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E90/E92/E93 M3 (2008 - 2014)
4th generation E90 M3 sedan, E92 M3 coupe and E93 M3 convertible. The last of the naturally aspirated M3s, powered by a 4.0 liter V8 making 414hp and 295 lb-ft of torque.

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  #1  
Old 04-10-2012, 02:58 PM
yinlee yinlee is offline
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DCT Issues

DCT owners, let me know if this has happen to you.

When I start out from a dead stop in 1st gear, the car engages and begins to go. Then, as I begin to step on the gas, there is a jerking that occurs. It's almost as if the car is stalling. It's somewhat like driving a manual and you're letting out on the clutch slowly then dumping it.

This has happen on numerous occasion and has gotten to a point to where I have no confidence in trying to launch. I'm going to call the dealer and take it in but wanted to get some thoughts.
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  #2  
Old 04-10-2012, 03:05 PM
ksoze ksoze is offline
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Quote:
Originally Posted by yinlee View Post
DCT owners, let me know if this has happen to you.

When I start out from a dead stop in 1st gear, the car engages and begins to go. Then, as I begin to step on the gas, there is a jerking that occurs. It's almost as if the car is stalling. It's somewhat like driving a manual and you're letting out on the clutch slowly then dumping it.

This has happen on numerous occasion and has gotten to a point to where I have no confidence in trying to launch. I'm going to call the dealer and take it in but wanted to get some thoughts.
What setting (D/S) and number are you set to when this occurs? Is the M button engaged? What are the M button settings if so?
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  #3  
Old 04-10-2012, 05:44 PM
yinlee yinlee is offline
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This happens on pretty much all settings.
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  #4  
Old 04-10-2012, 05:48 PM
ksoze ksoze is offline
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Not normal, have dealer take a look.
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  #5  
Old 04-11-2012, 11:54 AM
highyo highyo is offline
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traction control? are you stepping on it? or smooth take away?
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  #6  
Old 04-12-2012, 01:07 AM
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  #7  
Old 04-13-2012, 12:21 AM
chris19890101 chris19890101 is offline
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I have this happen to me a few times. I realized that i didn't give enough gas which caused the car to "stall"
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  #8  
Old 04-19-2012, 02:37 PM
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Kurt_OH Kurt_OH is offline
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There's definitely a "sweet spot" that you have to get to, to get the smoothest takeoff. Also, when the engine is cold, especially if it's near freezing out, it simply does not run well for about 30 seconds. It really is a pretty radical engine for a street car.

I believe that "dip" in power you're describing might be the moment when the clutch actually locks up. Still, it shouldn't almost die even at low throttle openings. I can slightly FEEL the full engagement, but other than when it's very cold I've never thought there was any chance it would actually stall.

However, Other than being a speck sluggish off the line if you uber baby it, I haven't noticed what you describe.

If you're still not sure whether to take it in, can you post ALL your settings? Is the POWER button usually on? What DSC setting is in effect? Approximately how much throttle are you giving it? Is it only when the engine is cold?
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  #9  
Old 04-19-2012, 10:09 PM
Jim in Oregon Jim in Oregon is offline
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It's called "Driver Induced Oscillations"...you are giving it gas, then taking your foot off the gas, then on again...and again. The car rocking back and forth helps make it worse. It was very common with the E46 M3's with SMG. When it happens, take your foot COMPLETELY off the gas or immediately shift...the motion will go away. I'm guessing you have Sport or sport+ mode engaged with the power button.

https://www.google.com/search?q=driv...8b538c23bb4e18
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  #10  
Old 04-20-2012, 05:15 PM
Drizz Drizz is offline
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I have this with my DCT and I've been told it's the clutch engaging and it totally normal. Most people don't even notice but I happen to be "hyper sensitive" and noticed it right away. I asked around the forums a few months ago when I got my car and most everyone said they didn't feel it. I since drove other DCT equipped cars and felt the exact same thing. I would say it's normal, if we're talking about the same thing.
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  #11  
Old 04-23-2012, 11:15 AM
yinlee yinlee is offline
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Quote:
Originally Posted by Kurt_OH View Post
There's definitely a "sweet spot" that you have to get to, to get the smoothest takeoff. Also, when the engine is cold, especially if it's near freezing out, it simply does not run well for about 30 seconds. It really is a pretty radical engine for a street car.

I believe that "dip" in power you're describing might be the moment when the clutch actually locks up. Still, it shouldn't almost die even at low throttle openings. I can slightly FEEL the full engagement, but other than when it's very cold I've never thought there was any chance it would actually stall.

However, Other than being a speck sluggish off the line if you uber baby it, I haven't noticed what you describe.

If you're still not sure whether to take it in, can you post ALL your settings? Is the POWER button usually on? What DSC setting is in effect? Approximately how much throttle are you giving it? Is it only when the engine is cold?
Thanks for the response. My setting is usually as follow: D4 or S4 and power is on. When I want spirited driving, M button setting is S5 and power is on. DTC is always on as I'm am no pro and definitely don't want the risk of spinning out.

On cold starts, I baby it until engine is warm.
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  #12  
Old 04-23-2012, 11:20 AM
yinlee yinlee is offline
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Quote:
Originally Posted by Drizz View Post
I have this with my DCT and I've been told it's the clutch engaging and it totally normal. Most people don't even notice but I happen to be "hyper sensitive" and noticed it right away. I asked around the forums a few months ago when I got my car and most everyone said they didn't feel it. I since drove other DCT equipped cars and felt the exact same thing. I would say it's normal, if we're talking about the same thing.
It sounds like it's the same thing. However, from what I have heard from others on this forum and on Bimmerpost, it's not normal. With my old 335i xDrive, this was not an issue at all. If I wanted to floor it, I didn't have to think whether the car would engaged or not. I know they're completely different cars and transmission. I'm setting up an appointment later this week to get it checked out and will report back to all.

Thanks,
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  #13  
Old 04-25-2012, 04:29 PM
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Kurt_OH Kurt_OH is offline
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Quote:
Originally Posted by yinlee View Post
Thanks for the response. My setting is usually as follow: D4 or S4 and power is on. When I want spirited driving, M button setting is S5 and power is on. DTC is always on as I'm am no pro and definitely don't want the risk of spinning out.

On cold starts, I baby it until engine is warm.
My default is D5 and S5. I can DEFINITELY get the "driver induced oscillations" described above, ESPECIALLY if the POWER button is on. But still, it's not anything like driving an automatic.

On a somewhat related note, I am SO happy I got DCT vs. manual. I like rowing my gears, but I'm ALWAYS playing with the DCT, switching gears and having fun. This engine is SO MUCH more peaky than my wife's 335i; my right arm would be 2x my left if I had a manual in this car. The DCT is the PERFECT compliment to the rev-happy nature of the S65.

I don't know any way to argue that the V8 + DCT M3 isn't the BEST ON THE PLANET all around car.
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Originally Posted by PhillyNate
I just love how a 4 year old car/design is STILL the benchmark which other automakers aspire to reach. Still winning comparisons . Still very much in the conversation. Is the E9x M3 a legend? You bet your @ss it is.
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Old 04-27-2012, 11:21 AM
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poleposition poleposition is offline
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There is a DCT recall which is corrected by an update to the DCT software. My car is at dealer right now for this. They contacted me to tell me.
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  #15  
Old 04-27-2012, 12:39 PM
ksoze ksoze is offline
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Quote:
Originally Posted by poleposition View Post
There is a DCT recall which is corrected by an update to the DCT software. My car is at dealer right now for this. They contacted me to tell me.
Had not heard of any recent DCT service issues or bulletins. Do you have any other info on this "recall"?
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Old 04-27-2012, 02:30 PM
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beden1 beden1 is offline
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Quote:
Originally Posted by ksoze View Post
Had not heard of any recent DCT service issues or bulletins. Do you have any other info on this "recall"?
The dealer did a software update last November on my April/2011 335is build with DCT. My car was in at the dealer for an inspection 2 weeks ago and there was no additional software tweaks performed for the DCT.
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Old 04-27-2012, 06:01 PM
yinlee yinlee is offline
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Took the car in and received a call today indicating my transmission fluid was low due to a bad gasket and that may have caused my issue. Unfortunately, they have to order the part from Germany and that will take a week. I haven't notice any fluids in the garage where the car is kept. Will post an update once car is back.
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Old 04-28-2012, 05:36 AM
ksoze ksoze is offline
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Thanks for he update - at least you confirmed the issue and have a resolution in play.
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  #19  
Old 04-29-2012, 03:43 AM
XXX555 XXX555 is offline
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Based on your comment regarding the lack of any fluids found leaked on the area you parked your M3, you seem less than confirmed/confident that the DCT issue is resolved. I hope it is but let us know.
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  #20  
Old 05-01-2012, 10:31 AM
yinlee yinlee is offline
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Originally Posted by XXX555 View Post
Based on your comment regarding the lack of any fluids found leaked on the area you parked your M3, you seem less than confirmed/confident that the DCT issue is resolved. I hope it is but let us know.
I'm somewhat concerned as the car is always park in the garage and have not noticed any fluid leakage since I got the it. Hopefully, this was the issue and by replacing it resolves the issue. I will know soon. Hope to get the car early next week and will provide a report.

Thanks,
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  #21  
Old 05-01-2012, 08:58 PM
Jim in Oregon Jim in Oregon is offline
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Try driving the car with the Power button OFF...the clutch will engage much slower and I'll bet it'll take off smoother. I hate the Power button as the throttle is no longer linear. 50% throttle position should give you 50% throttle. With the power button on (even worse on sport mode), 50% throttle position gives about 80% throttle. The car jumps and stutters at the slightest throttle position of the line. Try the power button off and see if your problem diminishes.

http://forum.roadfly.com/threads/609...d+oscillations

Last edited by Jim in Oregon; 05-01-2012 at 09:05 PM.
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  #22  
Old 05-10-2012, 05:12 PM
yinlee yinlee is offline
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Nothing to report. Part was supposed to be here but apparently it still being made and won't get here til next week. It's been two weeks and I am missing the car. My SA has been good but I'm getting frustrated on why it's taking so long.
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  #23  
Old 10-09-2012, 07:51 AM
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Not just DIO

While it's hard to hold a constant throttle with the thing jerking along, I'm pretty sure this is not purely driver-induced; having the driver's foot in the loop just enhances the dynamic.

For me it happens on any cold start less than 15C, only the first 2 or 3 shifts. This with no power and the default S3 setting. Does not happen if I dial in S1. I assume that the hydraulics are too cold to keep up with the computer: so it goes away when the actuator warms up a few degrees; or if you slow down the computer with the S1 setting.

Not fatal but annoying when the default comes up as S3, so you have to dial down and then restore after driving a few hundred yards.

Has anyone actually complained to the dealer? What is the company line on this?

Last edited by cdnM3; 10-09-2012 at 07:56 AM. Reason: more info
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  #24  
Old 10-09-2012, 08:46 PM
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stonemik stonemik is offline
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This was a bigger issue with SMG - my 03 was horrible some mornings. Thankfully, this has only happened once on my '11 M3 with DCT - usually when it's colder outside. I tried using the SMG trick and it works well. Just back off on the accelerator just a bit for a split second, and it stopped.
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