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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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  #51  
Old 08-29-2012, 06:33 PM
msol msol is offline
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Location: North Hollywood
 
Join Date: Oct 2009
Posts: 8
Mein Auto: 2002 525i
Wow!!! that one was less complicated than mine. Mine was a PAIN ON THE A$$ to remove the motors that control the height and tilt of the seat. Mine is a 2002 525i. I uploaded a video on you tube so if this video helps anybody it'll serve its purpose..

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  #52  
Old 08-29-2012, 06:35 PM
msol msol is offline
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Location: North Hollywood
 
Join Date: Oct 2009
Posts: 8
Mein Auto: 2002 525i
Wow!!! that one was less complicated than mine. Mine was a PAIN ON THE A$$ to remove the motors that control the height and tilt of the seat. Mine is a 2002 525i. I uploaded a video on you tube so if this video helps anybody it'll serve its purpose..

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  #53  
Old 01-04-2013, 05:52 PM
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Stone Roots Stone Roots is offline
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Location: San Diego, CA
 
Join Date: Jun 2010
Posts: 285
Mein Auto: 2003 E39 2009 E60
My wifes parents gave her their old 2009 E60 (what horrible parents, huh?) and shes been pregnant for the last 6 months so ive been driving the E60 over my old E39.

Now that ive been spoiled with this thing - and as much as I have loved driving my E39 its time to sell it so that I can purchase a F10.

The biggest issues with the E39 is the seats - they both twist. Driver side seat recline twists on the left - while the passenger seats recline and tilt both twist.

I watched a video today about the wire snipping method - however they said that you are to feel the wire while you engage the motor and snip the one that doesn't vibrate. But they both vibrate.

I'd guess that I would snip the wire that effects the side that does not move - but I didnt want to do anything until I talked with some others who have performed the seat twist fix already.

BTW: If anyone is looking to sell a late model E60 M5 or an early model F10 M5 in the Southern California area let me know. Also it has to be black exterior - black interior and manual transmission (thats not asking for too much is it?)

Thanks,

SR
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  #54  
Old 01-04-2013, 06:15 PM
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bluebee bluebee is offline
Seek to understand,^Value
Location: San Jose, California
 
Join Date: Mar 2008
Posts: 23,449
Mein Auto: 02 BMW 525i M54 auto 130K
See also:
- How to identify seat twist & fix twisted seats (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) (13)
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Please read the suggested threads, where the best always add value to those threads, either by pictures or by descriptions, so the next person with the same problem stands on your shoulders.
See also: E39 Bestlinks & How to easily find what you need
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  #55  
Old 01-05-2013, 06:31 AM
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Studawg Studawg is offline
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Location: SC
 
Join Date: Mar 2012
Posts: 259
Mein Auto: 2003 540iT M Sport
The e39 I just bought had seat twist on both side, the back recline and also the seat bottom height. I was able to fix both adjustments on both seats without removing anything, with just a razor blade and needlenose visegrips. Lucky me!
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  #56  
Old 04-02-2015, 08:17 PM
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bluebee bluebee is offline
Seek to understand,^Value
Location: San Jose, California
 
Join Date: Mar 2008
Posts: 23,449
Mein Auto: 02 BMW 525i M54 auto 130K
I posted the following in a thread today where folks were trying to figure out which motor is for which operation.
> E39 (1997 - 2003) > seat twist issue-which motor controls seat height?

EDIT: I must admit, it's confusing, even after looking at the realoem diagrams and trying to compare them to the pictures in this thread ...
Quote:
Originally Posted by bluebee View Post
I have both my front seats askew (one has a "seat bottom tilt" while the other has the "seat back twist"), and am waiting for that round tuit, to fix them, so, I'll be looking at this thread for details...

In the meantime, this is, supposedly, the canonical thread currently in the bestlinks, for reference ... (but I think we need a "more canonical" thread):
- How to repair seat twist (1)

Here is a photo showing some of the motors, from a cross-referenced thread by ElwoodBlues for a 2002 530i Sport seat (drivers side):

I think that photo confused me more than it helped me...

How many motors are there anyway?
1. Seat height?
2. Seat back tilt?
3. Seat cushion tilt?
4. Headrest height?
5. Lumbar support? (sport seats)
6. ?

In hindsight, we probably need a better compendium of seat-twist related threads other than what is in the bestlinks to date ... which is this list:
- Seat cables that fall out causing seat twist (1) (2) (3) (4) (5) (6) (7) (8) (9) (10)

When I work on my front seats, I'll see if I can compile a better listing of threads, so we all benefit.
Meanwhile, I lurk ...

EDIT: Looking at Realoem for my 2002 525i with (I think) non-sport, heated seats, with memory, I'm confused which motor is which, as there are two dozen diagrams to choose from (and I'm not even sure how to tell which seat I have, as I don't know my E39 option code for the seats).

NOTE: I don't know how much it matters whether you have the "sport" seat, or the "comfort" seat, and whether they're heated, or if they have memory (or if the headrest is electrical) but you can figure out your original seats by entering your VIN into this VIN decoder, which provided a PDF of my car showing my seats are (confusingly):
a. S459A Sitzverstellung elektrisch mit Memory Seat adjuster, electric, with memory (I think this is the non-sport comfort seat?)
b. S470A Isofix-System Isofix-System (aka "babyseat latches")
c. S494A Sitzheizung Fahrer/Beifahrer Seat heating driver/passenger (aka "heated seats")

On this diagram (titled: "FRONT SEAT FRAME MECH./EL./SINGL.PARTS"), the part #13 motor says "DRIVE F VERTICAL AND BACKR.TILT ADJUSTM" (which motor is that, in English?)

The other motor is on this diagram (titled: "FRONT SEAT RAIL ELECTRICAL/SINGLE PARTS"), the part #3 is called "DRIVE F LONGITUDINAL AND TILT ADJUSTMENT" (whatever that means in English):

Bill: I was hoping the diagrams would help you figure out the motors; but, they confuse me, not the least of which is what they call the identified motors:
A. (#13) DRIVE F VERTICAL AND BACKR.TILT ADJUSTM
B. (#3) DRIVE F LONGITUDINAL AND TILT ADJUSTMENT

Questions borne of diagramatic confusion:
Q1: Is #13 the backrest motor, while #3 the cushion motor?
Q2: Is #13 two motors in one?
Q3: What is the mystery motor (no part number) in the second diagram?
Q4: Do you have comfort seats (do they have an additional motor?)
__________________
Please read the suggested threads, where the best always add value to those threads, either by pictures or by descriptions, so the next person with the same problem stands on your shoulders.
See also: E39 Bestlinks & How to easily find what you need

Last edited by bluebee; 04-02-2015 at 08:33 PM.
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