Has anyone had a problem with a faint gas smell blowning from the vents? My 04 c230 Coupe had a fuel smell coming from the vents last week. It was faint and I thought I was nuts, but on Friday I had my 05 e320 being serviced and they gave me a 05 e230 loaner and I swear to god it had a faint fuel smell coming in from it's vents. I have never had this in my e320. Any help would be great.