Why can I smell gas when I open the sunroof or windows?

Tiny
NIBS425
  • 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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Monday, January 9th, 2012 AT 4:04 PM

7 Replies

Tiny
FIXITMR
  • MEMBER

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

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Tuesday, January 10th, 2012 AT 6:06 AM
Tiny
NIBS425
  • MEMBER

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.

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Tuesday, January 10th, 2012 AT 8:12 PM
Tiny
FIXITMR
  • MEMBER

Must be some kinda leak or venting going on somewhere. Does everyone smell it or are you sorta sensitive in that way?

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Tuesday, January 10th, 2012 AT 8:16 PM
Tiny
NIBS425
  • MEMBER

Everyone smells it. It's gone as soon as the roof is closed

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Tuesday, January 10th, 2012 AT 8:23 PM
Tiny
FIXITMR
  • MEMBER

Dont do it with side windows?

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Tuesday, January 10th, 2012 AT 8:25 PM
Tiny
NIBS425
  • MEMBER

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.

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Tuesday, January 10th, 2012 AT 8:28 PM
Tiny
DR. HAGERTY
  • EXPERT
  • 9,741 POSTS

An inspection of the fuel lines and vapor lines and return lines is in order.

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Wednesday, January 11th, 2012 AT 3:34 AM

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