Transmission Noise

reRESERVEDFX · 05-14-2009, 09:44 PM

Hi,

Ever since I bought the car I notice an alarming noise that dealer can't do anything about. When I drop the car in 1st gear, add gas and let off the clutch, it makes fluttering noise from the rear axle. Then, when it's rolling and I press clutch in but go kinda late off gas, there will be loud thump from the rear axle.

The fluttering sound is most prominent when I'm reversing or when I turn off the car without holding clutch in.

Is that a normal operation? Something like that didn't exist on my E39 M5.

Dealer replaced clutch and drive plate once. It didn't help...

BMWI6 · 05-15-2009, 02:35 AM

my car does the same thing, like if the acle was hitting when im going slow and accelerate. or when im in reverse, i always though this was normal. oh and i def. hear it when i turn it off, this is my 3rd BMW and they all have done this.

jragan · 05-15-2009, 08:20 AM

It's clutch chatter and, I believe, comes from the fact that we have a dual mass fly wheel. It's completely normal.

fatmatt0116 · 05-15-2009, 08:12 PM

I've seen replacement clutches which are supposed to have less chatter

reRESERVEDFX · 05-16-2009, 11:23 AM

Well I can live with the chatter but what about that thump noise?? Is that also caused by dual mass? I'm willing to install single mass flywheel to get rid of it. It'd be a nice performance upgrade as well.

05-14-2009, 09:44 PM	#1
reRESERVEDFX (oO (\|\|\|\|) (\|\|\|\|) Oo) 10 Rep 165 Posts Drives: 06 BMW Z4 3.0i 03 BMW M5 DINAN Join Date: Oct 2008 Location: Downers Grove, IL iTrader: (0)	Transmission Noise Hi, Ever since I bought the car I notice an alarming noise that dealer can't do anything about. When I drop the car in 1st gear, add gas and let off the clutch, it makes fluttering noise from the rear axle. Then, when it's rolling and I press clutch in but go kinda late off gas, there will be loud thump from the rear axle. The fluttering sound is most prominent when I'm reversing or when I turn off the car without holding clutch in. Is that a normal operation? Something like that didn't exist on my E39 M5. Dealer replaced clutch and drive plate once. It didn't help... __________________ 2006 Porsche 911 C4S Black/Black 6MT/Sport Chrono/Extended Leather/GT2 bucket seats/Turbo wheels Soon to come 07 BMW Z4M Coupe Black/Red
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05-15-2009, 02:35 AM	#2
BMWI6 Major 96 Rep 1,337 Posts Drives: 335is Join Date: Feb 2008 Location: Miami, Fl iTrader: (2)	my car does the same thing, like if the acle was hitting when im going slow and accelerate. or when im in reverse, i always though this was normal. oh and i def. hear it when i turn it off, this is my 3rd BMW and they all have done this. __________________ If everything seems under control, then you aren't going fast enough"
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05-15-2009, 08:20 AM	#3
jragan Imola Lover 26 Rep 749 Posts Drives: 2007 Imola Red M Coupe Join Date: Jul 2008 Location: Fort Worth, Texas iTrader: (0)	It's clutch chatter and, I believe, comes from the fact that we have a dual mass fly wheel. It's completely normal. __________________ His: RIP-"Ruby" *E86 ///M Coupe: Pics Track Pics Short Vids Long Vids Hers: 997-1 C4S*: Pics
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05-15-2009, 08:12 PM	#4
fatmatt0116 Hooligan 55 Rep 680 Posts Drives: 2014 Porsche Cayenne Turbo S Join Date: Dec 2008 Location: Boston, MA iTrader: (0)	I've seen replacement clutches which are supposed to have less chatter __________________ 2014 Porsche Cayenne Turbo S 2011 X5 5.0 Dinan - SOLD 2007 Imola Red Z4 M Coupe -SOLD 2004 Navy Blue BMW 325Ci
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05-16-2009, 11:23 AM	#5
reRESERVEDFX (oO (\|\|\|\|) (\|\|\|\|) Oo) 10 Rep 165 Posts Drives: 06 BMW Z4 3.0i 03 BMW M5 DINAN Join Date: Oct 2008 Location: Downers Grove, IL iTrader: (0)	Well I can live with the chatter but what about that thump noise?? Is that also caused by dual mass? I'm willing to install single mass flywheel to get rid of it. It'd be a nice performance upgrade as well. __________________ 2006 Porsche 911 C4S Black/Black 6MT/Sport Chrono/Extended Leather/GT2 bucket seats/Turbo wheels Soon to come 07 BMW Z4M Coupe Black/Red
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