message). Anybody get this before? It makes the gas icon blink alternating yellow and non. The problem comes and goes. The second time it happened, it actually made the loathed "Check Engine" light come on.

I've checked the gas cap, and it seems five-by-five. It seems to seal fine.

Any insight from the experts here?

Thanks in advance.

 

https://mbworld.org/forums/e-class-w211/180312-check-engine-light-2003-e500.html

 

you are the man. I didn't search properly.

Good vibes sent in your direction from me. Thanks.