Any ideas? I drive the car (1996 S320) and I smell gas. Not just when I fill up. It occurs whether tank is full, or empty. There is a strong odor of gas in the passenger compartment of the car, most of the time. This is a strange phenomenon, because perhaps 10% of the time there is no smell of gas, but most times, the smell of gas is present. I appreciate any ideas on what this might be, and how I can rectify the situation. Thanks.