Rough Idle and harsh vibration

Jamrockbwoy · 12-03-2014, 08:32 AM

This past weekend I drove from NY to Maryland and the car ran great but I think I may have drove it too hard. Yesterday morning out of nowhere the service engine soon light came on and the car started to idle rough and vibrate harshly when accelerating.

I ran a fault code check on it and got code 0029D2 from BMWhat app

Car is a 2010 328i x Drive currently has 51k on it.

Rough Idle and harsh vibration (stuttering) when Accelerating

A friend of mine told me he had the same issue and it was his throttle body.
any ideas would be helpful

Dyeraudio · 12-03-2014, 08:47 AM

I had the same issue last month....Misfire in Cyl. 1 I replaced all 6 plugs and coils......

PichaDis11 · 12-03-2014, 08:47 AM

Looks you have a misfire my friend. Did this reset after the next startup or is the SES light still on?

Jamrockbwoy · 12-03-2014, 09:33 AM

Quote:

Originally Posted by PichaDis11

Looks you have a misfire my friend. Did this reset after the next startup or is the SES light still on?

I cleared the code but it came back and so did the SES light.

Jamrockbwoy · 12-03-2014, 09:34 AM

Quote:

Originally Posted by Dyeraudio

I had the same issue last month....Misfire in Cyl. 1 I replaced all 6 plugs and coils......

ok thanks for the input. I'm gonna try that.

PichaDis11 · 12-03-2014, 10:28 AM

Quote:

Originally Posted by Jamrockbwoy

Quote:

Originally Posted by PichaDis11

Looks you have a misfire my friend. Did this reset after the next startup or is the SES light still on?

I cleared the code but it came back and so did the SES light.

Ok. Since your misfire is persistent then you can check to see if it's the coil that is causing the issue. Exchange the coil with another and if the code travels to that cylinder then it's a def that the coil is faulty. If that doesn't work then you move on to the plugs.

Jamrockbwoy · 12-03-2014, 10:49 AM

Quote:

Originally Posted by PichaDis11

Ok. Since your misfire is persistent then you can check to see if it's the coil that is causing the issue. Exchange the coil with another and if the code travels to that cylinder then it's a def that the coil is faulty. If that doesn't work then you move on to the plugs.

thanks man i'm gonna try that

Jamrockbwoy · 12-18-2014, 06:35 AM

issue was caused by 2 faulty coils. replaced by dealer thru warranty. thanks for he input guys.

Mr_SDP · 02-27-2016, 10:19 AM

Had the same/similar issue and used the CarlyForBMW App (formerly BMW What App) to diagnose. I changed all 6 spark plugs and coils. Such an easy job and now my car runs perfectly. I have a 2006 e90 with 60k miles. A bit surprised this happened but was only a $200 fix, compared to triple that or more if I took it to the dealer.

12-03-2014, 08:32 AM	#1
Jamrockbwoy Lieutenant 31 Rep 402 Posts Drives: 2015 550i xDrive Join Date: May 2014 Location: Long Island NY & New Rochelle, NY iTrader: (1)	Rough Idle and harsh vibration This past weekend I drove from NY to Maryland and the car ran great but I think I may have drove it too hard. Yesterday morning out of nowhere the service engine soon light came on and the car started to idle rough and vibrate harshly when accelerating. I ran a fault code check on it and got code 0029D2 from BMWhat app Car is a 2010 328i x Drive currently has 51k on it. Rough Idle and harsh vibration (stuttering) when Accelerating A friend of mine told me he had the same issue and it was his throttle body. any ideas would be helpful __________________ Instagram @_gr8dane 2015 550xi - current 2015 428xi - retired 2010 328xi LCI retired
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12-03-2014, 08:47 AM	#2
Dyeraudio Second Lieutenant 110 Rep 217 Posts Drives: 2018 330i M Sport Join Date: Jun 2014 Location: Midwest iTrader: (1) Garage List 2018 BMW 330i xDrive [0.00]	I had the same issue last month....Misfire in Cyl. 1 I replaced all 6 plugs and coils......
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12-03-2014, 08:47 AM	#3
PichaDis11 Colonel 295 Rep 2,202 Posts Drives: E90 N52 Join Date: Mar 2013 Location: NY iTrader: (3)	Looks you have a misfire my friend. Did this reset after the next startup or is the SES light still on? __________________ Retrofits: 322, 609, 6FL, 6NR, 6VC, 2TB.. Upgrades: Bilstein B8 Eibach Spring kit
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12-18-2014, 06:35 AM	#8
Jamrockbwoy Lieutenant 31 Rep 402 Posts Drives: 2015 550i xDrive Join Date: May 2014 Location: Long Island NY & New Rochelle, NY iTrader: (1)	issue was caused by 2 faulty coils. replaced by dealer thru warranty. thanks for he input guys. __________________ Instagram @_gr8dane 2015 550xi - current 2015 428xi - retired 2010 328xi LCI retired
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02-27-2016, 10:19 AM	#9
Mr_SDP Private 9 Rep 55 Posts Drives: 2012 335i F30 Sedan Manual Join Date: Feb 2013 Location: Texas, United States iTrader: (0)	Had the same/similar issue and used the CarlyForBMW App (formerly BMW What App) to diagnose. I changed all 6 spark plugs and coils. Such an easy job and now my car runs perfectly. I have a 2006 e90 with 60k miles. A bit surprised this happened but was only a $200 fix, compared to triple that or more if I took it to the dealer.
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