Quiet rattle (from clutch or tranny?)

mr.fabulous · 05-20-2015, 09:43 AM

With my windows up and no music playing, I hear a quiet rattle somewhere forward of where I'm sitting. It's barely noticeable. It's not a consistent or periodic kind of sound, rather one that jumbles all over the place. Play music or lower the windows, and it gets drowned-out.

I realized last night the sound goes away if I depress my clutch or altogether let the car out of gear.

Anybody?

edisapimp · 05-20-2015, 10:03 AM

TO bearing. or flywheel chatter. or Pilot bearing.

Suhb · 05-20-2015, 11:08 AM

Does it happen when you're sitting in neutral? Mine has been making the same noise since I got it. Took it in to the dealer, said it was input shaft bearing making the noise and that it was normal.

MightyMouseTech · 05-20-2015, 11:39 AM

Mine has always had this. Sounds like a bad input shaft bearing. M3 tranny mounts made it louder.

ShocknAwe · 05-20-2015, 11:52 AM

Quote:

Originally Posted by MightyMouseTech

Mine has always had this. Sounds like a bad input shaft bearing. M3 tranny mounts made it louder.

Second this.

mr.fabulous · 05-20-2015, 12:45 PM

Quote:

Originally Posted by MightyMouseTech

Mine has always had this. Sounds like a bad input shaft bearing. M3 tranny mounts made it louder.

no worries, though?

MightyMouseTech · 05-20-2015, 12:46 PM

I am slowly accepting it is normal, whether it is normal or not.

Ihave1 · 05-20-2015, 09:10 PM

I have read this is normal and has to do with the dual mass flywheel. My 08 has always done it.

IEDEI · 05-20-2015, 09:30 PM

flywheel! have heard this on many different manual BMWs....had it on my 135is and now on my 1M as well.

pressing the clutch in usually makes it go away. it's normal to have it though.

1er///M · 05-20-2015, 09:31 PM

I notice a slight vibration from the tranny the causes my shifter to vibrate slightly. Tonight coming home from work I heard a quiet rattle but it sounded like it was from the shift boot or trim surrounding it. When I put my hand on it, it went away.

Not sure if it's the same thing causing the shifter to vibrate and/or causing the rattle sound.

Yeineken · 05-20-2015, 09:55 PM

I've always thought it was the fly wheel as well. I can hear it in between 2k-3k rpm with windows up and the radio off. I have a DCT. Should I be worried about anything?

Solo_M_Tech · 05-22-2015, 06:18 AM

I noticed this on mine after swapping trans mounts. Dealer
Says it is normal and it's the flywheel and input shaft hearing noises. Nothing to worry about though I find it very annoying. I've heard it a lot worse in a friends car. Waiting for something to break at this point lol.

05-20-2015, 09:43 AM	#1
mr.fabulous Captain 209 Rep 893 Posts Drives: Women Crazy Join Date: Dec 2014 Location: Florida Gulf Coast iTrader: (0)	Quiet rattle (from clutch or tranny?) With my windows up and no music playing, I hear a quiet rattle somewhere forward of where I'm sitting. It's barely noticeable. It's not a consistent or periodic kind of sound, rather one that jumbles all over the place. Play music or lower the windows, and it gets drowned-out. I realized last night the sound goes away if I depress my clutch or altogether let the car out of gear. Anybody? __________________ 2011 135i MSport 6MT AW/black, 72Kmiles, bone stock, moneymoneymoneymoneymoneymoneymoneymoneymoneymoney I LOVE THIS CAR
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05-20-2015, 10:03 AM	#2
edisapimp Civil Rights Activist 115 Rep 949 Posts Drives: E46 Sedan, E88 Vert Join Date: Apr 2013 Location: Long Island iTrader: (0)	TO bearing. or flywheel chatter. or Pilot bearing. __________________ E88 Crimson Red Vert MSport 6MT - Listing your mods in your signature is lame. BMS DCI/MHD E30 Flash!!/AA Sport FMIC/VRSF CP w Tial BOV/VRSF 3" DPs/550i clutch w SPEC SMFW/Apex EC-7s/Whiteline RSFB/E92 M3 FCAs/Bilstein B12 Pro Kit/VRSF inlets
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05-20-2015, 11:08 AM	#3
Suhb First Lieutenant 119 Rep 377 Posts Drives: 2010 128i Coupe 6-Speed Join Date: Dec 2012 Location: PA iTrader: (3)	Does it happen when you're sitting in neutral? Mine has been making the same noise since I got it. Took it in to the dealer, said it was input shaft bearing making the noise and that it was normal.
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05-20-2015, 11:39 AM	#4
MightyMouseTech Major General 4338 Rep 6,196 Posts Drives: 13 135i 6MT LeMans Blue MSport Join Date: Feb 2013 Location: Ottawa, Canada iTrader: (0)	Mine has always had this. Sounds like a bad input shaft bearing. M3 tranny mounts made it louder.
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05-20-2015, 12:46 PM	#7
MightyMouseTech Major General 4338 Rep 6,196 Posts Drives: 13 135i 6MT LeMans Blue MSport Join Date: Feb 2013 Location: Ottawa, Canada iTrader: (0)	I am slowly accepting it is normal, whether it is normal or not.
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05-20-2015, 09:10 PM	#8
Ihave1 Private First Class 42 Rep 159 Posts Drives: 2008 135i Join Date: Jan 2011 Location: NC, USA iTrader: (1)	I have read this is normal and has to do with the dual mass flywheel. My 08 has always done it.
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05-20-2015, 09:30 PM	#9
IEDEI Banned 1130 Rep 4,686 Posts Drives: L'Orange Join Date: Jul 2013 Location: Brooklyn, NYC iTrader: (0) Garage List 2011 BMW 1M [8.40]	flywheel! have heard this on many different manual BMWs....had it on my 135is and now on my 1M as well. pressing the clutch in usually makes it go away. it's normal to have it though.
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05-20-2015, 09:31 PM	#10
1er///M Enlisted Member 2 Rep 35 Posts Drives: 2012 135i Join Date: May 2015 Location: Toronto iTrader: (0)	I notice a slight vibration from the tranny the causes my shifter to vibrate slightly. Tonight coming home from work I heard a quiet rattle but it sounded like it was from the shift boot or trim surrounding it. When I put my hand on it, it went away. Not sure if it's the same thing causing the shifter to vibrate and/or causing the rattle sound.
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05-20-2015, 09:55 PM	#11
Yeineken Colonel 1301 Rep 2,093 Posts Drives: '11 135i M Sport Join Date: Dec 2013 Location: Delmarva Peninsula iTrader: (3) Garage List '11 135i [8.20] '16 Ford Hatchback [0.00] '15 X5 [10.00]	I've always thought it was the fly wheel as well. I can hear it in between 2k-3k rpm with windows up and the radio off. I have a DCT. Should I be worried about anything? __________________ Pyrat Clone
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05-22-2015, 06:18 AM	#12
Solo_M_Tech Brigadier General 1688 Rep 3,140 Posts Drives: 2014 M5 6MT Join Date: Nov 2013 Location: Massachusetts iTrader: (7) Garage List 2014 BMW M5 [0.00]	I noticed this on mine after swapping trans mounts. Dealer Says it is normal and it's the flywheel and input shaft hearing noises. Nothing to worry about though I find it very annoying. I've heard it a lot worse in a friends car. Waiting for something to break at this point lol. __________________ 2014 M5 6MT
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