Active Backrest Retrofit
ok, makes sense. After running in the garage and checking I believe they're just the comfort seats. Not the active ones. May end up being easier/better for me anyway! Thanks for that.
I just done this retrofit to my old comfort seats... Drivers bolsters doesnt work, motors make little sound when pressing button, but no movement. I can see control signal coming when pressing button via oscilloscope. Passengers upperpart adjust doesnt work, motor is totally silent. Anyone got ideas for the drivers seat? Modules are coded and can be diagnosed.
Thread Starter
Senior Members
Joined: Oct 2009
Posts: 1,380
Likes: 4
From: Indiana, USA
My Ride: 2007 530xi: Sport, NAV, PDC, HUD, Cold Wthr, CA, Logic 7, HD Radio, SAT, Custom NCS coded options 2008 535xi: Sport, Night Vision, NAV, PDC, HUD, Cold Wthr, CA, Logic 7, SAT, Custom NCS coded options, Rear Seat Heat Retrofit, Passport 9500ci
Model Year: 2008
Engine: N54
I just done this retrofit to my old comfort seats... Drivers bolsters doesnt work, motors make little sound when pressing button, but no movement. I can see control signal coming when pressing button via oscilloscope. Passengers upperpart adjust doesnt work, motor is totally silent. Anyone got ideas for the drivers seat? Modules are coded and can be diagnosed.
If so, move the control module from the passenger side to the driver side to test it out
Thread Starter
Senior Members
Joined: Oct 2009
Posts: 1,380
Likes: 4
From: Indiana, USA
My Ride: 2007 530xi: Sport, NAV, PDC, HUD, Cold Wthr, CA, Logic 7, HD Radio, SAT, Custom NCS coded options 2008 535xi: Sport, Night Vision, NAV, PDC, HUD, Cold Wthr, CA, Logic 7, SAT, Custom NCS coded options, Rear Seat Heat Retrofit, Passport 9500ci
Model Year: 2008
Engine: N54
New Members
Joined: Aug 2017
Posts: 6
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From: Klaipėdos Apskritis
My Ride: E60 almost full
Model Year: 2008
Hey NoQuarter.
Can you help? Look, I need codes for all parts which includes this retrofit. Motors, Buttons (DTC, ACTIVE back rest and Heating) on the center console and all others. Can you share this information? I would appreciate that.
Also have maybe more pictures? Because your first page does not show pictures any more, because they are very old. THANK YOU!
Can you help? Look, I need codes for all parts which includes this retrofit. Motors, Buttons (DTC, ACTIVE back rest and Heating) on the center console and all others. Can you share this information? I would appreciate that.
Also have maybe more pictures? Because your first page does not show pictures any more, because they are very old. THANK YOU!
Last edited by eimantas28; Sep 24, 2017 at 02:01 AM.
Thread Starter
Senior Members
Joined: Oct 2009
Posts: 1,380
Likes: 4
From: Indiana, USA
My Ride: 2007 530xi: Sport, NAV, PDC, HUD, Cold Wthr, CA, Logic 7, HD Radio, SAT, Custom NCS coded options 2008 535xi: Sport, Night Vision, NAV, PDC, HUD, Cold Wthr, CA, Logic 7, SAT, Custom NCS coded options, Rear Seat Heat Retrofit, Passport 9500ci
Model Year: 2008
Engine: N54
I will fix the images But it has been too long since I worked on this so any notes I have on parts I may not be able to find.
If you use realoem.com you will find all the part numbers you need.
Edit: Pics should be working now
If you use realoem.com you will find all the part numbers you need.
Edit: Pics should be working now
Last edited by NoQuarter; Sep 24, 2017 at 09:04 AM.
Thread Starter
Senior Members
Joined: Oct 2009
Posts: 1,380
Likes: 4
From: Indiana, USA
My Ride: 2007 530xi: Sport, NAV, PDC, HUD, Cold Wthr, CA, Logic 7, HD Radio, SAT, Custom NCS coded options 2008 535xi: Sport, Night Vision, NAV, PDC, HUD, Cold Wthr, CA, Logic 7, SAT, Custom NCS coded options, Rear Seat Heat Retrofit, Passport 9500ci
Model Year: 2008
Engine: N54


