F12/F13 seat wiring for project car

offpage · 09-24-2023, 01:49 PM

Hi all!

I am working on a project restomod for an older BMW coupe and picked up a set of F13 seats because of the integrated seat belt and ability to fold forward - photo attached.

I am trying to put power to the seats to get the basic movements working, but can't seem to get it to work. I don't need all of the functions to work, but do need to be able to adjust the seats.

I thought I'd ask here in case anyone has experience or can point me to a resource for help. I'm SoCal and also open to working with someone locally if that is necessary.

I did find a post an another forum site where a user said they were able to get basic functionality by powering the pin 1 solid Red, and then all of the Brown and Red/Brown wires to -12v negative. But that hasn't worked for me.

Thanks in advance for any help!

dennisb · 01-25-2024, 08:23 PM

Hi, I'm working on the same seats at the moment. I did connect 2 big red wires and two small red wires together to 12+ and 2 broun (big) and two smaller brown wires to 12-. It was working. Now I'm trying to see if they got a timer or if it's my battery dying.

offpage · 03-17-2024, 11:47 AM

I got them to work temporarily by connecting those wires. The seats need to be upright. I believe that without a can signal, they time out and then stop working. Still working to find a way around this, I am in the middle of trying something that I can post if it works or not - but if anyone else solves this before me, please let me know - thanks!

09-24-2023, 01:49 PM	#1
offpage New Member 0 Rep 5 Posts Drives: 2800CS / E46 M3 Join Date: Sep 2023 Location: Los Angeles iTrader: (0)	F12/F13 seat wiring for project car Hi all! I am working on a project restomod for an older BMW coupe and picked up a set of F13 seats because of the integrated seat belt and ability to fold forward - photo attached. I am trying to put power to the seats to get the basic movements working, but can't seem to get it to work. I don't need all of the functions to work, but do need to be able to adjust the seats. I thought I'd ask here in case anyone has experience or can point me to a resource for help. I'm SoCal and also open to working with someone locally if that is necessary. I did find a post an another forum site where a user said they were able to get basic functionality by powering the pin 1 solid Red, and then all of the Brown and Red/Brown wires to -12v negative. But that hasn't worked for me. Thanks in advance for any help! Attached Images
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01-25-2024, 08:23 PM	#2
dennisb Registered 0 Rep 4 Posts Drives: F13 Join Date: Jan 2024 Location: CA iTrader: (0)	Hi, any luck? Hi, I'm working on the same seats at the moment. I did connect 2 big red wires and two small red wires together to 12+ and 2 broun (big) and two smaller brown wires to 12-. It was working. Now I'm trying to see if they got a timer or if it's my battery dying.
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03-17-2024, 11:47 AM	#3
offpage New Member 0 Rep 5 Posts Drives: 2800CS / E46 M3 Join Date: Sep 2023 Location: Los Angeles iTrader: (0)	I got them to work temporarily by connecting those wires. The seats need to be upright. I believe that without a can signal, they time out and then stop working. Still working to find a way around this, I am in the middle of trying something that I can post if it works or not - but if anyone else solves this before me, please let me know - thanks!
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