Tailgate SLAM fix

Sophisticated Redneck · 03-20-2021, 02:11 PM

When I purchased my X5 used, its rear hatch motors were pretty worn and the tailgate would SLAM shut with force, I thought it was just due to wear. It always bothered me however how unnecessary it was and not fitting for a BMW with soft close to slam the hell out of the rear hatch.
Fast forward to yesterday and I noticed this thread on the F15 formus: https://f15.bimmerpost.com/forums/sh....php?t=1789147. So I am assuming this is not unique to my X5 and many other E70 owners are also having this issue since it was passed on to the F15.

This fix applies to the E70 also. I used Protools to code but I am sure many of the other coding apps will work too. Took less then 5min to fix. Along the way I learned that the hexadecimal values are divided into 9 segments that each segment controls approx 10 degrees of motion.

To fix just pull up the Tailgate ECU and find the DREHZAL_SEGMENT_SCHL entry and define the hexadecimal values you would like to use.
Below are videos and pics of the before and after coding. You can adjust the values to whatever you prefer but I decided to slow down the rear hatch long before it latches in steps.

Keep in mind its hexadecimal so use an online calculator to convert (example if you want a 20% closing speed at the last 10 degrees of movement before it latches, 20 in hex is 14. Also if you go too slow it can freak out the safety override as it thinks the hatch is stuck and will open back up.
Here are the values I used: 10161E262E36404040 this translates to a transition of speed from 64% to 16% right before it latches. The stock speed was 64% all the way down to latch/close.

Stock:

Coded:

ryansbmw · 03-20-2021, 04:36 PM

Excellent! Does this also apply to opening? Sometime it seems like mine releases a little too fast will stop after just starting to open

Nyc Dito · 03-21-2021, 02:29 PM

THANK YOU! I saw the F15 post and messed around in ProTool and couldn't figure out the wert value to use or any specific number(s). I changed date "Data:01" to "Data:02" to see if it did anything, nope.. nothing I can tell.

Anyway, thanks!.. going to give this a shot next weekend. E70 is away this week getting a couple of mods done.

Sophisticated Redneck · 03-21-2021, 02:45 PM

Quote:

Originally Posted by ryansbmw

Excellent! Does this also apply to opening? Sometime it seems like mine releases a little too fast will stop after just starting to open

That's an excellent question there's a value right above that might control the opening speed I'll mess around with it and see what it does and report back.

Sophisticated Redneck · 03-21-2021, 02:47 PM

Quote:

Originally Posted by Nyc Dito

THANK YOU! I saw the F15 post and messed around in ProTool and couldn't figure out the wert value to use or any specific number(s). I changed date "Data:01" to "Data:02" to see if it did anything, nope.. nothing I can tell.

Anyway, thanks!.. going to give this a shot next weekend. E70 is away this week getting a couple of mods done.

I tried that too and then notice the hexadecimal values were the same of 40 in all nine entries. So what you have to do is add a custom value like I did in the pictures above. Make sure to do a backup of the tailgate ECU before you make any modifications.

I would first try adding the values I have listed exactly as I know those work and then from there you can experiment with different values for different closing speeds depending on your preference.

If you slow it down too quickly I noticed it will trip the safety measures and it thinks the hatch is stuck or ran into something and will open back up so if you see that phenomenon just adjust it to be a little quicker or slow it down in steps.

Dawgz · 03-21-2021, 09:47 PM

Very nice!!

Dave00 · 03-22-2021, 11:48 AM

OUTSTANDING!!! Great work man and I'm going to give this a shot next time I'm able to get to the X5M.

nodemgr · 03-22-2021, 01:06 PM

Thanks for the information!

On my vehicle I was able to fix(to my ears anyways/temporarily?) the slam issue by adjusting the receiving latches on both the bottom tailgate and the top tailgate. I moved them in, that is, towards the front of the vehicle. By doing that I believe that the tailgate is now hitting the rubber seal before the actual latch, when closing, and not causing the crashing noise.

Dave00 · 04-20-2021, 02:50 PM

Just gotta say, you sir are a genius!!! Finally got a chance to code my X5M this past weekend with this tailgate adjustment and why the HELL did BMW not do this from the factory??? Man it closes so nice now and actually works like almost all the other SUV's on the market.

mitch808 · 04-20-2021, 03:42 PM

darn android only...

ryansbmw · 04-20-2021, 10:57 PM

Quote:

Originally Posted by mitch808

darn android only...

Get yourself a cheap tablet to keep in the car just for Protool. It’s worth it

Dave00 · 04-21-2021, 07:08 AM

Quote:

Originally Posted by ryansbmw

Get yourself a cheap tablet to keep in the car just for Protool. It’s worth it

Yes it is!!! It's also worth it to dump your Apple phone

argento · 09-27-2021, 05:33 PM

Just did this and it worked exactly as stated. In ProTool you'll find it under [as of 26May2023]: Chassis>HKL Tailgate>Coding>Edit Coding>Expert>3020 Kinematik> DREHZAL_SEGMENT_SCHL

Sophisticated Redneck Thanks so much for your insight on this and many other areas

Sophisticated Redneck · 10-02-2021, 05:07 AM

Quote:

Originally Posted by argento

Just did this and it worked exactly as stated. In ProTool you'll find it under CHASSIS>HKL TAILGATE>CODING>EDIT CODING>EXPERT>DREHZAL_SEGMENT_SCHL

Sophisticated Redneck Thanks so much for your insight on this and many other areas

Happy to hear that worked out for you too. No more cringing every time it closes

m5james · 02-24-2022, 12:41 AM

Cool but it's noticeably slower closing.

NJX5D · 02-25-2022, 12:44 PM

Great info. I was wondering the same on mine

mitch79 · 02-27-2022, 01:07 AM

Excellent, thank you. Nice soft close now. I too hated the rear hatch slamming closed.
I coded the HKL with NCSexpert and edited the trace file with NCS Dummy creating a custom line under DREHZAL_SEGMENT_SCHL. Values I used are 10,26,38,40,40,40,40,40.

argento · 02-27-2022, 10:33 AM

Has anyone tried a closing speed of 15? Next time I'm in there I'm going to try it.

0-60Motorsports · 03-02-2022, 12:39 AM

Nice mod

camelius · 05-23-2023, 09:26 AM

Great mod. 10161E262E36404040 worked like a charm on e71 X6.
Thank you for that.

wcs531 · 05-23-2023, 09:57 AM

Will be doing this as well and probably messing with the values, thanks for the post.

Edit: Removed question - I wasnt converting all the numbers....hex values make sense

argento · 05-26-2023, 07:43 PM

I'm glad you brought this up, I just went in there and changed my code for a 20% drop at close, up from 16%. A little smoother to me, will try it out for a while. The coding menu location in Bimmergeeks ProTool changed since my last posting above, new location:

Chassis>HKL Tailgate>Coding>Edit Coding>Expert>3020 Kinematik>DREHZAL_SEGMENT_SCHL

Custom Value = 14161E262E36404040

This custom value results in 64% for the first 10deg of motion, and 20% for last 10deg of motion.

03-20-2021, 02:11 PM	#1
Sophisticated Redneck Lieutenant Colonel 1414 Rep 1,564 Posts Drives: 2012 BMW X5 50i Join Date: Jul 2018 Location: CA iTrader: (0)	Tailgate SLAM fix When I purchased my X5 used, its rear hatch motors were pretty worn and the tailgate would SLAM shut with force, I thought it was just due to wear. It always bothered me however how unnecessary it was and not fitting for a BMW with soft close to slam the hell out of the rear hatch. Fast forward to yesterday and I noticed this thread on the F15 formus: https://f15.bimmerpost.com/forums/sh....php?t=1789147. So I am assuming this is not unique to my X5 and many other E70 owners are also having this issue since it was passed on to the F15. This fix applies to the E70 also. I used Protools to code but I am sure many of the other coding apps will work too. Took less then 5min to fix. Along the way I learned that the hexadecimal values are divided into 9 segments that each segment controls approx 10 degrees of motion. To fix just pull up the Tailgate ECU and find the DREHZAL_SEGMENT_SCHL entry and define the hexadecimal values you would like to use. Below are videos and pics of the before and after coding. You can adjust the values to whatever you prefer but I decided to slow down the rear hatch long before it latches in steps. Keep in mind its hexadecimal so use an online calculator to convert (example if you want a 20% closing speed at the last 10 degrees of movement before it latches, 20 in hex is 14. Also if you go too slow it can freak out the safety override as it thinks the hatch is stuck and will open back up. Here are the values I used: 10161E262E36404040 this translates to a transition of speed from 64% to 16% right before it latches. The stock speed was 64% all the way down to latch/close. Stock: Coded: Attached Images Last edited by Sophisticated Redneck; 03-20-2021 at 02:31 PM..
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03-20-2021, 04:36 PM	#2
ryansbmw Lieutenant 176 Rep 546 Posts Drives: 2013 X5 35i M-Sport, 2010 535x Join Date: Jun 2017 Location: NJ iTrader: (1)	Excellent! Does this also apply to opening? Sometime it seems like mine releases a little too fast will stop after just starting to open __________________ VRSF CP & DP \| BMS Intake \| MHD 2+ Tune \| BavSound Stage 1 \| 20% Tint Need coding or modules reset? PM me
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03-21-2021, 02:29 PM	#3
Nyc Dito First Lieutenant 113 Rep 300 Posts Drives: BMW X5 35d Join Date: Mar 2019 Location: NYC iTrader: (0)	THANK YOU! I saw the F15 post and messed around in ProTool and couldn't figure out the wert value to use or any specific number(s). I changed date "Data:01" to "Data:02" to see if it did anything, nope.. nothing I can tell. Anyway, thanks!.. going to give this a shot next weekend. E70 is away this week getting a couple of mods done. __________________ E70 LCI 35D Sutphin trans tune///xDelete///What EGR?
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03-21-2021, 09:47 PM	#6
Dawgz 2022 M4 Comp Xdrive 1015 Rep 1,538 Posts Drives: 2022 M4 Comp Xdrive Join Date: Feb 2019 Location: USA iTrader: (0)	Very nice!!
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03-22-2021, 11:48 AM	#7
Dave00 Private First Class 37 Rep 119 Posts Drives: 2013 BMW X5M Join Date: Apr 2019 Location: Houston, TX iTrader: (0)	OUTSTANDING!!! Great work man and I'm going to give this a shot next time I'm able to get to the X5M.
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03-22-2021, 01:06 PM	#8
nodemgr Private First Class 28 Rep 129 Posts Drives: 2011 M3 ZCP Coupe 6MT Join Date: May 2016 Location: SoCal iTrader: (2)	Thanks for the information! On my vehicle I was able to fix(to my ears anyways/temporarily?) the slam issue by adjusting the receiving latches on both the bottom tailgate and the top tailgate. I moved them in, that is, towards the front of the vehicle. By doing that I believe that the tailgate is now hitting the rubber seal before the actual latch, when closing, and not causing the crashing noise.
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04-20-2021, 02:50 PM	#9
Dave00 Private First Class 37 Rep 119 Posts Drives: 2013 BMW X5M Join Date: Apr 2019 Location: Houston, TX iTrader: (0)	Just gotta say, you sir are a genius!!! Finally got a chance to code my X5M this past weekend with this tailgate adjustment and why the HELL did BMW not do this from the factory??? Man it closes so nice now and actually works like almost all the other SUV's on the market.
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04-20-2021, 03:42 PM	#10
mitch808 Captain 107 Rep 994 Posts Drives: 2012 X5 35i Join Date: Mar 2014 Location: Seattle iTrader: (0)	darn android only... __________________ 2012 X5 xDrive35i Sport Activity - Alpine White - M Sport Package
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09-27-2021, 05:33 PM	#13
argento Captain 538 Rep 872 Posts Drives: 2013 X5M Join Date: Mar 2012 Location: Houston iTrader: (0)	Just did this and it worked exactly as stated. In ProTool you'll find it under [as of 26May2023]: Chassis>HKL Tailgate>Coding>Edit Coding>Expert>3020 Kinematik> DREHZAL_SEGMENT_SCHL Sophisticated Redneck Thanks so much for your insight on this and many other areas __________________ 2013 X5M AW/Blk Build Thread: https://www.xbimmers.com/forums/show....php?t=1499820 Last edited by argento; 05-26-2023 at 07:44 PM..
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02-24-2022, 12:41 AM	#15
m5james Colonel 431 Rep 2,062 Posts Drives: '10 X5M Alpine White on Sakhir Join Date: Aug 2015 Location: Marysville, WA iTrader: (0)	Cool but it's noticeably slower closing. __________________ '10 BMW X5///M - Alpine White on Sakhir Orange - JB4 w/ HCP Stage 2 BEF, NGK 97506 @ .20, SS tubing & BMC filters, gutted cats, AC Forged 312 22's, H&R 2" '98 BMW 740iL - ///E39 M5 6spd swap, fully built engine (sleeved, P&P, cams), 3.46 LSD, H&R Stage 2/Bilstein HD, Magnaflow 14816's '97 BMW 328ci - ///E36 M3 clutch & L/W flywheel, Z4///M 18's
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02-25-2022, 12:44 PM	#16
NJX5D New Member 0 Rep 11 Posts Drives: '12 X5D, '05 Excursion 6.0L Join Date: Aug 2021 Location: NJ iTrader: (0)	Great info. I was wondering the same on mine
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02-27-2022, 01:07 AM	#17
mitch79 Registered 0 Rep 3 Posts Drives: E70 X5 40D Join Date: Nov 2021 Location: Australia iTrader: (0)	Excellent, thank you. Nice soft close now. I too hated the rear hatch slamming closed. I coded the HKL with NCSexpert and edited the trace file with NCS Dummy creating a custom line under DREHZAL_SEGMENT_SCHL. Values I used are 10,26,38,40,40,40,40,40.
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02-27-2022, 10:33 AM	#18
argento Captain 538 Rep 872 Posts Drives: 2013 X5M Join Date: Mar 2012 Location: Houston iTrader: (0)	Has anyone tried a closing speed of 15? Next time I'm in there I'm going to try it. __________________ 2013 X5M AW/Blk Build Thread: https://www.xbimmers.com/forums/show....php?t=1499820
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03-02-2022, 12:39 AM	#19
0-60Motorsports Brigadier General 792 Rep 3,151 Posts Drives: BMW M3 JB 04 Coupe Join Date: Aug 2007 Location: Kingdom of Bahrain iTrader: (1)	Nice mod __________________ Current Mods: 2004 E46 M3cs JB/CSL 2010 E70 X5M AW/BLACK 2011 VW Golf R DSG White/Black IG: @060Motorsports
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05-23-2023, 09:26 AM	#20
camelius Registered 0 Rep 1 Posts Drives: Golf VI Join Date: Jan 2016 Location: Turkey iTrader: (0)	Great mod. 10161E262E36404040 worked like a charm on e71 X6. Thank you for that.
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05-23-2023, 09:57 AM	#21
wcs531 Second Lieutenant 97 Rep 281 Posts Drives: E90 335xi / E70 X5d Join Date: Jul 2014 Location: Philadelphia iTrader: (1)	Will be doing this as well and probably messing with the values, thanks for the post. Edit: Removed question - I wasnt converting all the numbers....hex values make sense
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05-26-2023, 07:43 PM	#22
argento Captain 538 Rep 872 Posts Drives: 2013 X5M Join Date: Mar 2012 Location: Houston iTrader: (0)	I'm glad you brought this up, I just went in there and changed my code for a 20% drop at close, up from 16%. A little smoother to me, will try it out for a while. The coding menu location in Bimmergeeks ProTool changed since my last posting above, new location: Chassis>HKL Tailgate>Coding>Edit Coding>Expert>3020 Kinematik>DREHZAL_SEGMENT_SCHL Custom Value = 14161E262E36404040 This custom value results in 64% for the first 10deg of motion, and 20% for last 10deg of motion. __________________ 2013 X5M AW/Blk Build Thread: https://www.xbimmers.com/forums/show....php?t=1499820 Last edited by argento; 05-26-2023 at 08:10 PM..
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