Anyway to disable "Soft Stop" Feature via update?

nick380 · 11-12-2013, 05:59 PM

I drive a 2007 335i sedan, and I have been searching for a while now on how to remove this feature known as "Soft Stop" or "Comfort Stop". I have attempted to get used to way the brakes function, but I have not been able to do so. So I'd like to try to have this removed via coding or an upgrade to my DME maybe? I read somewhere that an update was released that was supposed to resolve the jerk you get when you try to come to a complete stop a.k.a "Soft Stop". Any suggestions would be much appreciated

thakid22 · 11-14-2013, 01:45 AM

To disable Comfort(Soft)Stop you need to code the DSC module.
Change the following to nicht_aktiv

SST
aktiv

That will turn it off completely. It is interesting to note that I only had issues with the function of Comfort Stop
on early E90's. The system seems to have been refined on LCI models. The Comfort stop on the E60 is transparent in its
operation, as well. Perhaps an update of the DSC module can give our early E90's Comfort Stop the more refined feel of
the latter versions, without disabling the feature totally. There is a DSC update available for my 06 330i, but I have yet to apply it.
I'll report back here if I do.

nick380 · 11-14-2013, 09:09 AM

Thanks for being so informative

! I feel like our models in specific are actually the epitome of sports vehicles at the time and maybe they wanted to go for a more sporty feel, so maybe they expect you to pound on the brakes like a race driver? Haha. But of course the idea is to get the perfect stop, but alright let me know! I would be very interested to find out if an update would make the comfort stop nice like in the e60s!

VTECaddict · 11-16-2013, 01:36 PM

I don't think I've ever felt that kick in...

Otruba_843 · 11-16-2013, 01:56 PM

Quote:

Originally Posted by VTECaddict

I don't think I've ever felt that kick in...

Me neither, although no matter how hard I try to get it to stop so you barley notice it, the brakes always bight at the end. I do know that soft stop has to do with the ABS system so if you don't want it, disable your ABS which I don't think you want to do. You will lose the auto drying brake feature as well.

thakid22 · 11-18-2013, 06:48 AM

Quote:

Originally Posted by VTECaddict

I don't think I've ever felt that kick in...

When it works properly, you'd be hard pressed to notice Comfort Stops operation.

Comfort Stop operates during the last 1ft (approximately) of a light to medium stop. What it does is release the pressure applied to the rear brakes as the vehicle decelerates for those last few inches before coming to a complete stop. The effect of this, is to reduce the jolt and body motion (passenger and vehicle) that occurs during these stops. It smooths the feel of the stop.

When Comfort Stop is activated, you can here the rear brakes release. It sounds almost like an electronic parking brake being set.

thakid22 · 11-18-2013, 06:51 AM

Quote:

Originally Posted by nick380

Thanks for being so informative

! I feel like our models in specific are actually the epitome of sports vehicles at the time and maybe they wanted to go for a more sporty feel, so maybe they expect you to pound on the brakes like a race driver? Haha. But of course the idea is to get the perfect stop, but alright let me know! I would be very interested to find out if an update would make the comfort stop nice like in the e60s!

I planned to update the DSC module to see if Comfort Stop operation improved, but my daten files were lacking, which caused my update to fail.

I am now in the process of updating my daten files correctly and will the update the DSC module. The system shows that there is a DSC module update for my 06 330i and I'm pretty sure this Comfort Stop has been addressed by it. When I get the update flashed, I'll let you know the results.

nick380 · 11-18-2013, 10:07 AM

Perfect! I'd be interested in seeing if an update would indeed make the feature less jerky.

Quote:

Originally Posted by thakid22

I planned to update the DSC module to see if Comfort Stop operation improved, but my daten files were lacking, which caused my update to fail.

I am now in the process of updating my daten files correctly and will the update the DSC module. The system shows that there is a DSC module update for my 06 330i and I'm pretty sure this Comfort Stop has been addressed by it. When I get the update flashed, I'll let you know the results.

rpoitras · 11-18-2013, 10:38 AM

I was hoping to be able to enable this on my 2010 X5 and although I have the SST variable in my whole car backup file (set to nicht_aktiv), it is not listed when I read out the DSC module. I would have thought this feature is really just software and wouldn't require additional hardware so not sure why its not available. I do have Auto-Hold which allows you to take your foot off the brake when stopped so I assumed any necessary hardware is already there.

d1saster · 11-19-2013, 10:22 AM

I set SST to nicht_aktiv but the jurky stop is still present. I notice that sometimes it is not there though. I read in the brakes section that it may be the front bushing are worn?

thakid22 · 11-19-2013, 12:24 PM

Quote:

Originally Posted by d1saster

I set SST to nicht_aktiv but the jurky stop is still present. I notice that sometimes it is not there though. I read in the brakes section that it may be the front bushing are worn?

Then Comfort Stop is not the cause of your jerky stops.

There are two other probable causes for your issue.
Both deal with the transmission.
The ZF Auto can get a bit clumsy on the 2-1 downshift causing a slight jolt or bump
as the vehicle comes to a stop. You can use INPA to clear your tranny adaptations. This will smooth the shifts eliminating the jerk. The jerk can return though. For a permanent fix, the ATF fluid needs to be changed.

Another cause for jerky stops is the Neutral Idle Control. It disengages the torque converter at stops in gear to save fuel. Supposedly it can get a little harsh sometimes. Search the forums a bit to learn more about this one and if it applies to your car or not. New tranny fluid cured my jerky stops so I never tried disabling NIC.

d1saster · 11-21-2013, 09:08 AM

Clearing the transmission adaptations fixed the problem, but like you said it'll probably return. Ordered the pan and will change the oil this weekend.

Thanks for all you help.

nate5ks · 11-22-2013, 05:30 AM

Quote:

Originally Posted by thakid22

Quote:

Originally Posted by nick380

Thanks for being so informative

! I feel like our models in specific are actually the epitome of sports vehicles at the time and maybe they wanted to go for a more sporty feel, so maybe they expect you to pound on the brakes like a race driver? Haha. But of course the idea is to get the perfect stop, but alright let me know! I would be very interested to find out if an update would make the comfort stop nice like in the e60s!

I planned to update the DSC module to see if Comfort Stop operation improved, but my daten files were lacking, which caused my update to fail.

I am now in the process of updating my daten files correctly and will the update the DSC module. The system shows that there is a DSC module update for my 06 330i and I'm pretty sure this Comfort Stop has been addressed by it. When I get the update flashed, I'll let you know the results.

Would you mind posting the zb number you use for the update? I would appreciate it.

Turkish Mafia · 12-02-2013, 09:34 AM

I have a 2007 335i E92, in my DSC module I have SST, but it is currently set at wert_01. When I try to make it nicht_aktiv, I get an error.

I tried wert_00, but it made no difference. Any advice on shutting this off?

11-12-2013, 05:59 PM	#1
nick380 Second Lieutenant 106 Rep 200 Posts Drives: 2021 M5 Competition Join Date: Oct 2013 Location: California iTrader: (1)	Anyway to disable "Soft Stop" Feature via update? I drive a 2007 335i sedan, and I have been searching for a while now on how to remove this feature known as "Soft Stop" or "Comfort Stop". I have attempted to get used to way the brakes function, but I have not been able to do so. So I'd like to try to have this removed via coding or an upgrade to my DME maybe? I read somewhere that an update was released that was supposed to resolve the jerk you get when you try to come to a complete stop a.k.a "Soft Stop". Any suggestions would be much appreciated Last edited by nick380; 11-12-2013 at 05:59 PM.. Reason: Added Car
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11-14-2013, 01:45 AM	#2
thakid22 Lieutenant 287 Rep 595 Posts Drives: 2021 Bmw M340i M-Sport w/ VDC Join Date: May 2013 Location: Little Rock iTrader: (0)	To disable Comfort(Soft)Stop you need to code the DSC module. Change the following to nicht_aktiv SST aktiv That will turn it off completely. It is interesting to note that I only had issues with the function of Comfort Stop on early E90's. The system seems to have been refined on LCI models. The Comfort stop on the E60 is transparent in its operation, as well. Perhaps an update of the DSC module can give our early E90's Comfort Stop the more refined feel of the latter versions, without disabling the feature totally. There is a DSC update available for my 06 330i, but I have yet to apply it. I'll report back here if I do.
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11-14-2013, 09:09 AM	#3
nick380 Second Lieutenant 106 Rep 200 Posts Drives: 2021 M5 Competition Join Date: Oct 2013 Location: California iTrader: (1)	Thanks for being so informative ! I feel like our models in specific are actually the epitome of sports vehicles at the time and maybe they wanted to go for a more sporty feel, so maybe they expect you to pound on the brakes like a race driver? Haha. But of course the idea is to get the perfect stop, but alright let me know! I would be very interested to find out if an update would make the comfort stop nice like in the e60s! __________________ 2021 F90 M5 Competition mods: M-performance trunk spoiler, IND side skirts and front splitter. 335i Manual Swap Project http://www.e90post.com/forums/showthread.php?t=1207505
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11-16-2013, 01:36 PM	#4
VTECaddict Where'd my VTEC go? 479 Rep 6,067 Posts Drives: 06 330i 6MT Join Date: Mar 2009 Location: Seattle, WA iTrader: (4)	I don't think I've ever felt that kick in... __________________ AW/Terra \| ZSP \| ZPP \| ZCW \| iDrive \| CA Mods: BC BR coilovers \| Blacklines \| M-tech rear \| dual exhaust \| M3 steering wheel \| BMW SSK \| ZHP shift knob \| High-kick CF spoiler \| NBT Retrofit M3 front control arms \| M3 rear guide rods \| Manzo rear toe and camber links \| Monroe rear shock mounts \| Varrstoen ES1 19x9.5+20 Front, 19x11+25 rear
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11-18-2013, 10:38 AM	#9
rpoitras New Member 0 Rep 6 Posts Drives: 2006 330xi Join Date: Feb 2009 Location: Long Island, NY iTrader: (0)	I was hoping to be able to enable this on my 2010 X5 and although I have the SST variable in my whole car backup file (set to nicht_aktiv), it is not listed when I read out the DSC module. I would have thought this feature is really just software and wouldn't require additional hardware so not sure why its not available. I do have Auto-Hold which allows you to take your foot off the brake when stopped so I assumed any necessary hardware is already there.
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11-19-2013, 10:22 AM	#10
d1saster Captain 60 Rep 675 Posts Drives: F15 N55 & E93 N51 Join Date: Oct 2012 Location: Las Vegas iTrader: (0)	I set SST to nicht_aktiv but the jurky stop is still present. I notice that sometimes it is not there though. I read in the brakes section that it may be the front bushing are worn?
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11-21-2013, 09:08 AM	#12
d1saster Captain 60 Rep 675 Posts Drives: F15 N55 & E93 N51 Join Date: Oct 2012 Location: Las Vegas iTrader: (0)	Clearing the transmission adaptations fixed the problem, but like you said it'll probably return. Ordered the pan and will change the oil this weekend. Thanks for all you help.
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12-02-2013, 09:34 AM	#14
Turkish Mafia Captain 92 Rep 709 Posts Drives: E92 335i (6/2007) Join Date: Apr 2007 Location: NYC iTrader: (4)	I have a 2007 335i E92, in my DSC module I have SST, but it is currently set at wert_01. When I try to make it nicht_aktiv, I get an error. I tried wert_00, but it made no difference. Any advice on shutting this off?
	Appreciate 0 Quote