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///M3 Forum
The BMW E46 ///M3 is the M version E46 and puts out an amazing 333 HP and 262 lb-ft of torque at stock specs! There are an amazing amount of modifications for both the coupe and convertible models so read up and get started modifying your cars today!

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Old 05-04-2013, 03:36 PM   #1
e46forthewin
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Join Date: Apr 2012
Location: Janesville, WI
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My Ride: 2002 M3 SMG
Marbles Grinding Noise in transmission bellhousing area

Default Marbles Grinding Noise in transmission bellhousing area
It always seems like one thing after another... 2 weeks ago the starter went out on my car and today I finally got the new (rebuilt Valeo) installed. I put the car completely back together and now I have 2 seemingly separate issues. The car through the code 1637 which is related to TPS so after some research I ordered a new front side TPS and am waiting for that yet, but now the car seems to be making a very concerning marbles grinding type of noise coming most loudly from the 2 inspection holes where the transmission mounts to the engine. The car did not make such noises prior to the new starter being installed. Seems to loud to be purely coincidental... perhaps a bearing noise? Any productive thoughts/comments are appreciated! I attached a short video. I also confirmed its not exhaust bolt/broken donut.






Last edited by e46forthewin; 05-04-2013 at 03:38 PM.
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Old 05-04-2013, 09:18 PM   #2
$ilent ///M
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My Ride: 03.5 M3 smg lsb
Sounds like the throw out bearing is seized and came apart spinning its ball bearings in the housing.
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Old 05-04-2013, 09:20 PM   #3
e46forthewin
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That was my first thought as well, but it still seems to drive and shift fine and the noise goes away from time to time as well. Very strange.
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Old 05-05-2013, 08:27 PM   #4
$ilent ///M
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That's what mine did when clutch engaged noise would go away but when at idle and when gear shifts that split second the clutch is disengaged you could here it.
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Old 05-05-2013, 10:30 PM   #5
e46forthewin
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How immediately does it require service? I will probably undertake the job myself and do clutch and all that while I'm in there.
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Old 05-07-2013, 12:04 AM   #6
$ilent ///M
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If it was seized like mine I wouldn't go too long as it will be riding the clutch and flywheel. causing premature wear on the flywheel. which you shouldn't have to change if its the first time clutch is being replaced. I went about 2 weeks driving 60 miles and day mostly highway until all the parts came in. I have about 165k + on original clutch and flywheel. my flywheel was still good and still had a little more life on the clutch.
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