Yeah started car up yesterday and noticed that my engine light was one, i did not refil yet, so no my petrol cap is tight, i also had this problem on my E55 but it went away in a few days, the car drives normal, so i think its just another glitch, gonna go to the service tomorow and whine about it, and ask them to give me somthing for free lol Btw with this purchase i already got:

free rubber mats
free cooler bag
2 mercedes hats
SIlver grill
front and rear metal things from a sport pakage

Thats not bad eh!? :p

 

good deal! hopefully its something simple.

 

Did you try removing and putting the gas cap on just in case, even though you haven't refilled?

 

Might check the real spellling of "somthing".