LCI Sport Seats Swap Restraint System Errors Service Reset Errors

Soravia · 03-21-2020, 05:55 PM

So I just swapped E91 LCI Non Sport seats to E90 LCI Sport Seats. Battery off and all.
In middle of the process, I put in non LCI Vinyl Sport Seats to check the motors all working, so I can sell the pre-LCI Sport seats (without active head rest).
After installing LCI Sport seats and everything connected I get the Passenger Restraint System error.
Code reset with handheld doesn't work either. It comes back. Also having issues is Brake, Oil, Service time codes and distance codes. I can't change them from handheld or the signal stalk. LCD looks different from pre LCI cars on YouTube video instructions. Can't hold the BC button down to reset when I see the reset check box already checked.
They have Negative values for the next service miles
Pics attached

How can I reset them? Seats never had airbag deployment. Seatbelts are with the car and never deployed.

Soravia · 03-21-2020, 07:02 PM

Some say it is caused by occupancy sensor. How do I test of it failed? Pretty expensive at $700+ with bottom foam sold as part of it.

The Nightman · 03-21-2020, 08:21 PM

Did the passenger seatbelt tensioner ignite on the donor seats?

Soravia · 03-21-2020, 09:36 PM

No idea. Supposedly they are all the same on BMWs. But maybe the hardware is different from none sport vs sport? Not sure if the seats came from wrecked car? But then again, driver should be the one coming on?
I made sure the connection seated right. All other motors and stuff work.

Do they swap over? Or should I buy new (used) one?

I think will try swapping over. I can just plug in the original one and see if that fixes the issue

The Nightman · 03-21-2020, 09:46 PM

You can also swap the passenger seat belt buckle from your old seats to the donor ones and see if the code persists

Soravia · 03-22-2020, 06:43 PM

Replaced the seat belt pretension receptors to my original ones. Warning went away after code erase with handheld.
I noticed that 335i sport seat receptor had split pins on one pair (vertical) and my 328i non sport seat receptor had non split pins.
Not sure how that still works on the driver seat.

tlow98 · 03-25-2020, 09:47 PM

Interesting. My non-sport original pre tensioners had the split pins and swapped over to the M3 seats just fine. Maybe it's a build date change?

Mine is 03/09 - early LCI.

03-21-2020, 05:55 PM	#1
Soravia Captain 113 Rep 598 Posts Drives: 2011 E91 Silver xDrive 6MT Join Date: Apr 2013 Location: Kentucky iTrader: (0)	LCI Sport Seats Swap Restraint System Errors Service Reset Errors So I just swapped E91 LCI Non Sport seats to E90 LCI Sport Seats. Battery off and all. In middle of the process, I put in non LCI Vinyl Sport Seats to check the motors all working, so I can sell the pre-LCI Sport seats (without active head rest). After installing LCI Sport seats and everything connected I get the Passenger Restraint System error. Code reset with handheld doesn't work either. It comes back. Also having issues is Brake, Oil, Service time codes and distance codes. I can't change them from handheld or the signal stalk. LCD looks different from pre LCI cars on YouTube video instructions. Can't hold the BC button down to reset when I see the reset check box already checked. They have Negative values for the next service miles Pics attached How can I reset them? Seats never had airbag deployment. Seatbelts are with the car and never deployed. Attached Images
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03-21-2020, 07:02 PM	#2
Soravia Captain 113 Rep 598 Posts Drives: 2011 E91 Silver xDrive 6MT Join Date: Apr 2013 Location: Kentucky iTrader: (0)	Some say it is caused by occupancy sensor. How do I test of it failed? Pretty expensive at $700+ with bottom foam sold as part of it.
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03-21-2020, 08:21 PM	#3
The Nightman Cometh 1090 Rep 1,302 Posts Drives: Boy's Soul Join Date: Jul 2016 Location: Boy's Hole iTrader: (4) Garage List E90 LCI "330i& ... [10.00]	Did the passenger seatbelt tensioner ignite on the donor seats?
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03-21-2020, 09:36 PM	#4
Soravia Captain 113 Rep 598 Posts Drives: 2011 E91 Silver xDrive 6MT Join Date: Apr 2013 Location: Kentucky iTrader: (0)	No idea. Supposedly they are all the same on BMWs. But maybe the hardware is different from none sport vs sport? Not sure if the seats came from wrecked car? But then again, driver should be the one coming on? I made sure the connection seated right. All other motors and stuff work. Do they swap over? Or should I buy new (used) one? I think will try swapping over. I can just plug in the original one and see if that fixes the issue Last edited by Soravia; 03-21-2020 at 09:47 PM..
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03-21-2020, 09:46 PM	#5
The Nightman Cometh 1090 Rep 1,302 Posts Drives: Boy's Soul Join Date: Jul 2016 Location: Boy's Hole iTrader: (4) Garage List E90 LCI "330i& ... [10.00]	You can also swap the passenger seat belt buckle from your old seats to the donor ones and see if the code persists
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03-22-2020, 06:43 PM	#6
Soravia Captain 113 Rep 598 Posts Drives: 2011 E91 Silver xDrive 6MT Join Date: Apr 2013 Location: Kentucky iTrader: (0)	Replaced the seat belt pretension receptors to my original ones. Warning went away after code erase with handheld. I noticed that 335i sport seat receptor had split pins on one pair (vertical) and my 328i non sport seat receptor had non split pins. Not sure how that still works on the driver seat. Last edited by Soravia; 03-22-2020 at 06:56 PM..
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03-25-2020, 09:47 PM	#7
tlow98 Brigadier General 2172 Rep 4,988 Posts Drives: 2009 E91, 2014 F15 x35i Join Date: Aug 2011 Location: Bay Area iTrader: (2)	Interesting. My non-sport original pre tensioners had the split pins and swapped over to the M3 seats just fine. Maybe it's a build date change? Mine is 03/09 - early LCI.
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