Jerking while accelerating in 1st, 6MT

go2sleepe · 09-29-2010, 04:45 PM

Newbie here. I have searched this topic and found many threads but none quite like the problem I am having.
I have '07 335i E90 6MT, 28k miles. Only about 5% of the time it jerks pretty significantly through first gear. Occasionally it will happen early in 2nd as well. I definitely am not babying the clutch as I have made sure to have completely released it and still have this problem. It's not reproducible and occurs at random. My warranty is up in Jan '11 so I would like to know if there is a problem to get fixed. Please help. Thanks in advance.

Yay-Z · 09-29-2010, 05:01 PM

Chill out on the freaky stuff man, this forum is read by under 18s

ForTheD · 09-29-2010, 05:03 PM

I won't be much help to you, other then this happens to me some times.
I think this is what happens if you do not give enough gas, when giving too much clutch. I think it is because the type of clutch used. Maybe they needed a bit more heavy duty then normal clutch in the 335i due to power?

In my hold honda I and this "racing clutch" and I could not go under 25 with out it jerking the shit outa me. The clutch was great to get off the line, but you could not safely drive through a neighborhood.

ForTheD · 09-29-2010, 05:04 PM

Quote:

Originally Posted by Yay-Z

Chill out on the freaky stuff man, this forum is read by under 18s

? I don't get it.

sam2428 · 09-29-2010, 05:06 PM

Quote:

Originally Posted by ForTheD

? I don't get it.

loll

read the thread title again

username604 · 09-29-2010, 05:09 PM

Quote:

Originally Posted by ForTheD

? I don't get it.

me neither. maybe he edited the original post

ForTheD · 09-29-2010, 05:10 PM

Quote:

Originally Posted by sam2428

loll

read the thread title again

ha ha, thats funny!

go2sleepe · 09-29-2010, 05:20 PM

Quote:

Originally Posted by ForTheD

I won't be much help to you, other then this happens to me some times.
I think this is what happens if you do not give enough gas, when giving too much clutch. I think it is because the type of clutch used. Maybe they needed a bit more heavy duty then normal clutch in the 335i due to power?

In my hold honda I and this "racing clutch" and I could not go under 25 with out it jerking the shit outa me. The clutch was great to get off the line, but you could not safely drive through a neighborhood.

That is what I thought initially but when i start to feel the jerk i actually give it more gas and it still jerks through the gear. Thanks for the quick response. Anyone else?

go2sleepe · 09-29-2010, 05:22 PM

Quote:

Originally Posted by sam2428

loll

read the thread title again

Ya gotta come up with a title that will grab the reader's attention

spiike32 · 09-29-2010, 05:22 PM

Feather the clutch more and give a lil more gas. When I first started to drive my 6mt it was quite jerky. Let off the clutch slower and let it slightly slip as you give it gas will make it smooth from 0 to 20. Also most people let off slow then drop it in... this causes rough acceleration as well. It's all in how you feather the clutch.

RedDinan335i · 09-29-2010, 05:28 PM

Quote:

Originally Posted by go2sleepe

That is what I thought initially but when i start to feel the jerk i actually give it more gas and it still jerks through the gear. Thanks for the quick response. Anyone else?

My wife actually does this all the time in my car. Too little gas and too much clutch is the issue. You just need to practice more. In other words you let the cluth out fully and are then starting to lay into the gas...it starts bucking...you give more gas...it just gets worse LOL!!!
Try this. Work the cluth as you normally do and ease into the throttle. You shouldn't get any bucking. Similarly if you want a more aggressive take off more throttle earlier in the clutch release. Again practice.

go2sleepe · 09-29-2010, 05:37 PM

Quote:

Originally Posted by RedDinan335i

My wife actually does this all the time in my car. Too little gas and too much clutch is the issue. You just need to practice more. In other words you let the cluth out fully and are then starting to lay into the gas...it starts bucking...you give more gas...it just gets worse LOL!!!
Try this. Work the cluth as you normally do and ease into the throttle. You shouldn't get any bucking. Similarly if you want a more aggressive take off more throttle earlier in the clutch release. Again practice.

Yeah that is exactly what it sounds like, but when I start to feel it i make sure to completely release the clutch and give it more gas. For some reason it will still jerk through the gear. Then it won't happen for a week. I sure hope it is operator error but I fear it is something else. It's been happening for months but I'm just now posting b/c I thought it was me for so long. Def not babying the clutch. Thanks for the replies everyone.

Schm · 09-29-2010, 06:07 PM

The clutch in the e90 is really long, you've got to learn to release it slowly. I had the same problem when I first began driving this car (Also my first MT car)

1Sleeper · 09-29-2010, 06:07 PM

Search E90 for CDV. Nasty little device needs to be "fixed".

RedDinan335i · 09-29-2010, 06:13 PM

Quote:

Originally Posted by go2sleepe

Yeah that is exactly what it sounds like, but when I start to feel it i make sure to completely release the clutch and give it more gas. For some reason it will still jerk through the gear. Then it won't happen for a week. I sure hope it is operator error but I fear it is something else. It's been happening for months but I'm just now posting b/c I thought it was me for so long. Def not babying the clutch. Thanks for the replies everyone.

The point is if you start to feel it, fully release the clutch and give more gas...you're making it worse. You should have slipped the clutch more prior to feeling it. In fact on a level surface you shouldn't have to give it any gas at all. Does it buck when you fully release on a level surface without using the gas?

hmmcolor · 09-29-2010, 06:17 PM

Same issue here, but I'm quite sure when it happens it's my own damn fault. Touchy clutch, yes, but still user error.

Tom K. · 09-29-2010, 06:19 PM

If it is intermittently happening after the clutch is fully engaged (pedal released) in both 1st and 2nd, then it sounds like it may be an engine management problem. Are you getting a check engine light?

Hopefully, your dealer will be able to duplicate the problem.

Tom

RedDinan335i · 09-29-2010, 06:27 PM

I'm more inclined to believe the engine management problem is behind the wheel

no disrespect, but with lots of torque 6MT is not the easiest to drive. You can't just be good in a civic and expect to do well with our cars.

gill_ · 09-29-2010, 06:38 PM

this happens when the clutch is almost fully grabbed but you aren't giving it enough gas

RedDinan335i · 09-29-2010, 06:47 PM

Quote:

Originally Posted by gill_

this happens when the clutch is almost fully grabbed but you aren't giving it enough gas

Exactly. And giving more gas once it has grabbed in this situation makes it buck. I think this is the mistake the OP is making.

3Coupe4Me · 09-29-2010, 10:13 PM

CDV problem. I'm absolutely convinced that the random clutch behavior is CDV related.

spiike32 · 09-29-2010, 10:27 PM

I have my cdv and if I blind folded you as a passenger, you'd think I drive an automatic... it's the driver...

SSK, shorter shifter, CDV delete, tranny fluid types (e.g. GM syncromesh), and other hardware will not help until you master how to drive manual.

09-29-2010, 04:45 PM	#1
go2sleepe New Member 5 Rep 26 Posts Drives: 335i Join Date: Mar 2010 Location: South Florida iTrader: (0)	Jerking while accelerating in 1st, 6MT Newbie here. I have searched this topic and found many threads but none quite like the problem I am having. I have '07 335i E90 6MT, 28k miles. Only about 5% of the time it jerks pretty significantly through first gear. Occasionally it will happen early in 2nd as well. I definitely am not babying the clutch as I have made sure to have completely released it and still have this problem. It's not reproducible and occurs at random. My warranty is up in Jan '11 so I would like to know if there is a problem to get fixed. Please help. Thanks in advance.
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09-29-2010, 05:01 PM	#2
Yay-Z Shifting to Top Gear 40 Rep 556 Posts Drives: F10 M5/E70 X5 Join Date: Mar 2010 Location: Houston, TX iTrader: (0)	Chill out on the freaky stuff man, this forum is read by under 18s
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09-29-2010, 05:03 PM	#3
ForTheD Second Lieutenant 19 Rep 251 Posts Drives: 2007 e90 335i 6MT (ZSP) Join Date: Aug 2010 Location: Salem, OR iTrader: (0) Garage List 2007 BMW 335i [0.00]	I won't be much help to you, other then this happens to me some times. I think this is what happens if you do not give enough gas, when giving too much clutch. I think it is because the type of clutch used. Maybe they needed a bit more heavy duty then normal clutch in the 335i due to power? In my hold honda I and this "racing clutch" and I could not go under 25 with out it jerking the shit outa me. The clutch was great to get off the line, but you could not safely drive through a neighborhood.
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09-29-2010, 05:22 PM	#10
spiike32 Major 78 Rep 1,127 Posts Drives: Mineral White F80 M3 Join Date: Apr 2009 Location: IL iTrader: (9)	Feather the clutch more and give a lil more gas. When I first started to drive my 6mt it was quite jerky. Let off the clutch slower and let it slightly slip as you give it gas will make it smooth from 0 to 20. Also most people let off slow then drop it in... this causes rough acceleration as well. It's all in how you feather the clutch. __________________ Current: Tesla Model 3 Performance Retired: F80 M3, FBO 335i, 318ti, C7 Stingray
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09-29-2010, 06:07 PM	#13
Schm Colonel 164 Rep 2,731 Posts Drives: e90 330i Join Date: Jan 2009 Location: Missouri iTrader: (3)	The clutch in the e90 is really long, you've got to learn to release it slowly. I had the same problem when I first began driving this car (Also my first MT car) __________________ 2006 E90 330i.
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09-29-2010, 06:07 PM	#14
1Sleeper First Lieutenant 6 Rep 384 Posts Drives: F31 Join Date: Jun 2009 Location: Where I need to be iTrader: (1)	Search E90 for CDV. Nasty little device needs to be "fixed".
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09-29-2010, 06:17 PM	#16
hmmcolor Second Lieutenant 2 Rep 259 Posts Drives: E90 335i 6MT Join Date: Aug 2010 Location: Boston iTrader: (0)	Same issue here, but I'm quite sure when it happens it's my own damn fault. Touchy clutch, yes, but still user error. __________________ 2000 Dodge Dakota 4.7 2007 335i 6MT
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09-29-2010, 06:19 PM	#17
Tom K. Major General 124 Rep 5,627 Posts Drives: '07 328iT, '13 Boxster Join Date: Mar 2008 Location: Maryland iTrader: (0)	If it is intermittently happening after the clutch is fully engaged (pedal released) in both 1st and 2nd, then it sounds like it may be an engine management problem. Are you getting a check engine light? Hopefully, your dealer will be able to duplicate the problem. Tom
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09-29-2010, 06:27 PM	#18
RedDinan335i Private First Class 1 Rep 102 Posts Drives: Red 335i Coupe Join Date: Feb 2009 Location: St. Louis iTrader: (1)	I'm more inclined to believe the engine management problem is behind the wheel no disrespect, but with lots of torque 6MT is not the easiest to drive. You can't just be good in a civic and expect to do well with our cars. __________________ Mods: Dinan Stage2 Dinan Exhaust
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09-29-2010, 06:38 PM	#19
gill_ Banned 17 Rep 128 Posts Drives: AW e92 Join Date: Aug 2010 Location: NY iTrader: (0)	this happens when the clutch is almost fully grabbed but you aren't giving it enough gas
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09-29-2010, 10:13 PM	#21
3Coupe4Me Private First Class 81 Rep 177 Posts Drives: 2007 328i Coupe Join Date: Aug 2010 Location: S.FL iTrader: (1)	CDV problem. I'm absolutely convinced that the random clutch behavior is CDV related. __________________ ------------------------------------------------------- -------------------------------------------------------
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09-29-2010, 10:27 PM	#22
spiike32 Major 78 Rep 1,127 Posts Drives: Mineral White F80 M3 Join Date: Apr 2009 Location: IL iTrader: (9)	I have my cdv and if I blind folded you as a passenger, you'd think I drive an automatic... it's the driver... SSK, shorter shifter, CDV delete, tranny fluid types (e.g. GM syncromesh), and other hardware will not help until you master how to drive manual. __________________ Current: Tesla Model 3 Performance Retired: F80 M3, FBO 335i, 318ti, C7 Stingray
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