2011 128i manual acceleration issue

dravenport · 01-17-2017, 09:00 AM

Hello all,

I thought with the width and breadth of knowledge on this forum you lot may be able to help me diagnose an issue I started having a couple of days ago.

Basically whenever I go hard on the accelerator there's a hesitation, it almost feels like my rear wheels are spinning but the DTC light doesn't come on, there's no sound from the rear and it happens in every gear. The car shudders a bit as well when this happens. If I accelerate slowly, or probably what most would consider normally, it doesn't happen.

There are no warning lights at all and I just had a maintenance appointment at a BMW dealer in October, less than 1k km ago.

Any help and all opinions are appreciated!

Ric in RVA · 01-17-2017, 10:15 AM

Clutch slipping? That would trigger no DSC lights.

dravenport · 01-17-2017, 10:37 AM

Quote:

Originally Posted by Ric in RVA

Clutch slipping? That would trigger no DSC lights.

I thought this as well, but then it would only be during shifts wouldn't it? it'll do this pretty much anytime I put my foot to the floor

Ric in RVA · 01-17-2017, 01:43 PM

Quote:

Originally Posted by dravenport

I thought this as well, but then it would only be during shifts wouldn't it? it'll do this pretty much anytime I put my foot to the floor

Nope....if it is toast you can slip it once the torque you apply exceeds the torque it can handle.

run it in 3rd at 3000 and floor it. If it is slipping it would shoot RPM up without normal acceleration.

MightyMouseTech · 01-17-2017, 02:07 PM

If the clutch is slipping, the higher the gear, the worse it gets. Get on the highway, cruising in 6th, floor it. Does the RPM climb and not accelerate?

Also just noticed you bought your car at Import. Very random, that is two blocks from where I work.

dravenport · 01-17-2017, 03:00 PM

Quote:

Originally Posted by Ric in RVA

Nope....if it is toast you can slip it once the torque you apply exceeds the torque it can handle.

run it in 3rd at 3000 and floor it. If it is slipping it would shoot RPM up without normal acceleration.

I'll try this in a couple of days, my recollection from the weekend was that the RPMs didn't climb though

dravenport · 01-18-2017, 07:57 AM

Quote:

Originally Posted by MightyMouseTech

If the clutch is slipping, the higher the gear, the worse it gets. Get on the highway, cruising in 6th, floor it. Does the RPM climb and not accelerate?

Also just noticed you bought your car at Import. Very random, that is two blocks from where I work.

super random! Hello fellow O-Town bmw fan. all of this testing was done on Innes and the 417 lol

mackeroni · 01-20-2017, 03:37 PM

It's the clutch. Can't think of another cause for this behavior.

Peace

01-17-2017, 09:00 AM	#1
dravenport New Member 9 Rep 18 Posts Drives: 2011 128i Join Date: Sep 2015 Location: Ottawa iTrader: (0)	2011 128i manual acceleration issue Hello all, I thought with the width and breadth of knowledge on this forum you lot may be able to help me diagnose an issue I started having a couple of days ago. Basically whenever I go hard on the accelerator there's a hesitation, it almost feels like my rear wheels are spinning but the DTC light doesn't come on, there's no sound from the rear and it happens in every gear. The car shudders a bit as well when this happens. If I accelerate slowly, or probably what most would consider normally, it doesn't happen. There are no warning lights at all and I just had a maintenance appointment at a BMW dealer in October, less than 1k km ago. Any help and all opinions are appreciated!
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01-17-2017, 10:15 AM	#2
Ric in RVA Bergspyder 1469 Rep 1,212 Posts Drives: '11 BMW 128i Sport 6mt Join Date: Oct 2015 Location: Richmond VA iTrader: (1)	Clutch slipping? That would trigger no DSC lights. __________________ Ric in RVA 2011 128i 6 MT Sport, 2009 Cayman 987.2, 2011 528i N52, 2018 F150 Platinum
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01-17-2017, 02:07 PM	#5
MightyMouseTech Major General 4338 Rep 6,196 Posts Drives: 13 135i 6MT LeMans Blue MSport Join Date: Feb 2013 Location: Ottawa, Canada iTrader: (0)	If the clutch is slipping, the higher the gear, the worse it gets. Get on the highway, cruising in 6th, floor it. Does the RPM climb and not accelerate? Also just noticed you bought your car at Import. Very random, that is two blocks from where I work.
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01-20-2017, 03:37 PM	#8
mackeroni Former Opel GT Pilot 327 Rep 771 Posts Drives: 2011 135i, AW, CR, 6MT Join Date: Dec 2010 Location: Canton, OH USA iTrader: (0)	It's the clutch. Can't think of another cause for this behavior. Peace __________________ So, that's it. I am doomed. There is no patch, no methadone, no substitute. Curse you BMW. Curse you and your seamless power delivery. Curse the incredible sense of road feel. Curse the comfort, the luxury, the envious looks from the masses. I am... hopelessly addicted.
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