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Joined: Mon Sep 15, 2014 7:55 am
Location: Ontario, Canada

Re: Can't code key fob trunk button to open frunk?

Born electric 4/25/15 (2015 REx)
Re-born fully electric 7/27/19 (2019 i3s BEV)
Posts: 11
Joined: Thu Feb 11, 2021 10:39 pm

Re: Can't code key fob trunk button to open frunk?

SSi3 wrote: Fri Apr 01, 2022 5:57 am Success!! :D :D :D!As0dP6vovSY83U_Ctj0QHNg3o6Mb
April Fools! :mrgreen:

Now we have to change the keyfob icon.
Posts: 2683
Joined: Sat Nov 01, 2014 7:36 pm
Location: Honolulu, HI

Re: Can't code key fob trunk button to open frunk?

mrken wrote: Fri Mar 18, 2022 5:09 pmGot remote key 3 to open the frunk! Opened BimmerCode expert mode in Headunit HU_NBT - 3000 HMI and changed all of the KEY_CONF_* settings to aktiv (0x01) and KEY_CONF_TAILGATE_SMALL_NAME to frontgate (0x03). iDrive now shows menu items for the 3rd and 4th remote button.

The trunk entries for the 3rd button changed to bonnet, and the key now opens the frunk on both short and long press. The function for the 4th button also follows the iDrive selection rather than what was coded in RC_DEFAULT_IDG_4TH_BUTTON_MID. Even better being able to change the key function without having to recode. RC_DEFAULT_IDG_4TH_BUTTON_LONG still follows whatever is coded.
Thank you very much for posting this! I don't know how you ever figured this out, but it works on our 2019 U.S. i3.

Several months ago, I had set the BDC (Body Domain Controller) parameter 30D0->RC_DEFAULT_IDG_3RD_BUTTON_MID or maybe 30D0->RC_DEFAULT_IDG_4RD_BUTTON_LONG to Wert_05 = Open frunk (can't recall and sadly didn't document), but that did nothing. I don't need to have the fob buttons 3 and 4 menu in iDrive because I never change the button settings, so I initially tried setting only the HU (Head Unit) parameter 3000->KEY_CONF_TAILGATE_SMALL_NAME to frontgate (0x03) hoping that would be sufficient to change button 3 from opening the hatch to opening the frunk. However, that didn't work. So I followed your instructions completely which added the buttons 3 and 4 menu to iDrive. I then selected "Open front compartment" (or whatever the exact wording is) as the button 3 action, and it works!

Now I need to figure out how to change the number of blinks when pressing the turn signal stalk to only the detent to 5 as I was able to do in our 2014 U.S. i3. Unfortunately, changing the BDC parameter 3069->PIA_DEFAULT_TIPPBLINKEN to werte: 02 (Tippblinken_fuenfmal) did nothing in our 2019 U.S. i3.
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