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General E46 Forum
This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

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Old 03-22-2008, 11:14 AM   #1
lilstevo900k
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Join Date: Jan 2008
Location: New Jersey
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My Ride: 2001 330xi
odd vibration

Around 79 mph, 2600 ish rpms i think? the car has a pretty noticable vibration. There is a low rumbling sound, and the entire car, not just the wheel or the gas, shakes. It happens at the high speed (maybe just more noticable, i dont know, 90% of my driving is city) at exactly that rpm. Take my foot off the gas for going downhill and maintaining speed, it goes away. Apply pressure, and it comes back. Because of this, i figured balance or alignment issues arent the problem. Besides this, im semi-lost on what this could be.

Any ideas? Thanks
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Old 03-22-2008, 11:56 AM   #2
Fly Guy
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I have the same problems. Is the the control arms? Mine is really felt by the front passenger side.
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Old 03-22-2008, 12:01 PM   #3
numba1guju
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balancing...i just got rid of my shake...and if you have bigger wheels on your car and you have bad camber in front your tires wear uneven so it causes the rumble/shake at high speeds of 60-80...at least thats what the guy at discount tire said...i felt my tires so im pretty sure what he said is right
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Old 03-22-2008, 12:38 PM   #4
lilstevo900k
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it seems to have too many things related to engine speed to be a balance issue..maybe?
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Old 03-22-2008, 01:34 PM   #5
jsonli
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differential? just a shot in the dark i really don't know.

did you look into the xi specific issues?
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Old 03-22-2008, 04:45 PM   #6
lilstevo900k
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Quote:
Originally Posted by jsonli View Post
did you look into the xi specific issues?
could not even find a close choice to help explain the problem,
if it even is a problem....?
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Old 03-22-2008, 08:52 PM   #7
Topshelf
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Do you have an xi? If so, it's your front inner CV joint. Most likely the drivers side. Not sure what causes it, but the grease in there has broken down and after 10-15 minutes of driving it will start a horrible vibration when on the gas. Pull over for 20 minutes and you're good for another 15. Some people have had luck by repacking the joint. It did solve my issue for a week, but I think I got there too late and the damage is done. I re-repacked mine today, if that doesn't take care of it, time for a new axle. Anyway, if you want to repack the CV joint, you'll need a 4" clamp, and 1 3/4" clamp I think and about 6 oz. of CV grease...most just use a high quality bearing grease if you can't find it. Cut the clamps off, slide the boot back and watch the old grease just pour out. Clean it as best as you can and then pack the new grease as far in as possible. Oh, get a box of disposable gloves, it's a messy job. Only takes 20 minutes though. Good luck.
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Old 03-24-2008, 04:44 PM   #8
lilstevo900k
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visually inspected the boots and did an ever so precise once over with my hand, looks fine.

ive had a similar problem on a very dissimilar thing (dirtbike).
engine mount?
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Old 03-24-2008, 07:38 PM   #9
Colin Hughes
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xi vibration

Could be the front drive shafts. We have a 2002 325xi and had a major shake on acceleration, let off on the gas it was fine. There was a lot of play where the shaft meets the cv joint. Found a place on Ebay (FP Groton?)that sells complete drive shafts with a lifetime warranty for under $200 each. Dropped two new shafts in and the car drives like a breeze. Lots of stuff in these forums on x'ers vibrations.
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Old 03-27-2008, 12:26 PM   #10
jodiannsb
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Let me tell you what happened to ours...same issue.. Replaced rack and pinion, then power steering pump, then new tires, then had it aligned. STILL NO LUCK...finally noticed that the right brake caliper seemed to be sticking, bought and replaced it and noticed the rotor was warped. ALL FINE NOW. I was told to replace the Control Arm, but we sent those back and got our money back, as the caliper has solved the problem....GOOD LUCK TO YOU,,,,It is a known issue.....and everyone has a different opinion, however ours worked!!!!!
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