135i AT rough start from a stop

bbadillo · 12-03-2009, 02:37 PM

Hey guys,

I have noticed recently sometimes(about 1/10) stops when i completely stop let go of the break and start, I dont get off to a smooth start, it feels almost as if the transmission decides to shift to 2nd from 1st or something. Like right when i lift my foot off the break, maybe there is this hesitation and then i feel a little kick. no noise or any power loss. Whats strange is it only happens in drive, not DS, or MD.

3k miles, JB+ only mods.

hockeymutt · 12-03-2009, 03:33 PM

i have the save problem i think... have about 1,600 on mine i think its how the tranny learned my driving from babying it for the first month or so.... you can goto the dealer and see if they will reset it so it can re-learn your driving habits.... it annoys the shit outta me tho cause im used to manuals and bought an auto

shawshank772 · 12-03-2009, 05:16 PM

Do a little more searching here and e90 post its a common problem. Something along the lines of the brake assist programing in the car/how the throttle is set up. It mostly does it when the car is initially started/cold. Im no tech guru but thats what I remember reading.

bbadillo · 12-03-2009, 08:54 PM

it almost does feel like break assist, strange

Berduderunner · 12-03-2009, 08:59 PM

This happens w. both my 135 and my dad's 335. I'm almost positive its the brakes not wanting to release when they havn't been warmed up (after a few minutes it tends to stop).

shawshank772 · 12-03-2009, 09:10 PM

NO doubt that this forum is slowly dying. 75 views and hardly any responses..Ill look for some more educated answers and post them here.

shawshank772 · 12-03-2009, 09:20 PM

Ok, below you will find some links and I actually realized something. About a week ago I had the car in for service and they updated the software. Its been in the 30s here in Chicago and it hasnt jerked once from a stop. Now with that said, reading through some of these it seems there is a software fix. This most likely explains why I havent had the jerk in cold temps since I got the car reprogramed.

http://www.e90post.com/forums/showth...ght=jerks+stop

http://www.e90post.com/forums/showth...ght=jerks+stop

http://www.e90post.com/forums/showth...ght=jerks+stop

http://www.e90post.com/forums/showth...ks+stop&page=2

bbadillo · 12-03-2009, 10:41 PM

thanks shawshank, exactly describes what i experience. Interesting I need to upgrade the software, stupid assist

dub shih · 01-29-2013, 11:31 AM

Quote:

Originally Posted by shawshank772

Ok, below you will find some links and I actually realized something. About a week ago I had the car in for service and they updated the software. Its been in the 30s here in Chicago and it hasnt jerked once from a stop. Now with that said, reading through some of these it seems there is a software fix. This most likely explains why I havent had the jerk in cold temps since I got the car reprogramed.

http://www.e90post.com/forums/showth...ght=jerks+stop

http://www.e90post.com/forums/showth...ght=jerks+stop

http://www.e90post.com/forums/showth...ght=jerks+stop

http://www.e90post.com/forums/showth...ks+stop&page=2

Those links were associated with the 3 series so when I presented the TSB in they just said it did not apply for me.

Do you have specifics on how they fixed you 1?

I'm in the Chicago burbs and this thing is driving me nuts!

12-03-2009, 02:37 PM	#1
bbadillo Private First Class 14 Rep 139 Posts Drives: 09 Black 135i, JB+ Join Date: Jul 2009 Location: San Francisco,Ca iTrader: (1)	135i AT rough start from a stop Hey guys, I have noticed recently sometimes(about 1/10) stops when i completely stop let go of the break and start, I dont get off to a smooth start, it feels almost as if the transmission decides to shift to 2nd from 1st or something. Like right when i lift my foot off the break, maybe there is this hesitation and then i feel a little kick. no noise or any power loss. Whats strange is it only happens in drive, not DS, or MD. 3k miles, JB+ only mods.
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12-03-2009, 03:33 PM	#2
hockeymutt Private 5 Rep 76 Posts Drives: 135i silver,prem/sport package Join Date: Oct 2009 Location: california iTrader: (0)	i have the save problem i think... have about 1,600 on mine i think its how the tranny learned my driving from babying it for the first month or so.... you can goto the dealer and see if they will reset it so it can re-learn your driving habits.... it annoys the shit outta me tho cause im used to manuals and bought an auto
	Appreciate 0 Quote

12-03-2009, 05:16 PM	#3
shawshank772 Major 119 Rep 1,159 Posts Drives: 08 135i and 16 M3 Join Date: Aug 2007 Location: Chicago iTrader: (1)	Do a little more searching here and e90 post its a common problem. Something along the lines of the brake assist programing in the car/how the throttle is set up. It mostly does it when the car is initially started/cold. Im no tech guru but thats what I remember reading.
	Appreciate 0 Quote

12-03-2009, 08:54 PM	#4
bbadillo Private First Class 14 Rep 139 Posts Drives: 09 Black 135i, JB+ Join Date: Jul 2009 Location: San Francisco,Ca iTrader: (1)	it almost does feel like break assist, strange
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12-03-2009, 08:59 PM	#5
Berduderunner drk one 38 Rep 797 Posts Drives: 2008 135i Join Date: Dec 2007 Location: Tampa/Orlando iTrader: (0) Garage List 2008 e90 335i [0.00] 2008 135i [0.00]	This happens w. both my 135 and my dad's 335. I'm almost positive its the brakes not wanting to release when they havn't been warmed up (after a few minutes it tends to stop). __________________ Jet Black \| Coral \| HighGlossBlack \| Steptronic \| Premium \| Sport \| Comfort \| ActiveSteering \| Navi \| HiFi \| HD \| iPod \| SAT BMS JB3 v2.0 \| BMS DCI \| Berk Tech Sport Exhaust \| UR * DPs \| CoolingMist Meth Kit w/ CMGS \| H&R OE Sport Springs \| Breyton GTS-R \| Dunlop Direzza Sport Z1 Star Specs \| GP Thunder 8000K Low Beams/Angel Eyes/Cornering Lights \| LED Interior Light Kit \| Window Tint \| Smoked Tail Lights \| Smoked License Plate Cover
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12-03-2009, 09:10 PM	#6
shawshank772 Major 119 Rep 1,159 Posts Drives: 08 135i and 16 M3 Join Date: Aug 2007 Location: Chicago iTrader: (1)	NO doubt that this forum is slowly dying. 75 views and hardly any responses..Ill look for some more educated answers and post them here.
	Appreciate 0 Quote

12-03-2009, 09:20 PM	#7
shawshank772 Major 119 Rep 1,159 Posts Drives: 08 135i and 16 M3 Join Date: Aug 2007 Location: Chicago iTrader: (1)	Ok, below you will find some links and I actually realized something. About a week ago I had the car in for service and they updated the software. Its been in the 30s here in Chicago and it hasnt jerked once from a stop. Now with that said, reading through some of these it seems there is a software fix. This most likely explains why I havent had the jerk in cold temps since I got the car reprogramed. http://www.e90post.com/forums/showth...ght=jerks+stop http://www.e90post.com/forums/showth...ght=jerks+stop http://www.e90post.com/forums/showth...ght=jerks+stop http://www.e90post.com/forums/showth...ks+stop&page=2
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12-03-2009, 10:41 PM	#8
bbadillo Private First Class 14 Rep 139 Posts Drives: 09 Black 135i, JB+ Join Date: Jul 2009 Location: San Francisco,Ca iTrader: (1)	thanks shawshank, exactly describes what i experience. Interesting I need to upgrade the software, stupid assist
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