[Leez]

Originally Posted by at-jefft

I have E90 seats from a 2011(Power,Heated, W/ Memory). I can't get any movement from the drivers seat.

I have 12V+ to pin 4 (large red) and 12V- to Pin 8 and 13 (large brown). The seat won't move even for a second. Lumbar works though.

I have also tried 5V+ to Can_H and 5V- to Can_L. Still no movement.






Anyone know how to get the drivers module to wake up? All the other modules I've seen are black, mine is white. Is this related to the later model year or related to memory seats? Anyone successfully been able to bench test the memory seats without being installed in a car?

I'm having the same issue. I used a 555 timer with a 12>5 buck converter and can't get the seats to wake up with the white controllers

[at-jefft]

Originally Posted by Leez

I'm having the same issue. I used a 555 timer with a 12>5 buck converter and can't get the seats to wake up with the white controllers

I was never able to get the controller to work. I ended up transplanting the E34 wiring harness into the seats. Basically just connect the E90 motors where the E34 motors used to be connected. You loose the memory function, but I got everything else working.

Hopefully someone smarter than me figures out a better solution.

[fleetfoot]

Using info from this thread and others, I wrote a thorough (3000 words with pics) DIY for anyone looking to put OG M2 seats in their LCI E92. Some of the info will be relevant for other retrofits as well.

https://www.e90post.com/forums/showthread.php?t=2130316

[swissboy89]

Hi all.

many years back I owned a 120d. On that I have upgraded some things where dealers officially had me sign papers confirming I was told what I'm trying to do with the parts I want to purchase is impossible.

Fast forward to 2025, I own a new to me 2009 330d for replacing the 2009 325i which I have driven for a while. The 325i came with electric and heated seats, the 330d had only heated but not electric seats. The killer feature I wanted to port from the 325i to the 330d was obviously the automatic passenger side mirror movement when reversing.

Having a background in electronics engineering, this was going to be simple, right?
Nearly. The pinouts in this thread were useful, thanks!

On the passenger side all that was missing, was a second positive supply line, and considering the 325 had only one positive supply line for the driver side (but not the passenger), I just split the one that was there for pins 4 and 9. Done, bolsters, heat and movement works.

On the driver side IIRC I had to move the positive supply line from pin 9 to pin 4 and connect the CAN-bus. I wired that up to the I-Drive controller. Done, bolsters, heat and movement works.

What's missing though is the mirror adjustment when reversing.
I have not exchanged the mirrors between the two cars, but i know the 325 has 3 pins in the mirror connector on the passenger side, while the 330d has 5 pins in the connector.

I sort of expected to find something something bordsteinkante somewhere, but either I'm using the wrong tools for the job (Launch 123X with the BMW addon paid for and installed), or I'm doing something wrong.

Any help greatly appreciated!

Cheers from Switzerland!

[swissboy89]

hi all.
so in the past couple days i did the following:
short version: wired up LIN-BUS to the passenger mirror, wired power, coded the driver seat and aussenspiegelpaket. it actually works

[ptpending]

int e9x the mirror lin bus is not directly bound to the seats
you can only swap mirrors, repin and add wiring for lin bus and bordsteniautomatik will work
the seats with memory only need if you want to bind the memory button, seat position and mirror glass position