F30POST
F30POST
2012-2015 BMW 3-Series and 4-Series Forum
BMW Garage BMW Meets Register Today's Posts
BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > F30 DIYs and Coding Discussions > F30 2 step boot/tailgate unlock
Extreme Powerhouse
Post Reply
 
Thread Tools Search this Thread
      01-11-2020, 08:43 AM   #1
Stu667
Private
6
Rep
55
Posts

Drives: 2014 320D F30
Join Date: May 2011
Location: Cheshire, UK

iTrader: (0)

F30 2 step boot/tailgate unlock

On my 2014 F30, pressing and holding the boot button on the keyfob will unlock all doors and pop the boot open. This is great except sometimes if the keys are in my pocket, the sheer bulk of my beer gut pressing on them sometimes triggers it. I've been inside the house a few times now, looked out of the window and noticed the boot is up. Luckily nothing has been stolen so far, but I do often have my work laptop in there so it's becoming a bit of a security risk.

I've read that it is possible to code a 2 step process on the fob, so that first you have to unlock the car, then press the boot release button. Does anybody know what the coding is for this please? I'll be attempting it via E-Sys.
Appreciate 0
      01-11-2020, 10:17 AM   #2
funff
Enlisted Member
funff's Avatar
13
Rep
38
Posts

Drives: 320d touring
Join Date: Jul 2017
Location: Wales

iTrader: (0)

I used Bimmercode in advanced mode, or whatever it's called.


It's in the FEM module, and you need to change the following to 'aktiv'.

CLM_OPERATION_BOOTLID_AT_UNLOCKED

With this set to 'aktiv', the tailgate will not open from the remote, until the car is unlocked.
Appreciate 0
      01-11-2020, 10:24 AM   #3
Stu667
Private
6
Rep
55
Posts

Drives: 2014 320D F30
Join Date: May 2011
Location: Cheshire, UK

iTrader: (0)

Quote:
Originally Posted by funff View Post
I used Bimmercode in advanced mode, or whatever it's called.


It's in the FEM module, and you need to change the following to 'aktiv'.

CLM_OPERATION_BOOTLID_AT_UNLOCKED

With this set to 'aktiv', the tailgate will not open from the remote, until the car is unlocked.
Strange, this value is already set to 'aktiv' on my car?
Appreciate 0
      01-11-2020, 10:26 AM   #4
funff
Enlisted Member
funff's Avatar
13
Rep
38
Posts

Drives: 320d touring
Join Date: Jul 2017
Location: Wales

iTrader: (0)

Umm, can't really remember, maybe it's arse about face then? I know that whatever I did, worked! It was certainly something to do with that parameter.
Appreciate 0
      01-11-2020, 11:12 AM   #5
cjn
First Lieutenant
99
Rep
332
Posts

Drives: 2021 F40 M135iX
Join Date: Sep 2018
Location: UK

iTrader: (0)

Here are my fixes for two boot-related 'problems'

1. To reduce the chance of a casual, accidental keypress opening the boot, add a time delay, so you have to keep the button depressed for short time:
FEM_BODY 30D0 RC_TIME_DELAY_BOOTLID
change wert01 (Werte = 05) to Werte=10
After this I never had the experience of going out to the garage and finding the boot open and the car unlocked.

2. To avoid the car doors being unlocked when just opening the boot:
FEM_BODY 3040 CLM_OPERATION_BOOTLID_AT_UNLOCKED
change aktiv to nicht_aktiv
FEM_BODY 3040 CLM_UNLOCK_AT_OPEN_LID
change aktiv to nicht_aktiv
Appreciate 0
      01-12-2020, 07:49 AM   #6
Stu667
Private
6
Rep
55
Posts

Drives: 2014 320D F30
Join Date: May 2011
Location: Cheshire, UK

iTrader: (0)

OK just recoded and there is some improvement. Cjn, I followed your instructions and have managed to add a bigger delay and stop the rest of the car unlocking when the boot is popped, so thanks for that.

Unfortunately CLM_OPERATION_BOOTLID_AT_UNLOCKED doesn't appear to have any effect on my car whether set to active or not. The boot still opens either way.

Any more suggestions on how to force an unlock before boot will open?
Appreciate 0
      01-12-2020, 12:14 PM   #7
cjn
First Lieutenant
99
Rep
332
Posts

Drives: 2021 F40 M135iX
Join Date: Sep 2018
Location: UK

iTrader: (0)

Quote:
Originally Posted by Stu667 View Post
OK just recoded and there is some improvement. Cjn, I followed your instructions and have managed to add a bigger delay and stop the rest of the car unlocking when the boot is popped, so thanks for that.

Unfortunately CLM_OPERATION_BOOTLID_AT_UNLOCKED doesn't appear to have any effect on my car whether set to active or not. The boot still opens either way.

Any more suggestions on how to force an unlock before boot will open?
I think you want it to be necessary to unlock the car before you can open the boot. This is exactly what I didn't want, as I wanted to be able to open the boot without unlocking the doors. Sorry, can't help you there!
Appreciate 0
      04-28-2020, 01:19 PM   #8
saifsayed
Registered
0
Rep
2
Posts

Drives: BMW 420d Convertible
Join Date: Apr 2020
Location: UK

iTrader: (0)

Garage List
Had similar issues, got a key fob cover and that has helped. Something like this: https://www.google.com/url?sa=i&url=...AAAAAdAAAAABAD
Appreciate 0
Post Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 12:54 AM.




f30post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST