rattle noise. - BMW 3-Series (E90 E92) Forum

dirtybird_434 · 11-16-2011, 10:54 AM

I have a rattle noise coming from the car on idle and in neutral. Goes away when the clutch is fully pressed. Seems to get louder when the clutch is press halfway.

Did some research and getting a sense that it might be a "throw out bearing"?
Anyone have this issue? Cost?
Hope I don't have to replace the clutch.
I changed out my CDV and brake fluid flush, I hope that had nothing to do it.

MiroE90 · 11-16-2011, 11:16 AM

my car does the exact same thing. I took it to BMW and they said that it was normal. I would like to know though if anyone else has more insight as well

2kaccordocoupe · 11-16-2011, 02:47 PM

May car has also done this since delivery, worse in the cold weather. Seems like it's the throw bearing.

I guess it's normal to a certain extent, maybe they will change it if it gets excessively louder

dirtybird_434 · 11-16-2011, 04:35 PM

Quote:

Originally Posted by 2kaccordocoupe

May car has also done this since delivery, worse in the cold weather. Seems like it's the throw bearing.

I guess it's normal to a certain extent, maybe they will change it if it gets excessively louder

Yes, mine has just started doing this

zuluZero · 11-17-2011, 11:59 AM

Quote:

Originally Posted by dirtybird_434

I have a rattle noise coming from the car on idle and in neutral. Goes away when the clutch is fully pressed. Seems to get louder when the clutch is press halfway.

Did some research and getting a sense that it might be a "throw out bearing"?
Anyone have this issue? Cost?
Hope I don't have to replace the clutch.
I changed out my CDV and brake fluid flush, I hope that had nothing to do it.

My 2006 6MT (no CDV delete, but recent brake flush) does the same thing since forever, but it is subtle. I felt it was getting a *little* stronger, perhaps with some shudder under light load in 1st gear (like easing up a driveway) - so I paid BMW to diagnose it. They claim they cant detect it, maybe that's their way of saying it's normal.

Ghoti · 11-17-2011, 11:59 PM

I've also had the same issue. It tends to sound louder in the colder weather, but it's still reasonably faint that I don't notice it most of the time. It has stayed the same since I bought it. Took it to BMW and they didn't think it was an issue, but also couldn't say what it was from.

ran_i_am · 11-23-2011, 01:56 AM

I think it is the downpipes that is making the rasp noise when ur feet is just touching the gas paddle in lower (1st and 2nd mostly) gears. after some research I found a video that actually has the stock downpipes with the same rasp I do. but with the after market catless DP, it was gone.
link:

I personally dont think its a big deal. but would love to know if this will cause problems in the future.

Tzu · 11-28-2011, 08:15 AM

At takeoff, you can hear if the downpipes are the source of the rattle as the pitch will change with increasing RPM.

I had my transmission swapped and it was a non-rattle one to one that rattles in neutral at idle. Needless to say, they wont give me a new one lol. Not too many people here have exhibited issues with the 6MT tranny, but I bet there will be a lot coming soon...

fizzerd · 12-03-2011, 09:21 AM

My car does this too in idle n neutral. No noise or rattle when clutch fully pressed. Whats a throw out bearing?

Glim · 12-04-2011, 03:43 AM

One of my kids dropped a small toy which ended up in the under the seat foot heater vent that faces the back seat passengers feet, it used to rattle, buzz and clunk until I fished it out (small orange round octopus.)

11-16-2011, 10:54 AM	#1
dirtybird_434 Private First Class Drives: 2006 330xi Join Date: Mar 2011 Location: Toronto Posts: 136 iTrader: (2)	rattle noise. I have a rattle noise coming from the car on idle and in neutral. Goes away when the clutch is fully pressed. Seems to get louder when the clutch is press halfway. Did some research and getting a sense that it might be a "throw out bearing"? Anyone have this issue? Cost? Hope I don't have to replace the clutch. I changed out my CDV and brake fluid flush, I hope that had nothing to do it.
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11-16-2011, 02:47 PM	#3
2kaccordocoupe Colonel Drives: 2009 335i E92 Coupe Join Date: Nov 2008 Location: GTA Posts: 2,675 iTrader: (2) Garage List 2009 e92 335i [0.00]	May car has also done this since delivery, worse in the cold weather. Seems like it's the throw bearing. I guess it's normal to a certain extent, maybe they will change it if it gets excessively louder __________________ 2009 335i E92 Coupe Manual/Navigation/Executive/Audiophile/Sport/19s Alpine White/Coral Red Dakota

11-17-2011, 11:59 PM	#6
Ghoti Second Lieutenant Drives: 335i Join Date: Aug 2011 Location: Vancouver Posts: 263 iTrader: (0)	I've also had the same issue. It tends to sound louder in the colder weather, but it's still reasonably faint that I don't notice it most of the time. It has stayed the same since I bought it. Took it to BMW and they didn't think it was an issue, but also couldn't say what it was from. __________________ SG e92 335i 6MT / Cobb S2+ Agg / ETS FMIC / BMS DCI / AR DPs / AE Performance Quad / Eibach Pro-Kit / Painted Grill / Aero Lip / M3 Skirts / M-Tech Rear / DD Diffuser / Painted Reflectors / UUC Evo3 SSK + RK6A-L knob + DSSR / BK BR05 18s / LUX H8 V3 / Coding e36 M3 ... gone but not forgotten

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11-16-2011, 11:16 AM	#2
MiroE90 Second Lieutenant Drives: 2007 335i Jet Black Join Date: Jun 2011 Location: Toronto, ON Posts: 203 iTrader: (4)	my car does the exact same thing. I took it to BMW and they said that it was normal. I would like to know though if anyone else has more insight as well

11-23-2011, 01:56 AM	#7
ran_i_am STANCE Drives: Slammed Cars Join Date: Jul 2009 Location: Toronto Posts: 69 iTrader: (0) Garage List 2007 BMW 335i [0.00] 2007 BMW 335i [0.00] 2003 Nissan 350Z [0.00]	I think it is the downpipes that is making the rasp noise when ur feet is just touching the gas paddle in lower (1st and 2nd mostly) gears. after some research I found a video that actually has the stock downpipes with the same rasp I do. but with the after market catless DP, it was gone. link: I personally dont think its a big deal. but would love to know if this will cause problems in the future.

11-28-2011, 08:15 AM	#8
Tzu Major Drives: 335i Join Date: Jun 2010 Location: Toronto Posts: 1,203 iTrader: (1)	At takeoff, you can hear if the downpipes are the source of the rattle as the pitch will change with increasing RPM. I had my transmission swapped and it was a non-rattle one to one that rattles in neutral at idle. Needless to say, they wont give me a new one lol. Not too many people here have exhibited issues with the 6MT tranny, but I bet there will be a lot coming soon...

12-03-2011, 09:21 AM	#9
fizzerd Captain Drives: 328i Join Date: May 2007 Location: Canada Posts: 646 iTrader: (11)	My car does this too in idle n neutral. No noise or rattle when clutch fully pressed. Whats a throw out bearing?

12-04-2011, 03:43 AM	#10
Glim Captain Drives: 2006 330i Join Date: Jun 2011 Location: Victoria, BC Posts: 771 iTrader: (0)	One of my kids dropped a small toy which ended up in the under the seat foot heater vent that faces the back seat passengers feet, it used to rattle, buzz and clunk until I fished it out (small orange round octopus.)