'05 330i hesitation and uneven idle

Sajmik · 03-05-2015, 05:18 PM

Hi all,

I recently bought this car and in past few days I started noticing uneven idle. RPM´s are changing from about 550 to 650 every Half a second(right after cold start, when RPM´s are higher, idling seems smooth).

Then it is also hard to take of smoothly in first gear and when changing lower gears in lower RPM´s car jerks most of the time.

And also the hesitation under WOT, part -throttle or off throttle in low RPM´s. When I mash the throttle at low RPM´s in higher gear(4,5,6) car accelerates, then usually around 1500 RPM´s hesitates/jerks and then everything is fine up to redline.

I can make some videos, if that can help

After what I have red, I am thinking that it might be coils?

Thank you in advance and sorry for my english, I am not a native speaker

Three_thirty_I · 03-05-2015, 08:10 PM

If you can make a vid that would be good.

Sajmik · 03-07-2015, 05:54 AM

i will try to do it today

Sajmik · 03-07-2015, 02:04 PM

here is idling video

it is not fluctuating as much as thought it is..
also hesitation when getting of is kinda hard to capture, so I will try to capture WOT hesitation at low rpm's

03-05-2015, 05:18 PM	#1
Sajmik New Member 6 Rep 25 Posts Drives: . Join Date: Sep 2014 Location: Prague iTrader: (0)	'05 330i hesitation and uneven idle Hi all, I recently bought this car and in past few days I started noticing uneven idle. RPM´s are changing from about 550 to 650 every Half a second(right after cold start, when RPM´s are higher, idling seems smooth). Then it is also hard to take of smoothly in first gear and when changing lower gears in lower RPM´s car jerks most of the time. And also the hesitation under WOT, part -throttle or off throttle in low RPM´s. When I mash the throttle at low RPM´s in higher gear(4,5,6) car accelerates, then usually around 1500 RPM´s hesitates/jerks and then everything is fine up to redline. I can make some videos, if that can help After what I have red, I am thinking that it might be coils? Thank you in advance and sorry for my english, I am not a native speaker
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03-05-2015, 08:10 PM	#2
Three_thirty_I Lieutenant Colonel 378 Rep 1,928 Posts Drives: 2010 BMW E90 330i M Sport Join Date: Aug 2010 Location: Cape Town, South Africa iTrader: (0) Garage List 2010 BMW E90 330i M ... [9.63]	If you can make a vid that would be good. __________________ 2010 BMW E90 330i M Sport (M) Ex: BMW E90 330i (M) '05 (His) \| (Hers) BMW E46 320i f/l (M) '03
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03-07-2015, 05:54 AM	#3
Sajmik New Member 6 Rep 25 Posts Drives: . Join Date: Sep 2014 Location: Prague iTrader: (0)	i will try to do it today
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03-07-2015, 02:04 PM	#4
Sajmik New Member 6 Rep 25 Posts Drives: . Join Date: Sep 2014 Location: Prague iTrader: (0)	here is idling video it is not fluctuating as much as thought it is.. also hesitation when getting of is kinda hard to capture, so I will try to capture WOT hesitation at low rpm's
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