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E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.


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Old Tue, May-02-2017, 04:56:37 AM   #1
moreisbetter
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Default Help me find what this noise is

This developed today under normal freeway driving. Hoping for the best but prepared for the worse. 2004 SMG. Drives and sound normal till 0-5mph. When stationary, goes away with gas and goes away in between nuetral and 1st gear shifts. Oil levels are normal. One thing that i noticed is that my down shift paddle has recently stopped working intermittently and now it doesnt seem to respond anymore(not sure when it decided to give up all together). Replaced salmon relay with backup an no changes

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Old Tue, May-02-2017, 05:08:12 AM   #2
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Default Re: Help me find what this noise is

Does it jack hammer when you first hit unlock or open a door without any ignition? Or can you hear the pump prime as normal?
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Old Tue, May-02-2017, 05:13:28 AM   #3
moreisbetter
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Default Re: Help me find what this noise is

It primes like normal
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Old Thu, May-04-2017, 10:16:08 PM   #4
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Default Re: Help me find what this noise is

Update. The last few days it has been quiet. Its still there, but quiet and not as loud as the day I posted the video. Found a video with the exact same sound here.



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Old Sun, Jan-20-2019, 07:46:55 AM   #5
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Default Re: Help me find what this noise is

Hi,
I have the same problem.
Do you fix it? How?
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Old Mon, Jan-21-2019, 05:54:14 PM   #6
moreisbetter
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Default Re: Help me find what this noise is

It was the flywheel pressure plate mechanism that broke. The clutch was worn and needed to be replaced too, which exacerbate the problem. It goes away when the clutch is engaged because while the clutch is engaged, nothing is moving around. When the clutch is not engaged, things were free to move around and what you are hearing is the banging of metal components in the transmission.
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Old Thu, Jan-24-2019, 05:46:51 AM   #7
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Default Re: Help me find what this noise is

@moreisbetter
Thank you for your precise reply.
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Discussing CMP Auto Engineering subframe kit in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)