M1 M2 retrofit kit confirmed working on i4 LOL | Page 3 | BMW i4 Forum
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I really should have taken more pictures, but it’s really not that complicated at all, you can see from the 3rd picture on @Technic last post the complete buttons and the transmitter, those all go inside the steering wheel with the split connectors for power and the wrapped transmitter.

And on his previous post, you can see the receiver module and the harness (#1, 2). Those go inside the shifter console and the splitter cable connectors to the shifter module. The hardest part is really removing the airbag, if you can do that you’ll have no problem installing the buttons.
I'm just confused as to what parts to order, but I haven't really taken notes as I've gone through the thread. My impression is you need to order the paddles separate from the module? I'm fine with doing everything other than the high voltage system (only because I've never done it), but if I have a tutorial I would be fine.
 
lol, I was doing the same thing. I'm trying to consolidate down a parts list, install steps, and associated tutorials where I can find them. I think this is the parts list, but would love if any other folks have validated. I'll update as any new info comes in
 
This looks like an expensive tweak to avoid reaching down with your Left hand to change the mode.. How often do you folks flip between different modes :)
I switch every time I see a fast car! 😁 And given I'm usually trying to hit the button in a hurry (while driving), I view this mod as a money saver since it's gonna help me not crash! 😅
 
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Discussion starter · #45 ·
This looks like an expensive tweak to avoid reaching down with your Left hand to change the mode.. How often do you folks flip between different modes :)
This is like one of the cheapest mod with real function, if going by your logic, then comfort entry, auto headlight, auto high beam etc etc, are all expensive tweaks? lol
 
lol, I was doing the same thing. I'm trying to consolidate down a parts list, install steps, and associated tutorials where I can find them. I think this is the parts list, but would love if any other folks have validated. I'll update as any new info comes in
Disconnecting the battery on the i4 has a very specific procedure:

- Find flap on right-side of trunk, remove
Image


- Look for red tab (3) on fusebox:
Image


- Pull red tab out - disconnect 12V battery from HV - and lock:

- Check message on display - confirm 12V battery disconnection:
Image


- Disconnect negative post from 12V battery under hood:
Image


To reconnect 12V to HV battery, follow steps in reverse.
-

If you are unsure that you can follow these instructions then it means that you need a professional installer to install your parts.
 

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Those videos are "private" and unviewable.
 
Discussion starter · #52 ·
@larbel Are you able to switch through all modes with the buttons (sport, sport boost, sport individual, etc) or just the three categories (sport, comfort, eco)?
It cycles through all modes. Like when you're at Sport, and press M1 again, it goes to Sport Boost, and then again for Sport Individual. But if you press M2 when you're at Sport Individual, it goes straight to Comfort instead of Sport Boost then Sport.
 
I'm dragging my feet on this cuz I'd like to also add carbon fiber trim at the same time, but that costs more than the button upgrade. I'm wondering if a stock G80 or G82 wheel (with DAPP) will work the same? That way I could hold on to my stock wheel and switch them back when I sell the car.
 
Not really following what you're asking... The buttons are pretty cheap, the carbon fiber trim isn't, but you can always revert back to the original trim and remove the buttons when you sell the car. As for G80/G82 steering wheels.. Wouldn't that be much more expensive unless you already have one lying around? As for the question if they works... depends... The G80/G82 already have the M buttons wirings inside, so you'll need to replace the PCB in the buttons, plus might need to code to disable the original M buttons, or it might throw an error when the original wiring is disconnected?
I was thinking that upgrading the existing wheel will cost around $1k for buttons and carbon fiber trim ($300 for the button setup and $700 for the carbon fiber parts). A used wheel is about $1,200. BUT, if buying an entire wheel, you'd be able to recoup most of that money down the road by reselling it. If upgrading the existing wheel, you can't sell it since you wouldn't have an extra.
 
Discussion starter · #56 ·
I was thinking that upgrading the existing wheel will cost around $1k for buttons and carbon fiber trim ($300 for the button setup and $700 for the carbon fiber parts). A used wheel is about $1,200. BUT, if buying an entire wheel, you'd be able to recoup most of that money down the road by reselling it. If upgrading the existing wheel, you can't sell it since you wouldn't have an extra.
True, but you can also sell the carbon fiber trim and the buttons on their own as well, should even be easier to sell then a used wheel.
 
True, but you can also sell the carbon fiber trim and the buttons on their own as well, should even be easier to sell then a used wheel.
I was thinking the exact opposite, but 🤷. Either way, if I'm not positive it'll work as is, I'm not doing it. Thanks for the help.
 
lol, I was doing the same thing. I'm trying to consolidate down a parts list, install steps, and associated tutorials where I can find them. I think this is the parts list, but would love if any other folks have validated. I'll update as any new info comes in
Just to make sure. The AliExpress kit is $160 or thereabouts; correct?
 
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