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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 06-26-2014, 04:42 PM   #21
Sammysaba
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Quote:
Originally Posted by Alex323Ci View Post
well i can't tell from your video but if it's making the noise as it "squats" from the torque and acceleration then it could be the RSMs. if they allow it to squat so much and hit tires or other compaonents it could certainly be the case. more likely RSMs banging in the convertible storage tray area. so in reality it's not a "speed" thing but a shifting of weight thing from power from shifting up. and then lack of shifting of weight at highway speeds. but if you hit bumps at highway speeds it should be making noises and feel loose then too.



again if the RSMs and shocks are shot replace those as it could certainly be the fix needed. if not, you needed to replace anyway and one more thing taken out of the possible issues.

That's my current plan my koni's should be coming tomorrow and I am going to replace the shock mounts with them. As per the shifting of the weight it seems like you are 100% correct about that. I had somebody drive my car by me yesterday and the torque does cause the car to squat enough that it could be rubbing. Hopefully the new shocks and mounts will help this problem. Otherwise I am going to be doing my rtab as well
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Old 06-27-2014, 03:38 PM   #22
Sammysaba
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Changed the rear shocks to my koni still having the problem.
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Old 06-30-2014, 03:07 PM   #23
Sammysaba
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I'm happy to report that i have solved my problem turns out my driveshaft coupler and mid driveshaft coupler were totally shot Click image for larger version

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THANK YOU ALL FOR YOUR HELP! It was much appreciated
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Old 06-30-2014, 05:44 PM   #24
SKR7
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wow, thats the worst guibo I've seen. Great that you've fixed it though.
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Old 07-02-2014, 04:20 PM   #25
Alex323Ci
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wow that guibo and center support bearing were thrashed. those should have given a pronounced vibration under the seat and center tunnel. sorry we didn't diagnosis this, happy you found the issue. Bet she drives like new now

hopefully no damage to the driveshaft. justs a heads-up. make sure the installer marks the driveshaft splines to match up as they're balanced. also too often people don't align the guibo arrows to the flanges, leading to premature failure of new guibo.
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Old 07-02-2014, 05:04 PM   #26
Teslazerok
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Jesus. That thing was about to tear apart completely.
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Old 07-03-2014, 03:56 PM   #27
M3Froi
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Dang that guibo is thrashed let alone a totally non functional CSB, how many miles is your car at??
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Old 07-03-2014, 05:18 PM   #28
Sammysaba
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Yea very very bad my car hit 100,500 miles this week. It was such a tough feeling to describe I guess it was so easy to overlook what it was. I'm honestly just happy I found it and happy that I decided to do my shocks. While I was under the car with my mechanic I was walking around and that's how we caught it. I would've had no idea.


But honestly the car rides beautifully now with the koni's and the new guibo really changed the car.
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