Weird Metal Popping Noise

Mr Tonka · 03-25-2009, 11:34 AM

What The Hell Happened To Cowmoo?????

SS32 · 03-25-2009, 12:56 PM

At first, I was wondering why you would say that, then I realized my name change went through. Still waiting for them to change it on E46....

Mr Tonka · 03-25-2009, 09:50 PM

What is USF1?

torredresen · 03-26-2009, 06:13 AM

I had the EXACT same noise... Went at the redlight, pedal to the metal tot 80mph, and noise was gone...

SS32 · 03-26-2009, 09:03 AM

Quote:

Originally Posted by MP0WER

What is USF1?

Well, apparently they've already changed the team name, but it's the US F1 team based in NC.

http://en.wikipedia.org/wiki/US_Grand_Prix_Engineering

Mr Tonka · 03-26-2009, 04:25 PM

gotcha. I was thinking University of South Florida...here in tampa.

Kyoshi71 · 03-03-2010, 01:53 PM

I just noticed this same issue last night. I thought it was a rock pinging against the brake shield.

M3luvr · 03-03-2010, 06:13 PM

I had this issue 2 weeks ago while I was attending a car control clinic. I asked the instructors and they thought I got a rock caught in the car. I tried backing up to clear it and that did not work. The sound comes during idle and at low speeds only. I took it to the dealer and of course they could not find anything wrong with the car and the sound went away while at the shop. They said all exhaust connections were good too. It sounds like something metallic is hitting another metal part in the left rear section. It went away for a while then came back on the other night. I'm still clueless as to the cause.

jkr · 03-03-2010, 07:19 PM

I had the same issue in my old m3... was told by a good friend of mine who knows much more about cars than I do that its the lim slip differential...

Kyoshi71 · 03-03-2010, 07:57 PM

Quote:

Originally Posted by jkr

I had the same issue in my old m3... was told by a good friend of mine who knows much more about cars than I do that its the lim slip differential...

LSD...really?? The sound is like an empty soup can dragging on the street. Next I'm gonna write "just married" accross the back window.

It did go away after about 20 min. I have never heard anything like it.

M3luvr · 03-03-2010, 08:27 PM

I checked under the car and started tapping on the different components with another metallic object and the closest duplication of the sound I got was from the exhaust can.

skim · 03-03-2010, 08:59 PM

paranormal activity!

M_ZVER · 03-03-2010, 11:00 PM

I had the same thing happen to me. It only happened once when I backed into the driveway after driving. Although it did not make noise going forward, as I was testing and trying to figure out where it is coming from. The car has been parked ever since, been two weeks. So never got around to see if it will happen again. We'll see!!!!

FStop7 · 03-03-2010, 11:39 PM

I totally had this happen, too. Before it happened to me I thought it was caused by something caught on a brake rotor. Now I don't think so. But that dragging sound drives me insane. It's been a while since it happened, but now I realize this is the same thing as described in this thread.

I'm 99% sure it's not the differential. But I have no idea what it could be.

pumper206 · 03-04-2010, 03:27 AM

Me too. This weird pinging noise, like a dragging empty tin can, happens occasionally while reversing. It comes and goes as it pleases. Pretty embarassing, extremely annoying. I was, however, able to reproduce the sound by tapping the brake shield. Must be the rock theory?

Question to all experiencing this, are your cars lowered? Mine is.

Powerslide · 03-04-2010, 08:08 AM

Quote:

Originally Posted by VanM3Lover

I heard this exact same noise while backing out of the garage a few times when the car was new, haven't heard it since. I figured it's most likely a stone caught near the spray guard as SenorFunkyPants says so I didn't start a thread on this.

Now this might be a little OT, you can skip this if you don't want to read. After turning off the car, there are very light taping noise coming off from the front wheel wells, sounds like tap the rotor with screw driver. But what really gets me worried is that every time after about 30mins, there is a very big popping noise from the right side, sounds like hitting the plastic fender from the inside, anybody know what this might be?

I have experienced these exact same symptoms with my car occasionally since it picked it up in the summer of 2008. Never had it investigated but no control messages have ever come up, nor has the car's performance ever suffered. Given that this appears to be very common with no apparent ill-effects, I assume it is normal and non-problematic.

NeoE46 · 03-05-2010, 02:01 AM

metal expansion

PortoM3 · 03-05-2010, 04:40 AM

I was about to reply that I too have heard this noise and to my shock there were a lot of replies. I left my car parked for a week and when I came back, I was pulling it out of the garage and heard the same noise. To me, it sounded like metal expanding. I assumed it was the cold garage + heat outside + engine and brakes not used for a week = sound.
I inspected the car and everything seemed normal and good to go.

stE92M3 · 03-05-2010, 09:50 PM

I just heard this tonight. It's like dragging newly wed soup cans; comes from the rear (sounds like the brakes) and goes away. Happens very rarely and a heatup from a cold start after several days seems to be the common theme. Oh well.

niqui · 03-06-2010, 01:34 PM

exactly what i had/
i posted a thread a year ago.
dealer took out exhaust and drivetrain or somecrap and oiled it all, etc, hasnt come back since.

oct1285 · 04-05-2010, 10:02 PM

I to have fallen victim to pining tin can noise from the rear. I really don't see how it could be a rock because I drove it saturday it was fine, let it sit sunday, and all of a sudden a rock finds itself into my rear brake on monday? I'm going to take it into the dealer and see what they say, plus I'm going to badger them about that low speed full lock turn noise I keep getting. If anything I'll come out of the dealer with a washed car.

J08M3 · 04-06-2010, 06:12 AM

Has anyone found this to be something other than a rock yet?

03-25-2009, 11:34 AM	#23
Mr Tonka is probably out riding. 6058 Rep 2,294 Posts Drives: Something Italian Join Date: Feb 2009 Location: Sweatypeninsula iTrader: (0)	What The Hell Happened To Cowmoo????? __________________ "There is no greater tyranny than that which is perpetrated under the shield of the law and in the name of justice. -Charles de Secondat"
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03-25-2009, 12:56 PM	#24
SS32 Major 156 Rep 1,430 Posts Drives: 2008 M3 Join Date: May 2007 Location: Raleigh, NC iTrader: (0)	At first, I was wondering why you would say that, then I realized my name change went through. Still waiting for them to change it on E46.... __________________ V1 DIY - Blinder M45 DIY - Exhaust Cutouts - Removed Clutch Pedal Spring DIY - Fiamm Air Horns
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03-25-2009, 09:50 PM	#25
Mr Tonka is probably out riding. 6058 Rep 2,294 Posts Drives: Something Italian Join Date: Feb 2009 Location: Sweatypeninsula iTrader: (0)	What is USF1? __________________ "There is no greater tyranny than that which is perpetrated under the shield of the law and in the name of justice. -Charles de Secondat"
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03-26-2009, 06:13 AM	#26
torredresen Captain 53 Rep 712 Posts Drives: M3 09 E93 JzB Fox Red extended Join Date: Apr 2008 Location: Belgium iTrader: (0) Garage List 2005 Z4; 2.0 [0.00] 2005 Z4 [0.00]	I had the EXACT same noise... Went at the redlight, pedal to the metal tot 80mph, and noise was gone...
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03-26-2009, 04:25 PM	#28
Mr Tonka is probably out riding. 6058 Rep 2,294 Posts Drives: Something Italian Join Date: Feb 2009 Location: Sweatypeninsula iTrader: (0)	gotcha. I was thinking University of South Florida...here in tampa. __________________ "There is no greater tyranny than that which is perpetrated under the shield of the law and in the name of justice. -Charles de Secondat"
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03-03-2010, 01:53 PM	#29
Kyoshi71 Colonel 93 Rep 2,528 Posts Drives: 2010 M3 Coupe Join Date: Jul 2006 Location: New York iTrader: (0)	I just noticed this same issue last night. I thought it was a rock pinging against the brake shield.
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03-03-2010, 06:13 PM	#30
M3luvr Private First Class 2 Rep 146 Posts Drives: 09 M3 E90 DCT Silverstone Join Date: Jun 2009 Location: South San Francisco iTrader: (0) Garage List 2009 E90 M3 DCT [0.00]	I had this issue 2 weeks ago while I was attending a car control clinic. I asked the instructors and they thought I got a rock caught in the car. I tried backing up to clear it and that did not work. The sound comes during idle and at low speeds only. I took it to the dealer and of course they could not find anything wrong with the car and the sound went away while at the shop. They said all exhaust connections were good too. It sounds like something metallic is hitting another metal part in the left rear section. It went away for a while then came back on the other night. I'm still clueless as to the cause. __________________ 09 E90 MDCT Silverstone, Black Extended, Prem/Tech/Cold, Carbon Leather, 19's, Enhanced Sound, IPod, PDC, 3M clear bra, 3M tint 35% front, 20% rear, painted reflectors
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03-03-2010, 07:19 PM	#31
jkr Private 6 Rep 71 Posts Drives: 2008 M3 cpe Join Date: Apr 2009 Location: NC iTrader: (0)	I had the same issue in my old m3... was told by a good friend of mine who knows much more about cars than I do that its the lim slip differential...
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03-03-2010, 08:27 PM	#33
M3luvr Private First Class 2 Rep 146 Posts Drives: 09 M3 E90 DCT Silverstone Join Date: Jun 2009 Location: South San Francisco iTrader: (0) Garage List 2009 E90 M3 DCT [0.00]	I checked under the car and started tapping on the different components with another metallic object and the closest duplication of the sound I got was from the exhaust can. Last edited by M3luvr; 03-04-2010 at 04:40 PM..
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03-03-2010, 08:59 PM	#34
skim Captain 142 Rep 660 Posts Drives: 07 Z4MC Join Date: Nov 2007 Location: SoCal iTrader: (0)	paranormal activity! __________________ Future mod consideration: exhaust, pulley otherwise, very happy with how the m3 was born
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03-03-2010, 11:00 PM	#35
M_ZVER VROOOOM 4 Rep 41 Posts Drives: 08 IB E92 M3 6SPD, Join Date: Jan 2010 Location: Boston, MA iTrader: (0)	I had the same thing happen to me. It only happened once when I backed into the driveway after driving. Although it did not make noise going forward, as I was testing and trying to figure out where it is coming from. The car has been parked ever since, been two weeks. So never got around to see if it will happen again. We'll see!!!!
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03-03-2010, 11:39 PM	#36
FStop7 I like cars 329 Rep 5,052 Posts Drives: M6 Join Date: Oct 2008 Location: Newbury Park, CA iTrader: (3)	I totally had this happen, too. Before it happened to me I thought it was caused by something caught on a brake rotor. Now I don't think so. But that dragging sound drives me insane. It's been a while since it happened, but now I realize this is the same thing as described in this thread. I'm 99% sure it's not the differential. But I have no idea what it could be. __________________ My photostream: http://www.flickr.com/photos/racelap/
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03-04-2010, 03:27 AM	#37
pumper206 80 Deep, We All Eat!!! 66 Rep 643 Posts Drives: 2009 AW E92 M3 Join Date: Feb 2009 Location: Seattle,Wa iTrader: (5)	Me too. This weird pinging noise, like a dragging empty tin can, happens occasionally while reversing. It comes and goes as it pleases. Pretty embarassing, extremely annoying. I was, however, able to reproduce the sound by tapping the brake shield. Must be the rock theory? Question to all experiencing this, are your cars lowered? Mine is.
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03-05-2010, 02:01 AM	#39
NeoE46 Connoisseur of Velocity 10 Rep 140 Posts Drives: 09 AW E92 M3 w/DCT Join Date: Mar 2008 Location: Houston, TX. iTrader: (0)	metal expansion
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03-05-2010, 04:40 AM	#40
PortoM3 M3lover 27 Rep 485 Posts Drives: SSII M3 Join Date: Nov 2007 Location: Wiesbaden, Germany iTrader: (1)	I was about to reply that I too have heard this noise and to my shock there were a lot of replies. I left my car parked for a week and when I came back, I was pulling it out of the garage and heard the same noise. To me, it sounded like metal expanding. I assumed it was the cold garage + heat outside + engine and brakes not used for a week = sound. I inspected the car and everything seemed normal and good to go.
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03-05-2010, 09:50 PM	#41
stE92M3 New Member 6 Rep 14 Posts Drives: 2008 BMW E92 M3 Coupe Join Date: Dec 2009 Location: Seattle iTrader: (0)	I just heard this tonight. It's like dragging newly wed soup cans; comes from the rear (sounds like the brakes) and goes away. Happens very rarely and a heatup from a cold start after several days seems to be the common theme. Oh well. __________________ - T 2008 BMW M3 Coupe / 6MT / Tech / Cold / Premium / EP Sound / iPod:USB / PDC
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03-06-2010, 01:34 PM	#42
niqui Brigadier General 127 Rep 3,111 Posts Drives: Jet Black E92 M3 Join Date: Feb 2009 Location: Canada iTrader: (7)	exactly what i had/ i posted a thread a year ago. dealer took out exhaust and drivetrain or somecrap and oiled it all, etc, hasnt come back since. __________________ Jet Black E92 M3
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04-05-2010, 10:02 PM	#43
oct1285 Captain 54 Rep 608 Posts Drives: Out of warranty Join Date: Dec 2006 Location: TX iTrader: (4)	I to have fallen victim to pining tin can noise from the rear. I really don't see how it could be a rock because I drove it saturday it was fine, let it sit sunday, and all of a sudden a rock finds itself into my rear brake on monday? I'm going to take it into the dealer and see what they say, plus I'm going to badger them about that low speed full lock turn noise I keep getting. If anything I'll come out of the dealer with a washed car.
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04-06-2010, 06:12 AM	#44
J08M3 Major General 285 Rep 6,007 Posts Drives: 2011 M3 COUPE Join Date: May 2008 Location: NEW YORK iTrader: (8)	Has anyone found this to be something other than a rock yet? __________________
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