Rough cold start idle

wwc310 · 07-23-2013, 11:10 AM

Can anyone tell me what the issue is here? Or is this normal? I am not touching the accelerator at all. The engine is revving on its own.

Sorry for the A/C blowing in the background

Mposer · 07-23-2013, 11:16 AM

Mine does the same thing. Been to the dealer 3-4 times, they can "never replicate" the issue. Some of the other posts on this say to try a fuel system cleaner. I have done it, "helped" for a little bit.

Good luck, keep us posted if you figure it out.

TeinBMW · 07-23-2013, 11:25 AM

Ask for the new dme update.

wwc310 · 07-23-2013, 11:31 AM

Quote:

Originally Posted by TeinBMW

Ask for the new dme update.

Do you know which one specifically? I researched yesterday and found it was for cars produced in 2010. Mine was produced in 2011

krazysk8er · 07-23-2013, 11:46 AM

my car just did that when i was in reverse gear though, gona take it in. such a long wait for loaner cars in NY area..

norsairius · 07-23-2013, 11:47 AM

Quote:

Originally Posted by wwc310

Do you know which one specifically? I researched yesterday and found it was for cars produced in 2010. Mine was produced in 2011

I went to the dealer for this same issue. Work record says they did SIB 12-21-12.

Worked for a 128 driver: http://www.1addicts.com/forums/showthread.php?t=793635
Also worked for me and I posted some details here: http://www.e90post.com/forums/showthread.php?t=847335

Doesn't seem to be anything too bad though. Good luck!

TeinBMW · 07-23-2013, 12:07 PM

Not sure which version. I've got a 2011 335xi and I know there are new updates out there the dealer told me. I'm booked in for the upgrade so hopefully that solves it. The last told me that she had it done in her 2011 335i and it solved all her probs.

TeinBMW · 07-23-2013, 12:08 PM

Does any one know exactly which update I have to ask for when I take it in?

wwc310 · 07-23-2013, 12:49 PM

Quote:

Originally Posted by TeinBMW

Does any one know exactly which update I have to ask for when I take it in?

+1

TeinBMW · 07-23-2013, 12:59 PM

Quote:

Originally Posted by wwc310

Quote:

Originally Posted by TeinBMW

Does any one know exactly which update I have to ask for when I take it in?

+1

Last time I took it in asking for the newest updated because my cobb wasnt working on the current version on my car, and they lied to me saying oh yah it's up to date, we updated it and blah blah. I got home and tried installing my cobb again and it's still on the same version. So I'm taking it in to a diff place and goint say specifically update to this version but I don't no what the current version is lol.

gibumee · 07-23-2013, 06:24 PM

I have the same issue. It happens more often when I have the AC on. I'm going in for a PPK install this weekend so I will see if they can find the cause and fix it.

wwc310 · 07-23-2013, 06:36 PM

Quote:

Originally Posted by gibumee

I have the same issue. It happens more often when I have the AC on. I'm going in for a PPK install this weekend so I will see if they can find the cause and fix it.

keep us posted!

GarlicBread · 07-23-2013, 08:08 PM

Definitely not normal fuel cleaner might help

5tony · 07-23-2013, 08:10 PM

I've got this too on my '11 335i. Only does it when almost cold. If the car sits for more than 6 hours, it starts fine. If it sits 3-5 hours it will oscillate the idle when I start it.

wwc310 · 07-23-2013, 10:37 PM

Quote:

Originally Posted by 5tony

I've got this too on my '11 335i. Only does it when almost cold. If the car sits for more than 6 hours, it starts fine. If it sits 3-5 hours it will oscillate the idle when I start it.

Literally a perfect description. That's exactly my issue as well. If I leave work for lunch (around 5 hours after I shut it off) it'll happen. But no other time

TeinBMW · 07-23-2013, 11:14 PM

Quote:

Originally Posted by wwc310

Quote:

Originally Posted by 5tony

I've got this too on my '11 335i. Only does it when almost cold. If the car sits for more than 6 hours, it starts fine. If it sits 3-5 hours it will oscillate the idle when I start it.

Literally a perfect description. That's exactly my issue as well. If I leave work for lunch (around 5 hours after I shut it off) it'll happen. But no other time

I've been told by a bmw dealer that its the ecu software. It needs to be upgraded. Ill let u guys know when I get mine updated next week on how it is. But it's definitely the ecu software.

amtex · 11-08-2013, 03:26 PM

Quote:

Originally Posted by TeinBMW

I've been told by a bmw dealer that its the ecu software. It needs to be upgraded. Ill let u guys know when I get mine updated next week on how it is. But it's definitely the ecu software.

Have you fixed the problem? And if so, how?

TeinBMW · 11-08-2013, 10:01 PM

Quote:

Originally Posted by amtex

Quote:

Originally Posted by TeinBMW

I've been told by a bmw dealer that its the ecu software. It needs to be upgraded. Ill let u guys know when I get mine updated next week on how it is. But it's definitely the ecu software.

Have you fixed the problem? And if so, how?

Yup Ive fixed it. Just did the ecu updated and she's all good.

Meeni · 11-09-2013, 09:14 AM

It is normal for it doing it a little when cold. What you see is too much though.

For me a bottle of Techron fixed it (so dirty injectors or carbon buildup in cylinders). Bad coils or bad battery may also provoke this.

Mattshokri · 11-09-2013, 03:03 PM

do we ask the dealership to update out ECU? i brought my car in many times for this issue and had video proof on different occasions and the said they still cant do anything.

DASHOCKER · 11-09-2013, 05:06 PM

mine did this. I mentioned it to the dealer and the the culprit was the the low pressure fuel sensor. car starts and idles better than before now..

DASHOCKER · 11-09-2013, 05:06 PM

mine did this. I mentioned it to the dealer and the the culprit was the the low pressure fuel sensor. car starts and idles better than before now..

07-23-2013, 11:10 AM	#1
wwc310 First Lieutenant 52 Rep 393 Posts Drives: e92 LCI 335i Join Date: Nov 2012 Location: Miami iTrader: (1)	Rough cold start idle - normal? Can anyone tell me what the issue is here? Or is this normal? I am not touching the accelerator at all. The engine is revving on its own. Sorry for the A/C blowing in the background __________________ 2011 335i e92 JB4 Stage 2, VRSF chargepipe, VRSF downpipe, Hankook Ventus V12 evo2s
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07-23-2013, 11:16 AM	#2
Mposer New Member 0 Rep 10 Posts Drives: E90 328i Xdrive M-Sport Join Date: Apr 2013 Location: Chicago+West Burbs iTrader: (0)	Mine does the same thing. Been to the dealer 3-4 times, they can "never replicate" the issue. Some of the other posts on this say to try a fuel system cleaner. I have done it, "helped" for a little bit. Good luck, keep us posted if you figure it out.
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07-23-2013, 11:25 AM	#3
TeinBMW Lieutenant Colonel 133 Rep 1,945 Posts Drives: 2011 335xi Msport, Conv, Tech Join Date: May 2013 Location: Calgary iTrader: (2) Garage List 2011 BMW 335xi [7.00]	Ask for the new dme update. __________________ \|11 335XI N55 \| M SPORT \| VRSF CP \| BMW PE \| BMS INSTAKE \| VRSF 7" IC \| MHD STAGE 2+ \| ER CP \|
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07-23-2013, 11:46 AM	#5
krazysk8er Private 2 Rep 77 Posts Drives: 2010 328xi Sedan Join Date: May 2013 Location: SF Bay iTrader: (0)	my car just did that when i was in reverse gear though, gona take it in. such a long wait for loaner cars in NY area..
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07-23-2013, 12:07 PM	#7
TeinBMW Lieutenant Colonel 133 Rep 1,945 Posts Drives: 2011 335xi Msport, Conv, Tech Join Date: May 2013 Location: Calgary iTrader: (2) Garage List 2011 BMW 335xi [7.00]	Not sure which version. I've got a 2011 335xi and I know there are new updates out there the dealer told me. I'm booked in for the upgrade so hopefully that solves it. The last told me that she had it done in her 2011 335i and it solved all her probs. __________________ \|11 335XI N55 \| M SPORT \| VRSF CP \| BMW PE \| BMS INSTAKE \| VRSF 7" IC \| MHD STAGE 2+ \| ER CP \|
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07-23-2013, 12:08 PM	#8
TeinBMW Lieutenant Colonel 133 Rep 1,945 Posts Drives: 2011 335xi Msport, Conv, Tech Join Date: May 2013 Location: Calgary iTrader: (2) Garage List 2011 BMW 335xi [7.00]	Does any one know exactly which update I have to ask for when I take it in? __________________ \|11 335XI N55 \| M SPORT \| VRSF CP \| BMW PE \| BMS INSTAKE \| VRSF 7" IC \| MHD STAGE 2+ \| ER CP \|
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07-23-2013, 06:24 PM	#11
gibumee Private First Class 6 Rep 130 Posts Drives: 335i N55 PPK Join Date: Jun 2013 Location: Chicago, IL iTrader: (1)	I have the same issue. It happens more often when I have the AC on. I'm going in for a PPK install this weekend so I will see if they can find the cause and fix it.
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07-23-2013, 08:08 PM	#13
GarlicBread Brigadier General 165 Rep 560 Posts Drives: 17' M4 ZCP Join Date: Sep 2012 Location: New England iTrader: (1)	Definitely not normal fuel cleaner might help
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07-23-2013, 08:10 PM	#14
5tony Lieutenant 147 Rep 500 Posts Drives: '21 M5/'15 X5 35i/'88 M3 Join Date: Jul 2010 Location: Atlanta iTrader: (1)	I've got this too on my '11 335i. Only does it when almost cold. If the car sits for more than 6 hours, it starts fine. If it sits 3-5 hours it will oscillate the idle when I start it. __________________
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11-09-2013, 09:14 AM	#19
Meeni Gateropode 329 Rep 2,848 Posts Drives: BMW 330i 06 Join Date: Apr 2012 Location: TN iTrader: (0)	It is normal for it doing it a little when cold. What you see is too much though. For me a bottle of Techron fixed it (so dirty injectors or carbon buildup in cylinders). Bad coils or bad battery may also provoke this.
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11-09-2013, 03:03 PM	#20
Mattshokri Lieutenant 36 Rep 418 Posts Drives: 2011 328i space gray metallic Join Date: Apr 2012 Location: Los Angeles iTrader: (0)	do we ask the dealership to update out ECU? i brought my car in many times for this issue and had video proof on different occasions and the said they still cant do anything.
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11-09-2013, 05:06 PM	#21
DASHOCKER The power of V! 99 Rep 1,971 Posts Drives: 2007 335i coupe steptronic Join Date: Aug 2007 Location: NYC iTrader: (0) Garage List 1998 Lexus Gs400 [0.00] 2010 ebony & ivory [0.00] 2006 BMW X3 [0.00] 2009 pics [0.00] 2009 e92 335 xdrive [0.00]	mine did this. I mentioned it to the dealer and the the culprit was the the low pressure fuel sensor. car starts and idles better than before now.. __________________ 2007 335 coupe Alpine white, steptronic, sportpack, etc. (gone) 2006 X3 3.0 steptronic Titanium Silver, 2009 E92 335xdrive, next.... Caddy CTS_V! 13 Lincoln MKZ? hmmm.
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