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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > DIY Guides > DIY Powered seat retrofit (WIP)



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      12-12-2021, 09:55 PM   #463
Red Racer
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From what I have found, to keep this seat working for more than 15 - 30secs requires some form of stimulation - K-Can or other stimulation. If connecting to the vehicle (various years), coding and/or attaching to the BMW's computer would be required and is in the earlier conversations.

If you choose not to, you can use my idea of adding the simulation box to both seats to keep the seats active / working. Mine has memory, but does not function. I read earlier that the memory is saved in the vehicle's memory which I don't have.

Sorry - my fix is for a retrofit without a BMW computer simulation.

Thanks for your comments on the fastback. Just couldn't disconnect from BMW's performance. The M5 is incredible at all speeds and the 850i's V12 6sp is smooth a silk over 150mph! You just can't get that in a 50+ year old mustang, but I'll keep trying...
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      12-13-2021, 12:06 PM   #464
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Quote:
Originally Posted by Red Racer View Post
From what I have found, to keep this seat working for more than 15 - 30secs requires some form of stimulation - K-Can or other stimulation. If connecting to the vehicle (various years), coding and/or attaching to the BMW's computer would be required and is in the earlier conversations.

If you choose not to, you can use my idea of adding the simulation box to both seats to keep the seats active / working. Mine has memory, but does not function. I read earlier that the memory is saved in the vehicle's memory which I don't have.

Sorry - my fix is for a retrofit without a BMW computer simulation.

Thanks for your comments on the fastback. Just couldn't disconnect from BMW's performance. The M5 is incredible at all speeds and the 850i's V12 6sp is smooth a silk over 150mph! You just can't get that in a 50+ year old mustang, but I'll keep trying...

hello ,

my question was if I have two seats that are not active. the driver has a module and the passenger does not. I remove them and put two non-active seats, the driver has a module and the passenger also has a module. I then pull the CAN-BUS cables from the passenger to the idrive or JBE or a CAN network splice. then would I have to code? I will not use the memory in the passenger because they are not active. And the passenger seat does not have position sensors (from pins 1 to 4 that are in the connectors of the height or length adjustment or headrest etc. There are only 2 pins, not the 4 since the other 2 correspond to the sensors) So I don't know why it would be necessary to code ... maybe for the car to allow the voltage to be supplied to the module to move the seat, it would give the order that if you can move it with the buttons. otherwise there is power available, there is CAN connection but there is no order from the car and therefore it does not move ... or it moves 15 seconds until it is the turn of the passenger to communicate with the SMFA module and the car tells it to it does not move because it does not recognize it (you have to code)

in europe and spain specifically there are those who dream of a car like yours. I am 50 years or older They are legends here.

A greeting
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      12-16-2021, 06:53 AM   #465
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      12-18-2021, 06:31 PM   #466
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      01-13-2022, 03:38 PM   #467
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I am sure this was answered before, but I could not find it.


I have 2009 LCI E91 leather, non-sport, heated & lumbar support.
Code:
459	Seat Adjustm., Electr. W. Memory	Sitzverstellung, Elektr.mit Memory
488	Lumbar Support Driver/front Passenger	Lordosenstuetze Fahrer/beifahrer
494	Seat Heating F Driver/front Passenger	Sitzheizung Fuer Fahrer/beifahrer
I am looking at donor 2010 LCI E90 leather, sport, heated & lumbar support.
Code:
459	Seat Adjustm., Electr. W. Memory	Sitzverstellung, Elektr.mit Memory
481	Sport Seats F Driver/front Passenger	Sportsitze Fuer Fahrer/beifahrer
488	Lumbar Support Driver/front Passenger	Lordosenstuetze Fahrer/beifahrer
494	Seat Heating F Driver/front Passenger	Sitzheizung Fuer Fahrer/beifahrer
Question for community - would it be plug-and-play swap or I still need wiring, harness or coding?

Last edited by POBEP; 01-13-2022 at 04:18 PM..
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      01-14-2022, 02:06 PM   #468
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Quote:
Originally Posted by POBEP View Post
woodpecka

I am sure this was answered before, but I could not find it.


I have 2009 LCI E91 leather, non-sport, heated & lumbar support.
Code:
459	Seat Adjustm., Electr. W. Memory	Sitzverstellung, Elektr.mit Memory
488	Lumbar Support Driver/front Passenger	Lordosenstuetze Fahrer/beifahrer
494	Seat Heating F Driver/front Passenger	Sitzheizung Fuer Fahrer/beifahrer

I am looking at donor 2010 LCI E90 leather, sport, heated & lumbar support.
Code:
459	Seat Adjustm., Electr. W. Memory	Sitzverstellung, Elektr.mit Memory
481	Sport Seats F Driver/front Passenger	Sportsitze Fuer Fahrer/beifahrer
488	Lumbar Support Driver/front Passenger	Lordosenstuetze Fahrer/beifahrer
494	Seat Heating F Driver/front Passenger	Sitzheizung Fuer Fahrer/beifahrer
Question for community - would it be plug-and-play swap or I still need wiring, harness or coding?
In your case, it's probably gonna be plug and play. Just remember to disconnect the battery before you unplug. With like specs and both LCI, they both probably have the headrest airbag wiring. Some pins were changed between Non-LCI and LCI IIRC, but you shouldn't have that issue.
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