View Single Post
      05-30-2008, 12:40 PM   #1
MDCTFTW
Lieutenant Colonel
123
Rep
1,973
Posts

Drives: E92 DCT
Join Date: Apr 2008
Location: Norcal

iTrader: (0)

Exclamation HELP: Does your M sound like this at idle? (video inside)

I'm a little paranoid about the way my car idles. After the car is warmed up I notice a few things when I'm at a stop light:

1) I get a ever so light shake in the car (very faint)
2) I get a sort of gurgle or something. It doesn't start right away when I stop and disappears after I drive. This is the one I'm a bit worried about because I don't recall hearing this during earlier miles.

Maybe I'll try to post a vid. Thoughts?

EDIT: Ok ... here's a video on youtube. To really hear the noise you probably need to use headphones. The noise I'm concerned about isn't the engine rumble or the few tick tack noises, but there's also a noise that's sort of like fingers drumming on a tupperware container or something. This video was after the car was warm. I can hear it in the cabin, but it is much more faint than it is with the hood open. The noise isn't there when the engine is cold, but it starts shortly after driving a bit. Can you let me know if ...

a) you hear it in the video and
b) if your M makes this noise also (I think it's easiest to hear it near the intake side of the engine bay)

Much thanks!

[u2b]<object width="425" height="355"><param name="movie" value="http://www.youtube.com/v/fyH3Pwl-wGw&hl=en"></param><param name="wmode" value="transparent"></param><embed src="http://www.youtube.com/v/fyH3Pwl-wGw&hl=en" type="application/x-shockwave-flash" wmode="transparent" width="425" height="355"></embed></object>[/u2b]

Here's one from inside the cabin after the car has been driven around town for 20 min. This one is really faint and you definitely need headphones to hear it. The engine noise is more distinct, but further into the vid the tupperware noise can be heard. At least my oil level is good after 500 miles. Haha.

[u2b]<object width="425" height="355"><param name="movie" value="http://www.youtube.com/v/pCHHMmagVW4&hl=en"></param><param name="wmode" value="transparent"></param><embed src="http://www.youtube.com/v/pCHHMmagVW4&hl=en" type="application/x-shockwave-flash" wmode="transparent" width="425" height="355"></embed></object>[/u2b]


UPDATE 5/31:
I drove 40 miles to my dealer today because I figured my CA would be cool and really help me try to figure it out. When I got there I pooped my hood and a bunch of service guys were listening for it. We could all hear it pretty audibly. Like GT3Tim said ... the engine is so new that nobody had any idea what is was so all we could do is pull up another M and see if the noise was there.

Took a while for the new M to warm up, but sure enough when it did we could hear the same noise. The only difference was that on the new M it wasn't as prominent. The head service guy said to keep an ear out to see if it gets worse and bring it in if it does.
__________________


MDCT ... so you can drive and eat a hamburger at the same time.

Last edited by MDCTFTW; 06-01-2008 at 02:25 PM..
Appreciate 0