[Alarbus]

Maybe get it checked for vacuum leaks when warm? A hose could be expanding slightly once it's warm, and I guess the symptoms sound similar to a vacuum leak. Might need a shop to do that though, I have no idea how to smoke test a car.

[Bangarang_Rufio]

Originally Posted by Alarbus

Maybe get it checked for vacuum leaks when warm? A hose could be expanding slightly once it's warm, and I guess the symptoms sound similar to a vacuum leak. Might need a shop to do that though, I have no idea how to smoke test a car.

Thanks, that's something I haven't thought of yet. It makes sense that it could be a possibility.

[Afernandezsalas]

Hey guys, what is the resolution on this issue? I am having the same issue and I replaced all ignition coils and spark plugs thinking it was that!

[ajfb004]

I’ve got it at 1700 rpms while barely pressing throttle. It’s really mild but I’m curious what is causing it too. Only between 2nd and 3rd gear

[Gunslinger1971]

Im having a similar issue with my 2008 328xi that is around 78,000 miles. Im getting a misfire code at the #5 cylinder. Pretty sure mine is a coil. Going to replace coils and plugs probably next weekend.

I now you said you already did this. Did you notice any oil down around your plugs indicating bad valve cover gasket? I believe I read this can cause misfires also.

Mine started out as slight misfire under a slight load under 2000rpms. Gradually gotten worse until it finally threw an SES and completely dropped a cylinder until I turned off the car and restarted. If I drive carefully its OK but can repeat the failure pretty easily now.

[kickserve]

well, here's my contribution:

my '12 e91 xdrive developed the noticeable stuttering/shaking when accelerating between an RPM of 1200-2000 similar what the OP was describing. It was preceded by a rough idle with the bouncing rpm (600-700) and stuttering/jerking (without a SESL). It took a few days before the SESL came on. Took it to the dealer since I'm in my last few months of CPO. Cylinder 6 was the culprit and all 6 coils + plugs got replaced under warranty. Along with that, my SA recommended getting the fuel induction service (BG fuel induction + GDI intake service) to (paraphrasing here) clean out all the stuff that led to this notorious problem. From what I gather, I probably could have DIYd this... next time I guess. So far so good. Fingers crossed that this does the trick. Hope this helps somebody... anybody.

[jpericao]

Had same issues, and after checking Spark plugs, coild, maf, Vanos.

I finally changed the oil of the transmission and vibration is gone.
2009 x5 3.0

[Psydwaze]

I believe I am having the same issue. Odd and strong vibration that occurs anywhere from start up to fully warmed up. Vibration can be felt and heard in car. It ramps up slowly similar to an electric motor coming up to speed. It is not related to engine rpm or whether the car is sitting stationary or moving forward in drive up to a few miles per hour (as I have experienced). Only lasted about 5 to 15 seconds and vibration faded out about the same rate as it started up. Revving the engine from idle to about 2500 rpm did not have any affect on the vibration. Turing off the A/C (fan motor) had no affect on vibration. Does not occur every time the car is driven. Seems to be random and unrelated to the drivetrain.

VANOS - Wouldn't the frequency of this vibration be directly tied to engine RPM?
GUIBO - This would not cause vibration while stationary.

Are there any motors (possibly electrical) that would be heavy enough to cause this type of a vibration?

[NFiftyWon]

Motor mounts?
Cats? Is Bank 1 o2 sensor throwing a code?
Dirty MAF?

[ValveslapAdjustment]

A small amount of unmetered air will cause noticeable roughness and/driveability problems at lower RPMs. As engine speed and load increase, unmetered air has a less noticeable effect because: A) the engine is rotating faster and vibration is less noticeable; and B) because the higher fuel:air mixture is less affected by the small amount of unmetered air. If I were you, I would recreate the condition and record live data on fuel trims, oxygen sensors, timing advance, air flow, fuel injector flow rate and/or duty cycle, engine speed, engine load, and throttle position. I usually use Torque Pro and tease apart the data.

I'm wondering if the transmission fluid just needs changed and is causing the TC to slip a bit. I've read the GM transmission in the XI models can have slippage that is fixed with new fluid.

[Psydwaze]

Originally Posted by ValveslapAdjustment

I'm wondering if the transmission fluid just needs changed and is causing the TC to slip a bit.

Could this potentially cause vibration when parked? Vibration is still there whether sitting still or low speed driving.

[ValveslapAdjustment]

Originally Posted by Psydwaze

Could this potentially cause vibration when parked? Vibration is still there whether sitting still or low speed driving.

It could, I suppose, as the TC is disengaged from the PP but still experiences a bit of rotational force from the PP. I would think, though, that a change in engine RPM would result in a direct change in the vibration.

[Saico]

Torque Converter might be a problem here. I have a similar issue when the car is warming up and Im pretty sure it’s TC (everything else was checked/replaced)

[bcmfla]

Originally Posted by ValveslapAdjustment

A small amount of unmetered air will cause noticeable roughness and/driveability problems at lower RPMs. As engine speed and load increase, unmetered air has a less noticeable effect because: A) the engine is rotating faster and vibration is less noticeable; and B) because the higher fuel:air mixture is less affected by the small amount of unmetered air. If I were you, I would recreate the condition and record live data on fuel trims, oxygen sensors, timing advance, air flow, fuel injector flow rate and/or duty cycle, engine speed, engine load, and throttle position. I usually use Torque Pro and tease apart the data.

I'm wondering if the transmission fluid just needs changed and is causing the TC to slip a bit. I've read the GM transmission in the XI models can have slippage that is fixed with new fluid.

I had something similar and changed the fluid twice and it final went away. There was a factory bulletin and I believe it was related to the GM transmission and not the ZF. In any event my car had really low miles and the trans fluid basically lost its properties. I used dr. Shudder in the initial change and went about 4000 miles and changed it again.

With the second change I ran a sample with Blackstone and got a clean report. The vibration hasn't returned.

[runnr548]

Awaken older thread! Just recently developed the 2000rpm shudder on our 2009 328i with about 154,000 miles. I'm going to try a transmission fluid and filter and see if that fixes it.

[Juanes0911]

Originally Posted by runnr548

Awaken older thread! Just recently developed the 2000rpm shudder on our 2009 328i with about 154,000 miles. I'm going to try a transmission fluid and filter and see if that fixes it.

Hey do you or anyone else here know what it actually is? Did OP ever fix their car? I started having the same issue a few weeks ago and so far I have changed all plugs and coils, cleaned VANOS, replaced both DISA valves, changed engine oil, cleaned MAF sensor, checked the vvt motor and replaced gasket, looked for Vacuum leaks and Oil leaks and everything is good, the car is no CEL codes and no BMW specific phantom codes either. I’m lost now not sure where to go next. For reference my car is a 2010 328i Xdrive 6-speed manual.

[runnr548]

After the transmission service the issue disappeared on the 2009. :-)

[POBEP]

subscribed.

I have this issue for 7 years and have not found the root cause.

[sting-like-a-bimmer]

I have this exact issue in 2024. I just did a lot of work on my car. Let’s start at the very beginning. About 4 months ago I noticed this issue about the car shuddering like crazy when trying to accelerate hard. Then after a bit I started getting a periodic cylinder 5 misfire code. It was a bad coil pack. Replaced it and now it’s good. What I noticed recently was a significant loss of power in the car. Just a couple of days ago I got the trifecta code of DSC ABS and Traction control and the car was dying for a brief period. I shut her off, started her up, all was good. Now i’m getting the severe vibrations at lower rpm’s. The car just isn’t fun to drive. I unplugged the Transfer Case and still the issue persists. Now for the time being I have no codes or anything so I’m thinking if I should just try to replace all the coil packs and then go from there. I’m completely lost.

Also have noticed that the N52 tends to have periods of significant power loss. Just sometimes feels very heavy when driving. Idk if you guys have noticed this too.

PSA, I did curb my car in beautiful fashion just 3 weeks ago destroying both upper and lower control arms but have had all bad parts since replaced. Wheels are all balanced, haven’t gotten an alignment yet though, but alignment issues have never presented me this issue.

Any help is greatly appreciated.

2011 BMW 328i XDrive Automatic Transmission

[G35POPPEDMYCHERRY]

guys a vaccum leak, bad plugs and coil, vanos solenoids, bad fuel, bad fuel pump etc can all cause rough engine go to a mecachnic