Hmm, is this noise from the turbo or the clutch :(

z19930612 · 07-25-2013, 04:45 PM

that noise when I switch off the engine

thenewrick · 07-25-2013, 04:52 PM

I think maybe it's the dual mass flywheel but I'm not sure; totally normal.

z19930612 · 07-25-2013, 05:05 PM

Quote:

Originally Posted by thenewrick

I think maybe it's the dual mass flywheel but I'm not sure; totally normal.

But will it ruin my transmission

Dozhdbog · 07-25-2013, 05:29 PM

Sometimes, I get a similar noise when I turn my car off. I drive an a/t.

NoLimitBimmer · 07-25-2013, 05:51 PM

Is the noise coming from the front or rear?

z19930612 · 07-25-2013, 06:08 PM

Quote:

Originally Posted by NoLimitBimmer

Is the noise coming from the front or rear?

Not so sure cuz I havent ask someone else to turn the car off for me, but I could say it is somewhere under the gear stick and engine

z19930612 · 07-25-2013, 06:09 PM

Quote:

Originally Posted by Dozhdbog

Sometimes, I get a similar noise when I turn my car off. I drive an a/t.

thanks man, so it might not be a clutch issue

NoLimitBimmer · 07-25-2013, 06:25 PM

Quote:

Originally Posted by z19930612

Not so sure cuz I havent ask someone else to turn the car off for me, but I could say it is somewhere under the gear stick and engine

I had a noise like yours but it wasn't as loud and it was coming from the rear...brought it in and they changed the exhaust caps

galahad05 · 07-25-2013, 09:51 PM

I remember some years ago on this forum, someone else had the exact same sound, posted a video of it. If I recall, I had thought it was the direct injectors (and perfectly normal), but someone else came in and mentioned it was something else. Damn, I can't remember what they said it was, but I do remember it's quite safe and normal.

BTW, I get the same sound (rattling sound on engine-off); 6 MT here.

EDIT: Let me try to search through some of my old (early) threads....

galahad05 · 07-25-2013, 09:57 PM

Okay, back from a quick tour down memory lane here.

Turn the engine off while holding the clutch in. If the noise goes away, it's the infamous manual tranny "death rattle" (ironically named: it's okay). If the sound is still there.....well.....

tony20009 · 07-25-2013, 10:18 PM

I somewhat resembles the turbo waste gate (TWG) rattle. Does it only exist when the car is cold started and during the first few minutes of running after a cold start? If so, I'd say it TWG rattle.

Sadly, given the quality of the recording, that sound might resemble any number of things. I'd at have an expert definitively ascertain the true cause. Once I knew what it is, I'd then decide what, if anything I'd do about it.

z19930612 · 07-26-2013, 08:10 AM

Quote:

Originally Posted by galahad05

Okay, back from a quick tour down memory lane here.

Turn the engine off while holding the clutch in. If the noise goes away, it's the infamous manual tranny "death rattle" (ironically named: it's okay). If the sound is still there.....well.....

but how about flywheel... It connects to the engine

galahad05 · 07-26-2013, 10:01 AM

Well, if you do what I suggested and the noise goes away with the clutch pedal pushed in, then the noise is from the dual-mass flywheel.
I've read that this is a common....feature....of many different brands of cars that have manual transmissions and dual-mass flywheels. Nothing to be worried about.

z19930612 · 07-26-2013, 11:27 AM

Quote:

Originally Posted by galahad05

Well, if you do what I suggested and the noise goes away with the clutch pedal pushed in, then the noise is from the dual-mass flywheel.
I've read that this is a common....feature....of many different brands of cars that have manual transmissions and dual-mass flywheels. Nothing to be worried about.

Even ok for track days?

galahad05 · 07-26-2013, 01:06 PM

Ha! You have a 335; you'll have other things to worry about on the track (i.e. limp mode overheating).

ErvGotti · 07-26-2013, 01:40 PM

Quote:

Originally Posted by galahad05

Okay, back from a quick tour down memory lane here.

Turn the engine off while holding the clutch in. If the noise goes away, it's the infamous manual tranny "death rattle" (ironically named: it's okay). If the sound is still there.....well.....

This... Do what galahad05 said, press in the clutch pedal while shutting off the engine and if it doesn't make that sound it's the dual mass flywheel and it totally normal. I've got used to shutting off the car like this as my car made this noise since new.

Antetokounmpo · 07-26-2013, 02:02 PM

Pretty sure this sound is normal when shutting it off with the clutch out. Mine has always done this when I turn it off in neutral with the clutch out. But when I have the clutch in (almost always) it doesn't make that noise. If yours doesn't make it when your clutch is in then you're fine.

ThEnder · 07-26-2013, 02:04 PM

Sounds perfectly normal for an MT car. My E46 made the same noise if I shut it off with the clutch out, same with my Jeep Wrangler and my E90. I don't think you have anything to worry about, but if the noise bothers you then just make sure you have the clutch depressed when you switch off the car.

07-25-2013, 04:45 PM	#1
z19930612 Lieutenant 129 Rep 483 Posts Drives: 1 Series M Coupe Join Date: Feb 2013 Location: Shanghai iTrader: (0)	Hmm, is this noise from the turbo or the clutch :( that noise when I switch off the engine
	Appreciate 0 Tweet Quote

07-25-2013, 04:52 PM	#2
thenewrick Captain 26 Rep 606 Posts Drives: 2007 E93 335i Black Sapphire Join Date: Dec 2012 Location: USA iTrader: (2)	I think maybe it's the dual mass flywheel but I'm not sure; totally normal.
	Appreciate 0 Quote

07-25-2013, 05:29 PM	#4
Dozhdbog Lieutenant Colonel 86 Rep 1,849 Posts Drives: 2011 335i Sedan Join Date: Aug 2011 Location: Hollywood iTrader: (0)	Sometimes, I get a similar noise when I turn my car off. I drive an a/t. __________________ 2011 E90 / Premium Package / Stage 2 PPK / Performance Suspension
	Appreciate 0 Quote

07-25-2013, 05:51 PM	#5
NoLimitBimmer Private 2 Rep 52 Posts Drives: 2008 BMW 335i Join Date: Jul 2013 Location: Mississippi iTrader: (1)	Is the noise coming from the front or rear?
	Appreciate 0 Quote

07-25-2013, 09:51 PM	#9
galahad05 Brigadier General 158 Rep 3,158 Posts Drives: '07 335i e90 Join Date: Mar 2008 Location: Long Island NY iTrader: (0)	I remember some years ago on this forum, someone else had the exact same sound, posted a video of it. If I recall, I had thought it was the direct injectors (and perfectly normal), but someone else came in and mentioned it was something else. Damn, I can't remember what they said it was, but I do remember it's quite safe and normal. BTW, I get the same sound (rattling sound on engine-off); 6 MT here. EDIT: Let me try to search through some of my old (early) threads.... __________________ Always do right. This will gratify some people and astonish the rest. --Mark Twain
	Appreciate 0 Quote

07-25-2013, 09:57 PM	#10
galahad05 Brigadier General 158 Rep 3,158 Posts Drives: '07 335i e90 Join Date: Mar 2008 Location: Long Island NY iTrader: (0)	Okay, back from a quick tour down memory lane here. Turn the engine off while holding the clutch in. If the noise goes away, it's the infamous manual tranny "death rattle" (ironically named: it's okay). If the sound is still there.....well..... __________________ Always do right. This will gratify some people and astonish the rest. --Mark Twain
	Appreciate 0 Quote

07-25-2013, 10:18 PM	#11
tony20009 Major General 1045 Rep 5,660 Posts Drives: BMW 335i - Coupe Join Date: Jun 2009 Location: Washington, DC iTrader: (0)	I somewhat resembles the turbo waste gate (TWG) rattle. Does it only exist when the car is cold started and during the first few minutes of running after a cold start? If so, I'd say it TWG rattle. Sadly, given the quality of the recording, that sound might resemble any number of things. I'd at have an expert definitively ascertain the true cause. Once I knew what it is, I'd then decide what, if anything I'd do about it. __________________ Cheers, Tony ------------------------------------------------------------------------------------------ '07, e92 335i, *Sparkling Graphite, Coral Leather, Aluminum, 6-speed*
	Appreciate 0 Quote

07-26-2013, 10:01 AM	#13
galahad05 Brigadier General 158 Rep 3,158 Posts Drives: '07 335i e90 Join Date: Mar 2008 Location: Long Island NY iTrader: (0)	Well, if you do what I suggested and the noise goes away with the clutch pedal pushed in, then the noise is from the dual-mass flywheel. I've read that this is a common....feature....of many different brands of cars that have manual transmissions and dual-mass flywheels. Nothing to be worried about. __________________ Always do right. This will gratify some people and astonish the rest. --Mark Twain
	Appreciate 0 Quote

07-26-2013, 01:06 PM	#15
galahad05 Brigadier General 158 Rep 3,158 Posts Drives: '07 335i e90 Join Date: Mar 2008 Location: Long Island NY iTrader: (0)	Ha! You have a 335; you'll have other things to worry about on the track (i.e. limp mode overheating). __________________ Always do right. This will gratify some people and astonish the rest. --Mark Twain
	Appreciate 0 Quote

07-26-2013, 02:02 PM	#17
Antetokounmpo Brigadier General 1552 Rep 3,475 Posts Drives: E90 6MT FBO; '18 F150 Platinum Join Date: Jul 2013 Location: WI iTrader: (3) Garage List 2018 Ford F-150 Pla ... [0.00] 2008 BMW 335xi [0.00]	Pretty sure this sound is normal when shutting it off with the clutch out. Mine has always done this when I turn it off in neutral with the clutch out. But when I have the clutch in (almost always) it doesn't make that noise. If yours doesn't make it when your clutch is in then you're fine. __________________ 2008 335xi 6MT \| VRSF Catless DP \| VRSF 7" FMIC \| VRSF CP \| TIAL BOV \| DCI \| MHD 2+ BC Racing BR \| Stoptech 600 \| Firehawk Indy 500 255 Square \| Atric Altimax 225 Sq. 2018 F-150 Platinum 701A \| FX4 \| 3.5 EcoBeast
	Appreciate 0 Quote

07-26-2013, 02:04 PM	#18
ThEnder First Lieutenant 26 Rep 336 Posts Drives: E90 LCI N54 6MT Join Date: May 2013 Location: San Francisco iTrader: (0)	Sounds perfectly normal for an MT car. My E46 made the same noise if I shut it off with the clutch out, same with my Jeep Wrangler and my E90. I don't think you have anything to worry about, but if the noise bothers you then just make sure you have the clutch depressed when you switch off the car.
	Appreciate 0 Quote