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E85 / E86 Z4 (2003-2008)
E85 Z4 Roadster, E86 Z4 Coupe, E85 Z4 M Roadster, and E86 Z4 M Coupe talk with our BMW gurus here.

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  #1  
Old 05-15-2015, 11:58 AM
matman1115 matman1115 is offline
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Location: MD
 
Join Date: Jul 2011
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Mein Auto: 2007 Z4 3.0i roadster
Exclamation Seatbelt chime keeps coming on even though buckled

I've been having a problem with my 2007 Z4 roadster (3.0). When I have a passenger in the passenger seat, with the belt buckled, the "fasten seatbelt" chime (along w/ light) frequently starts going off. Sometimes it stops of its own accord, but more often the solution is to jiggle/jostle the seatbelt buckle. It seems possibly related to the sensor in the seat that tells the car if someone is sitting there, as it happens very infrequently with my wife sitting there, but happens quite a lot with my son (10 years old, ~65 lbs) sitting there.

Has anyone ever heard of this sort of intermittent issue? How can I figure out if it's a problem with the sensor in the seat or with the buckle housing that senses the presence of the buckle? How to fix it?

Thanks!
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Old 05-15-2015, 12:08 PM
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tim330i tim330i is online now
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Location: SF
 
Join Date: Dec 2001
Posts: 7,791
Mein Auto: Ti Silver 03 M3
I moved this to the Z4 forum for you, you will get more help in here.

Tim
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Old 05-15-2015, 12:10 PM
matman1115 matman1115 is offline
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Mein Auto: 2007 Z4 3.0i roadster
Thanks -- I wasn't sure where to post, since the mechanism is probably not unique to the Z4 (I assume it's the same as in the 3-series, at least, if not virtually all Bimmers from that model year. Doesn't seem to be a general troubleshooting forum or anything like that.
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