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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 09-19-2013, 12:30 PM   #1
///M3murray
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E46 M3 rear clunking noise please help!!!!!!

Can anybody tell me what this is! Could it be the rear subframe?!!!

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Old 09-19-2013, 12:46 PM   #2
cold m3
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Old 09-19-2013, 01:02 PM   #3
///M3murray
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Thank you, is there anyway to post a vid on here straight from your i device ? So I can show you a vid of the clunk
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Old 09-19-2013, 01:04 PM   #4
choxor
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Some clunk is normal. If you're worried that it may be the sub frame get it on a lift and have it inspected. Highly doubt we'll be able to tell anything from a cell phone video.

There are also updated differential bolts that reduce the clunk.
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Old 09-19-2013, 01:08 PM   #5
///M3murray
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Thank you
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Old 09-19-2013, 01:12 PM   #6
steven808
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Re: E46 M3 rear clunking noise please help!!!!!!

I can't see your video, but I think I'm having similar problems right now too. I had a huge loud "clunk" sound too when I'd let off the gas. I have smg, not sure if that makes a difference.
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Old 09-19-2013, 01:21 PM   #7
///M3murray
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I have smg as well, it's almost like a rattle from the rear suspension and I only noticed it when I pulled into garage, but how can I post a video on here?
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Old 09-19-2013, 01:27 PM   #8
///M3murray
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Old 09-19-2013, 01:40 PM   #9
taylor192
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Just take it to a shop. For $50-100 they'll inspect the suspension and subframe and give you a real answer rather than people guessing from videos.
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Old 09-19-2013, 02:16 PM   #10
///M3murray
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Thanks everybody , it is the diff bushings
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Old 09-22-2013, 04:04 PM   #11
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Re: E46 M3 rear clunking noise please help!!!!!!

Its the cv joint on the back of the driveshaft it's worn you have to replace the whole driveshaft cause you can't get that separate.

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Old 10-04-2013, 05:04 PM   #12
PITT M3 RR
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Good lord don't jack your car up on the differential fins. use the subframe just in front of it. Youll crack the cooling fins right off!
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UUC SSK / AFE STG1 Intake / AKG Red Motor mounts / AKG Red Tranny mounts / AKG Red Subframe bushings / AKG Red Differential bushings / AKG Red RTABS / TMS Subframe reinforcement / Custom in trunk subframe structural brace / Bilstein PSS10's / Ground control camber plates / Turner RSM
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