Z3 Roadster (E36/7) Fuel smell - Bimmerfest - BMW Forums

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E36/7 Z3 (1996-2002)
E36/7 Z3 Roadster, Z3 coupe, Z3 M Roadster and Z3 M Coupe talk with our gurus here.

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Old 11-03-2012, 05:28 PM
Registered User
Location: Salem Nh
Join Date: Sep 2012
Posts: 20
Mein Auto: 99 m Roadster
Fuel smell

Out for a ride today and when the passenger window is down we can smell fuel and yes the gas cap was on
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Old 11-03-2012, 06:40 PM
ronpolley ronpolley is offline
car poor all my life
Location: New Bern,NC,USA
Join Date: May 2011
Posts: 63
Mein Auto: 2001 Z3 3.0i Auto
fuel smell

Our Z3 will also do that on a fresh fill up and shortly afterwards,replaced the fuel cap with no difference.Going to check the return lines when I have some spare time.Not completly filling it seems to make it less of an issue.When I actually find it I will post the fix.
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Old 11-04-2012, 07:42 AM
BK85 BK85 is offline
Registered User
Location: Colorado Springs,CO
Join Date: Sep 2009
Posts: 90
Mein Auto: 97 Z3 2.8
I had the same problem last week after a fill up. I pulled the gas cap, cleaned around the gasket. Also cleaned all the surfaces around the fill pipe where gas may have dripped from the gas pump hose.

No smell after that. I don't know if it was the rubber gasket on the cap not sealing completely or some gas residue around the filler pipe but it's gone now.

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Old 11-04-2012, 02:12 PM
senikc senikc is offline
Registered User
Location: Milledgeville, Ga
Join Date: Oct 2012
Posts: 78
Mein Auto: 1994 Mercedes E320
Fuel smell

Same problem with mine, have found if I fill the tank slowly the gas does not surge back out of the tank and end up puddling in the plastic/rubber boot below the filler neck. Have also used some paper towels below filler neck to catch any overflow when filling, then wipe out any excess gas. No smell this way so far.
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