UPDATE - SMG Clutch Slip

**RaceMX-M3** · Sat, Nov-04-2006, 09:36:02 PM

Here is a link to the original post http://www.m3forum.net/m3forum/showt...ght=smg+clutch

When I take off from a dead stop (normal acceleration not standing on it) *sometimes* the power to the wheels stutters a little like the clutch is slipping or engaging/disengaging rapidly for about 1 second. not major but enough to notice something is not right. It is a periodic thing as these things tend to go but it has been happening for quite a while. I am not referring to the SMG buck that tries to give you whiplash - this is very subtle.

I mentioned this to the dealer about a year ago and they could find nothing wrong. Recently the problem has become more frequent so I went back to the dealer this week and had someone ride with me so I could demonstrate this to them and get acknowledgement that the problem indeed existed. So we drive the car, a few stops/starts and bingo the clutch does it's thing. My car was due for a SMG software update/recall/whatever so they tell me that will probably fix it. Next day SA calls: after the software update the SMG light illuminates and they can't get it to go off. BMW asks them to disassemble clutch and flywheel for inspection. SA calls back following day to inform me BMW has decided to replace the clutch and SMG unit as remedy. I will be happy to post further details after I pick up the car up next week and get a more thorough explaination from the SA.

TUNEDM3 · Sat, Nov-04-2006, 09:42:58 PM

My friend had the same issue on his car...replaced the clutch, flywheel and updated the software and the car has never shifted harder. Its like a new car altogether.

avo8686 · Sat, Nov-04-2006, 11:03:39 PM

Did they replaced all of this under warranty?

matyoka · Sun, Nov-05-2006, 12:05:04 AM

Wow, hopefully I can pursuade my BMW dealer to do the same. Tonight I felt it for the first time. I had my 240 lbs brother in the car and I was driving it pretty hard. At the shift between 3 and 4, I felt a slip in the clutch through the gas pedal. Made me wonder what it was and it did it again after backshifting to 3, than again driving it somewhat hard. I read about this extra weight in the car issue before, but a $60k car should not do that at all.

**RaceMX-M3** · Sun, Nov-05-2006, 06:08:17 PM

Quote:

Originally Posted by avo8686

Did they replaced all of this under warranty?

yes under warranty

Sat, Nov-04-2006, 09:36:02 PM	#1
RaceMX-M3 Scott@Radar-Mirror.com Join Date: Jan 2005 Posts: 2,899 Reputation: 0 Location: Dallas	UPDATE - SMG Clutch Slip Here is a link to the original post http://www.m3forum.net/m3forum/showt...ght=smg+clutch When I take off from a dead stop (normal acceleration not standing on it) sometimes the power to the wheels stutters a little like the clutch is slipping or engaging/disengaging rapidly for about 1 second. not major but enough to notice something is not right. It is a periodic thing as these things tend to go but it has been happening for quite a while. I am not referring to the SMG buck that tries to give you whiplash - this is very subtle. I mentioned this to the dealer about a year ago and they could find nothing wrong. Recently the problem has become more frequent so I went back to the dealer this week and had someone ride with me so I could demonstrate this to them and get acknowledgement that the problem indeed existed. So we drive the car, a few stops/starts and bingo the clutch does it's thing. My car was due for a SMG software update/recall/whatever so they tell me that will probably fix it. Next day SA calls: after the software update the SMG light illuminates and they can't get it to go off. BMW asks them to disassemble clutch and flywheel for inspection. SA calls back following day to inform me BMW has decided to replace the clutch and SMG unit as remedy. I will be happy to post further details after I pick up the car up next week and get a more thorough explaination from the SA. __________________ CLICK HERE FOR BMW REAR VIEW MIRROR REPAIR www.Radar-Mirror.com Scott@Radar-Mirror.com

Sun, Nov-05-2006, 12:05:04 AM	#4
matyoka Silent OPerator Join Date: Feb 2006 Posts: 1,088 In the garage: '05 BMW X5 '06 BMW ///M3 Reputation: 0 Location: Mesa, AZ	Wow, hopefully I can pursuade my BMW dealer to do the same. Tonight I felt it for the first time. I had my 240 lbs brother in the car and I was driving it pretty hard. At the shift between 3 and 4, I felt a slip in the clutch through the gas pedal. Made me wonder what it was and it did it again after backshifting to 3, than again driving it somewhat hard. I read about this extra weight in the car issue before, but a $60k car should not do that at all. __________________ _________________________________ Current: 2006 ///M3 Cabriolet Carbon Black/black/SMG/HK sound/NAV/heated seats/IPOD/6-CD 2005 X5 4.4 Saph black/truffle brown/cpo/cold pack/prem pack/nav/6cd/heat front-back/heat steering

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Clutch slip in 1st gear	M3 Keydet	E46 M3 (2001-2006)	16	Mon, Mar-12-2012 11:27:20 PM
clutch slip normal OR not when hot	resQav8r	E36 M3 (1992-1999)	16	Wed, May-18-2011 12:37:46 AM
SMG Gradient Assist: slip + burned clutch smell	maca	E46 M3 (2001-2006)	0	Thu, Aug-09-2007 01:06:00 AM
Clutch Slip - Help!	matthewjeans	E36 M3 (1992-1999)	19	Tue, Aug-01-2006 05:58:40 PM
SMG clutch slip 1st to 2nd	dskippy888	E46 M3 (2001-2006)	21	Fri, Feb-25-2005 10:41:14 AM

Sat, Nov-04-2006, 09:42:58 PM	#2
TUNEDM3 Stay Ripping Join Date: Oct 2000 Posts: 642 Reputation: 0	My friend had the same issue on his car...replaced the clutch, flywheel and updated the software and the car has never shifted harder. Its like a new car altogether.

Sat, Nov-04-2006, 11:03:39 PM	#3
avo8686 Registered User Join Date: May 2006 Posts: 933 Reputation: 0 Location: Miami	Did they replaced all of this under warranty?