Mechanics

WHY CAN I SMELL GAS WHEN I OPEN THE SUNROOF OR WINDOWS?

1997 BMW 318 • 136,000 miles

The smell of gas when the sunroof is opened and or windows in a 97 bmw 318ti. No smell of gas when windows are closed also no smell of gas outside the vehicle.


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Nibs425
January 9, 2012.



You must have external leak? Any dripping on ground when parked? Any smell when you leave /enter car?

Tiny
Fixitmr
Jan 10, 2012.
No dripping on the ground. When I exit the vehicle there is no smell, also no smell inside. It's only when I open the sunroof. I stood close to the gas tank/ cap and the smell is not as strong as when I open the sunroof. It's weird.

Tiny
Nibs425
Jan 10, 2012.
Must be some kinda leak or venting going on somewhere. Does everyone smell it or are you sorta sensitive in that way?

Tiny
Fixitmr
Jan 10, 2012.
Everyone smells it. It's gone as soon as the roof is closed

Tiny
Nibs425
Jan 10, 2012.
Dont do it with side windows?

Tiny
Fixitmr
Jan 10, 2012.
No it doesnt. What I noticed is that when all three are opened the smell tends to disappear after a while. When I open the sunroof on it's own, instantly you can smell the gas.

Tiny
Nibs425
Jan 10, 2012.
An inspection of the fuel lines and vapor lines and return lines is in order.

Dr. Hagerty
Jan 11, 2012.