Why does your Mercedes smell like gasoline for a week after filling the tank?

If your Mercedes smells like gasoline for a week after filling the tank, it could indicate a fuel leak or an issue with the fuel evaporative emissions system. Possible causes include a loose or damaged gas cap, a fuel line leak, or a problem with the charcoal canister that captures fuel vapors. It's essential to address this issue promptly, as it can pose safety risks and affect vehicle performance. Consider having a mechanic inspect the vehicle to identify and resolve the source of the odor.