E46 BMW Social Directory E46 FAQ 3-Series Discussion Forums BMW Photo Gallery BMW 3-Series Technical Information E46 Fanatics - The Ultimate BMW Resource BMW Vendors General E46 Forum The Tire Rack's Tire Wheel Forum Forced Induction Forum The Off-Topic The E46 BMW Showroom For Sale, For Trade or Wanting to Buy

Welcome to the E46Fanatics forums. E46Fanatics is the premiere website for BMW 3 series owners around the world with interactive forums, a geographical enthusiast directory, photo galleries, and technical information for BMW enthusiasts.

You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!

If you have any problems with the registration process or your account login, please contact contact us.

Go Back   E46Fanatics > E46 BMW > E46 Xi Forum

E46 Xi Forum
The E46 XI was produced from 01-05 in sedan and touring body styles. Powered by either a 2.5L inline 6 in the 325xi or a 3.0L inline 6 330xi. Discuss all thing about BMW AWD E46 'Xi' here.

Reply
 
Thread Tools Search this Thread Rating: Thread Rating: 1 votes, 5.00 average. Display Modes
Old 01-19-2013, 10:54 AM   #1
caleb6
Registered User
 
Join Date: Jan 2012
Location: Harrisburg, PA
Posts: 390
My Ride: 2005 330XI
vibration with "thump, thump, thump" sound

I've been researching this, but don't seem to see a discussion matching my symptoms. I'm a noob when it comes to car work, but learning fast.

Anyway, on heavy acceleration in 1st, 2nd and sometimes 3rd I get a vibration and sound from what sounds like right underneath the center armrest. It's related to RPM, and comes around 2900'ish and then again at 3700'ish. THere is a very solid rumbling type sound accompanying it.

Like I said, I'm a noob when it comes to this stuff, I'm hoping someone can say oh yea, that your U-joints or something.

thoughts?

Thanks!!

Last edited by caleb6; 01-19-2013 at 10:58 AM.
caleb6 is offline   Reply With Quote
Ads by Google

Guests, get your FREE E46Fanatics.com membership to remove this ad.
Old 01-19-2013, 11:00 AM   #2
E46Moonlight
Registered User
 
Join Date: Oct 2008
Location: Bronx, NY
Posts: 2,592
My Ride: 2000 323i
Search guibo
E46Moonlight is offline   Reply With Quote
Old 01-19-2013, 11:01 AM   #3
caleb6
Registered User
 
Join Date: Jan 2012
Location: Harrisburg, PA
Posts: 390
My Ride: 2005 330XI
Quote:
Originally Posted by E46Moonlight View Post
Search guibo
read all about it, but that's further upfront isn't it? And, mine looks in pretty good shape.
caleb6 is offline   Reply With Quote
Old 01-19-2013, 11:04 AM   #4
caleb6
Registered User
 
Join Date: Jan 2012
Location: Harrisburg, PA
Posts: 390
My Ride: 2005 330XI
Quote:
Originally Posted by E46Moonlight View Post
Search guibo
by the way, what type of AE's do you have, and are they on A/L headlights?
caleb6 is offline   Reply With Quote
Old 01-19-2013, 11:04 AM   #5
E46Moonlight
Registered User
 
Join Date: Oct 2008
Location: Bronx, NY
Posts: 2,592
My Ride: 2000 323i
Then maybe the center support for the driveshaft
E46Moonlight is offline   Reply With Quote
Old 01-19-2013, 11:05 AM   #6
E46Moonlight
Registered User
 
Join Date: Oct 2008
Location: Bronx, NY
Posts: 2,592
My Ride: 2000 323i
Quote:
Originally Posted by caleb6 View Post
by the way, what type of AE's do you have, and are they on A/L headlights?
I have Umnitza Orion V2s one stock bi-Xeon headlights
E46Moonlight is offline   Reply With Quote
Old 01-19-2013, 04:53 PM   #7
Kubica
Registered User
 
Join Date: Apr 2008
Location: Boston
Posts: 4,353
My Ride: 2003 325xi
I would change the transfer case fluid and front diff fluid.

Have a good look at transfer case mount, look for bent wheels, check tire pressures, etc.
Kubica is offline   Reply With Quote
Old 01-20-2013, 02:30 PM   #8
caleb6
Registered User
 
Join Date: Jan 2012
Location: Harrisburg, PA
Posts: 390
My Ride: 2005 330XI
Quote:
Originally Posted by Kubica View Post
I would change the transfer case fluid and front diff fluid.

Have a good look at transfer case mount, look for bent wheels, check tire pressures, etc.
changed all those fluid less then 10,000 miles ago. Wheels are good, and its not tire pressure dependent.

I'm thinking it may be the transfer case rubber buffer, number 2 below. I'm gonna replace it and see




Thanks for the help!

Last edited by caleb6; 01-20-2013 at 02:32 PM.
caleb6 is offline   Reply With Quote
Old 01-20-2013, 02:39 PM   #9
dmax
Registered User
 
dmax's Avatar
 
Join Date: Aug 2006
Location: NJ
Posts: 22,789
My Ride: '99 328i 1.04646 mu
Before you give up on wheels...did you look at them for flat spots? Even if balanced, you can have a flat spot you'd feel. Spin each wheel by hand and look at the rims for a 'hop' indicating flat spot. If you find that up front, move it to the back.

Often times tire balance issues show themselves at a particular speed...and you can often drive up to them and past them without issue...but there will be a range where you'll notice it...and it would vibrate the whole car...so you could think it's coming from anywhere really.

You can see part of the guibo...but if you look closely, see if the metal spacers through the guibo are firmly attached to the rubber. It might look from from the outer edge, but not be where the bolts go through. Take a close picture of it for us.
__________________


Performing at the Comedy Cove--595 Morris Ave. Springfield NJ reservations 973 376-3840

A recent set

dmax on the radio every Wednesday 7-9 p.m. NYC time. Call in! (661) 449-9340 watsonnwatson.com
dmax is offline   Reply With Quote
Old 01-20-2013, 06:40 PM   #10
caleb6
Registered User
 
Join Date: Jan 2012
Location: Harrisburg, PA
Posts: 390
My Ride: 2005 330XI
OK, here are some close ups of the GUIBO:
Attached Thumbnails
Click image for larger version

Name:	2013-01-20_18-59-31_493.jpg
Views:	108
Size:	116.6 KB
ID:	486911   Click image for larger version

Name:	2013-01-20_18-59-39_100.jpg
Views:	106
Size:	103.2 KB
ID:	486912   Click image for larger version

Name:	2013-01-20_19-07-09_206.jpg
Views:	109
Size:	67.2 KB
ID:	486913   Click image for larger version

Name:	2013-01-20_19-07-17_243.jpg
Views:	100
Size:	85.8 KB
ID:	486914  

caleb6 is offline   Reply With Quote
Old 01-20-2013, 06:41 PM   #11
caleb6
Registered User
 
Join Date: Jan 2012
Location: Harrisburg, PA
Posts: 390
My Ride: 2005 330XI
And here is the transfer case buffer I think I will replace:
Attached Thumbnails
Click image for larger version

Name:	2013-01-20_19-07-30_111.jpg
Views:	97
Size:	111.6 KB
ID:	486915   Click image for larger version

Name:	2013-01-20_19-07-36_679.jpg
Views:	107
Size:	84.7 KB
ID:	486916  
caleb6 is offline   Reply With Quote
Old 01-21-2013, 09:49 PM   #12
325xittt
Registered User
 
Join Date: Apr 2010
Location: Reading, PA
Posts: 172
My Ride: 2003, 325 XIT
I'm guessing the center support bearing.
__________________
325xittt is offline   Reply With Quote
Old 01-22-2013, 01:35 AM   #13
caleb6
Registered User
 
Join Date: Jan 2012
Location: Harrisburg, PA
Posts: 390
My Ride: 2005 330XI
Quote:
Originally Posted by 325xittt View Post
I'm guessing the center support bearing.
Are you saying part number 9 below or number 8 which appears to be the carrier AND the bearing as one unit?


Last edited by caleb6; 01-22-2013 at 01:46 AM.
caleb6 is offline   Reply With Quote
Old 01-22-2013, 06:38 AM   #14
325xittt
Registered User
 
Join Date: Apr 2010
Location: Reading, PA
Posts: 172
My Ride: 2003, 325 XIT
I'm guessing its the carrier number 8. The bearing 9 floats in a rubber membrane in the carrier housing. I'm guessing that has deteriorated. Dont forget item 11 a thick sticky gooey double sided tape that helps stabilize the carrier. Also the Bently manual say to pre-load the bearing by sliding it back (?) about 10 mm before tightening the mounting bolts all the way. You should consider replacing item 1 (guido) since it has to be removed to get to the bearing. Match mark your splines at both end before removing the axle. I used a oil filter strap wrench to loosen the item 5 locking collar
__________________
325xittt is offline   Reply With Quote
Old 01-22-2013, 06:54 AM   #15
caleb6
Registered User
 
Join Date: Jan 2012
Location: Harrisburg, PA
Posts: 390
My Ride: 2005 330XI
You did this job already? You're close to me. Maybe a case 'a beer help a brother out deal here? Just someone to stand by and give support, with an educated sense of what it's suppose to go like, would be a huge benefit.
caleb6 is offline   Reply With Quote
Old 01-22-2013, 06:59 AM   #16
Kubica
Registered User
 
Join Date: Apr 2008
Location: Boston
Posts: 4,353
My Ride: 2003 325xi
^the CSB is probably fine. I'm not sure why everyone wants to replace them all of a sudden.

Check to see if the rubber has pulled away from the metal center of the TC mount at all. If so, replace it. The guibo looks fine.

Rotate your tires front to rear and see if anything changes.
Kubica is offline   Reply With Quote
Old 01-22-2013, 07:48 AM   #17
miweber929
Registered User
 
Join Date: Nov 2012
Location: Woodbury, MN
Posts: 91
My Ride: 02 330xi
Quote:
Originally Posted by Kubica View Post
^the CSB is probably fine. I'm not sure why everyone wants to replace them all of a sudden.

Check to see if the rubber has pulled away from the metal center of the TC mount at all. If so, replace it. The guibo looks fine.

Rotate your tires front to rear and see if anything changes.
I' guessing it's because I replaced mine. This forum is the most monkey-see, monkey-doo place I've ever visited; if someone has a P0174 code they think they NEED to replace the DISA because someone mentioned the did that and the code went away so that's the accepted fix now......

OP, the last 2 things Kubica mentioned are probably a bigger factor and a better place to start. The TCB is a PITA to do according to the shop but made the biggest difference in my vibration of the car and overall solid feel. The XI has no other transmission mounts than this, so it's imperative it's tight.
miweber929 is offline   Reply With Quote
Old 01-22-2013, 12:43 PM   #18
caleb6
Registered User
 
Join Date: Jan 2012
Location: Harrisburg, PA
Posts: 390
My Ride: 2005 330XI
Thanks guys. The rubber on the TC mount did look pretty bad internally - cracks and definately "dryed" out looking. I'll look into replacing it (have one ordered already anyway) and rotate the tires and see what that does.

Anything to look out for when replacing that TC mount rubber? Like preloading the CSB to the driveshaft removal type things to watch out for?

Last edited by caleb6; 01-22-2013 at 12:46 PM.
caleb6 is offline   Reply With Quote
Old 01-22-2013, 04:24 PM   #19
ixtoxi
Registered User
 
Join Date: Mar 2006
Location: Park City, Utah
Posts: 1,006
My Ride: 02 330xi, 88 325iX
Have you absolutely ruled-out the CV axles up front? Sometimes it is hard to tell where the vibration is coming from when these are the problem. Does your vibration issue happen when you first start out on a drive, or only after driving for a while?
ixtoxi is offline   Reply With Quote
Old 01-22-2013, 04:41 PM   #20
dmax
Registered User
 
dmax's Avatar
 
Join Date: Aug 2006
Location: NJ
Posts: 22,789
My Ride: '99 328i 1.04646 mu
Why doesn't your guibo have 6 nuts on it? Also the e-bolts you have don't belong on the guibo afaik, but on the other end of driveshaft. But, there should be nuts on each of the bolts. Looks like yours only has 3 nuts on. Did this issue happen after you'd had guibo replaced recently?

Ah, the wrong bolts are too short for you to get nuts on...that's one thing...didn't think that flange was threaded, but it still takes nuts on mine...check realoem for your car and make sure you get that part right.
__________________


Performing at the Comedy Cove--595 Morris Ave. Springfield NJ reservations 973 376-3840

A recent set

dmax on the radio every Wednesday 7-9 p.m. NYC time. Call in! (661) 449-9340 watsonnwatson.com

Last edited by dmax; 01-22-2013 at 04:44 PM.
dmax is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Censor is ON





All times are GMT -5. The time now is 01:47 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
(c) 1999 - 2011 performanceIX Inc - privacy policy - terms of use