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E39 (1997 - 2003)
The BMW 5-Series (E39 chassis) was introduced in the United States as a 1997 model year car and lasted until the 2004 when the E60 chassis was released. The United States saw several variations including the 525i, 528i, 530i and 540i. -- View the E39 Wiki

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  #1  
Old 03-15-2008, 01:08 PM
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EddieNYC EddieNYC is offline
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Mein Auto: 2003 530i
seat cushion lumbar pain ache (E39 Sport)-Followup

Well, the lumbar thing was killing my back, so I decided to give it a try. My seats are the E39 sports seats with leg extension.

Thanks to these guys:

http://www.bimmerfest.com/forums/sho...ghlight=lumbar

http://bimmer.roadfly.com/bmw/forums/e39/8332549-1.html

http://bimmer.roadfly.com/5series/me...w03/36964.html
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Remove two lower screws from seat back cover. (pic 10)
Pull down on seat back cover.
Seat back exposed. (pic 1)
Attach zip-ties to lower lumbar spring and bottom frame (pics 2 to pic 6)
Bottom frame has 3 holes and 2 outlets at the right position for this mod. (pic 9)
Pull in on zip ties and see spring come in, away from the foam.
Re-attach seat back cover. (Pic 11 and 12)
re-screw in.
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Pics 7 and 8 are shows how the leather is attached to the seat frame. These little pointy tabs are all around the seat, so you could with patience, replace the leather.
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It seems to work
Next seat drama: Adding foam to the seat/butt area. Probably do this from underneath.
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Last edited by EddieNYC; 03-15-2008 at 01:13 PM.
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Old 08-25-2015, 08:12 AM
Arawak420 Arawak420 is offline
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Thanks for the post. Bought e39 and could barely drive in Comfort till this post
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Old 08-25-2015, 08:45 AM
bobdmac bobdmac is offline
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Mein Auto: 2001 540i/6, '90 k75s
Nice search job, finding this DIY from 2008. This forum has deep veins of knowledge, and it's always a pleasant surprise to see some of it resurface from time to time.
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