HERE IS A VIDEO OF THE NOISEHTTPWWW

  • Tiny
  • Anonymous
  • 2004 BMW 330
  • 92,000 miles

Here is a video of the noise
http://www.youtube.com/watch?v=f_tnQRQt6BI


I just got I just bought a 04 BMW E46 330i with the sport package from a little pot lot. It sounded alright when we got it but then it makes this wobble rotating slapping noise only at idle and when I rev the engine it goes away. When I put my foot on the brake and give it gas it goes away. I have been told that it could be a loose timing chain. It doesn't sound anything like vanos rattle. the noise diminishes quite a bit. Also the engine does not make the sound right at start up usually when it gets to normal operating temperature does it start making this noise.

Things I have already checked or changed

-DISA
-Idler Pulley
-tentioner pulley
-Water pump
-thermostat
-radiator flush but not the engine block flush
- changed the oil
- belts and pulley all are good
- fan clutch seems to check out fine
- I have heard it could be vanos seals but that is a different rattle from what I can hear.
- doesn't knock with acceleration so don't think it is the rod knock
Category:
Autos & Vehicles
License:
Creative Commons Attribution license (reuse allowed)

Saturday, October 27th, 2012 AT 11:45 AM

1 Answer

  • Tiny
  • Dr. Hagerty
  • Expert
  • 9,705 posts

Bad Youtube link

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Monday, October 29th, 2012 AT 4:37 AM

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