I RECENTLY NOTICED THE SMELL OF GAS ON THIS VEHICLE OR OF GAS COMING FROM MY REAR SEAT. I TOOK IT TO A MECHANIC SHOP AND HE STATED THAT THE GAS TANK HAD A LEAK ON TOP SOMEWHERE. HE STATED THAT THIS IS A PRETTY COMMON PROBLEM IN THESE MERCEDES. MY KIDS TRAVEL VEHICLE TRAVEL WITH. THEY END UP WITH REALLY BAD HEADACHES. I HAVE READ OTHER POSTS THAT HAVE THE SIMILAR PROBLEM THAT I'M HAVING. I THINK THIS IS A VERY SERIOUS PROBLEM PEOPLE COULD END UP GETTING HURT. SOME COULD GET SERIOUSLY HURT. I WILL COPY THIS MESSAGE. *TR