What noise is this?

edvc520 · 06-07-2011, 08:51 AM

Hi, my car has this sound that I think it's not normal
It doesn't happen often, I brought the car to the dealer and they couldn't replicate it.
I find the noise more audible under the car and close to the front wheels, it's less audible standing in front of the car. It sounds like metal knocking
Anyways, here are 2 videos..
Hopefully someone knows what the problem might be.

Express · 06-07-2011, 08:53 AM

1- marbles in your engine?
2- something rubbing against your exhaust?
3- thats pretty weird... i have similar noises, but not that loud.

benzo23 · 06-07-2011, 08:55 AM

Nice diesel. Thats the sound of you selling that car and getting something else lol

edvc520 · 06-07-2011, 09:00 AM

I think something might be lose ..
because when I turn on/off the ignition, i can hear something knocking for a few times after on/off

axztx · 06-07-2011, 10:00 AM

That sounds like a trip to the shop.

krnboy817 · 06-07-2011, 11:57 AM

lifter issues.

fdriller9 · 06-07-2011, 12:22 PM

Quote:

Originally Posted by krnboy817

lifter issues.

Nahh that's not the lifters.

Bartman619 · 06-07-2011, 12:29 PM

..the infamous e90 lifter tick. mine seems to be more prominent when the oil level drops to about 5/8 to 1/2 level. i added just enough oil to bring it up to 3/4 and the tick goes away....or you can try to have your heads replace under warranty. that's if the tick is always present and doesn't go away after the engine warms up.

benzo23 · 06-07-2011, 02:05 PM

Sounds like the HPFP or rattling wastegates...

ianbiz · 06-07-2011, 02:14 PM

sounds like a coil pack might be dead. why not open the hood and make another video so we can get a better listen.

edvc520 · 06-08-2011, 01:43 PM

by the way..
the noise goes away when i disengage the clutch (step on the clutch)
is it still coil pack or engine lifter?

fdriller9 · 06-08-2011, 06:50 PM

I'm 80% positive that is NOT the exhaust lifters ticking. The exhaust lifters make a more of a tapping sound.

BTW, you CAN get the head replaced if the ticking goes away after longer drives.....the TSB specifies this as one of the symptoms. I got mine replaced and the ticking did go away after longer drives....after the oil got up to operating temps and thinned out allowing it to circulate into the lifter area.

fdriller9 · 06-08-2011, 06:54 PM

Quote:

Originally Posted by benzo23

Sounds like the HPFP or rattling wastegates...

On an NA engine? I don't think so....

spdy330 · 06-08-2011, 08:44 PM

That sounds horrible! Good luck OP!

inline607 · 06-08-2011, 10:37 PM

Sounds like a bad motor mount to me. Does engine/car vibrate?

edvc520 · 06-08-2011, 11:02 PM

Quote:

Originally Posted by inline607

Sounds like a bad motor mount to me. Does engine/car vibrate?

very minor vibration
and as i said in previous post.. the noise goes away when i press the clutch.. but i can still feel the vibration

inline607 · 06-08-2011, 11:09 PM

Maybe a cracked exhaust manifold. Have someone rev engine and listen for exhaust leaks.

Evice · 06-09-2011, 07:08 PM

"the noise goes away when i disengage the clutch"

His problem is his flywheel, pressure plate assembly. Something is wrong with it. I can't say exactly what but on my e36 M3 I have LWT flywheel /w M5 clutch, and it makes pretty much same noise and stops when clutch is pressed.

06-07-2011, 08:51 AM	#1
edvc520 Lieutenant 37 Rep 523 Posts Drives: E93 335i Join Date: Aug 2010 Location: Toronto iTrader: (3)	What noise is this? Hi, my car has this sound that I think it's not normal It doesn't happen often, I brought the car to the dealer and they couldn't replicate it. I find the noise more audible under the car and close to the front wheels, it's less audible standing in front of the car. It sounds like metal knocking Anyways, here are 2 videos.. Hopefully someone knows what the problem might be.
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06-07-2011, 08:53 AM	#2
Express Major General 369 Rep 8,693 Posts Drives: 06 330i Join Date: Dec 2008 Location: The Promise Land iTrader: (17) Garage List 2006 BMW 330i [8.30]	1- marbles in your engine? 2- something rubbing against your exhaust? 3- thats pretty weird... i have similar noises, but not that loud.
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06-07-2011, 08:55 AM	#3
benzo23 Colonel 74 Rep 2,848 Posts Drives: 14 F30 AW MSport Join Date: Apr 2010 Location: FL iTrader: (1)	Nice diesel. Thats the sound of you selling that car and getting something else lol
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06-07-2011, 09:00 AM	#4
edvc520 Lieutenant 37 Rep 523 Posts Drives: E93 335i Join Date: Aug 2010 Location: Toronto iTrader: (3)	I think something might be lose .. because when I turn on/off the ignition, i can hear something knocking for a few times after on/off
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06-07-2011, 10:00 AM	#5
axztx Second Lieutenant 12 Rep 219 Posts Drives: 08 e92 328xi Join Date: Nov 2009 Location: NJ iTrader: (4)	That sounds like a trip to the shop.
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06-07-2011, 11:57 AM	#6
krnboy817 Major 44 Rep 1,011 Posts Drives: 2008 328i coupe Join Date: Oct 2010 Location: DFW texas iTrader: (3)	lifter issues. __________________ driving is poetry in motion.
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06-07-2011, 12:29 PM	#8
Bartman619 Captain 25 Rep 701 Posts Drives: Bimmer Join Date: Jun 2008 Location: SDCA iTrader: (2)	..the infamous e90 lifter tick. mine seems to be more prominent when the oil level drops to about 5/8 to 1/2 level. i added just enough oil to bring it up to 3/4 and the tick goes away....or you can try to have your heads replace under warranty. that's if the tick is always present and doesn't go away after the engine warms up.
	Appreciate 0 Quote

06-07-2011, 02:05 PM	#9
benzo23 Colonel 74 Rep 2,848 Posts Drives: 14 F30 AW MSport Join Date: Apr 2010 Location: FL iTrader: (1)	Sounds like the HPFP or rattling wastegates...
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06-07-2011, 02:14 PM	#10
ianbiz Back in a BMW 205 Rep 5,208 Posts Drives: 2015 335i Msport Join Date: Jul 2007 Location: Dallas, TX iTrader: (8)	sounds like a coil pack might be dead. why not open the hood and make another video so we can get a better listen. __________________ Ian
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06-08-2011, 01:43 PM	#11
edvc520 Lieutenant 37 Rep 523 Posts Drives: E93 335i Join Date: Aug 2010 Location: Toronto iTrader: (3)	by the way.. the noise goes away when i disengage the clutch (step on the clutch) is it still coil pack or engine lifter?
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06-08-2011, 06:50 PM	#12
fdriller9 Banned 253 Rep 7,089 Posts Drives: '06 AW 330xi Join Date: Mar 2009 Location: North Jersey/Philly/NYC iTrader: (4) Garage List 2006 330xi [6.44]	I'm 80% positive that is NOT the exhaust lifters ticking. The exhaust lifters make a more of a tapping sound. BTW, you CAN get the head replaced if the ticking goes away after longer drives.....the TSB specifies this as one of the symptoms. I got mine replaced and the ticking did go away after longer drives....after the oil got up to operating temps and thinned out allowing it to circulate into the lifter area.
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06-08-2011, 08:44 PM	#14
spdy330 Major General 530 Rep 6,149 Posts Drives: 05 Tundra, 15 FIT, 17 CRV Join Date: Dec 2009 Location: Chino Hills, CA iTrader: (163)	That sounds horrible! Good luck OP! __________________ If you will be purchasing ANY AT&T services online or in store could you mention that you were referred by me? My Employee Referral ID is eo4489. This would be a great help and it costs you nothing, thank you!
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06-08-2011, 10:37 PM	#15
inline607 Private First Class 9 Rep 116 Posts Drives: 2007 E92 Space Gray 328i Join Date: Jun 2011 Location: Los Angeles County iTrader: (0)	Sounds like a bad motor mount to me. Does engine/car vibrate?
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06-08-2011, 11:09 PM	#17
inline607 Private First Class 9 Rep 116 Posts Drives: 2007 E92 Space Gray 328i Join Date: Jun 2011 Location: Los Angeles County iTrader: (0)	Maybe a cracked exhaust manifold. Have someone rev engine and listen for exhaust leaks.
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06-09-2011, 07:08 PM	#18
Evice Major 194 Rep 1,457 Posts Drives: E92M3 Join Date: Apr 2009 Location: Somewhere here iTrader: (1)	"the noise goes away when i disengage the clutch" His problem is his flywheel, pressure plate assembly. Something is wrong with it. I can't say exactly what but on my e36 M3 I have LWT flywheel /w M5 clutch, and it makes pretty much same noise and stops when clutch is pressed. __________________ My Track Videos Last edited by Evice; 06-09-2011 at 07:16 PM..
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