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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.

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Old 01-02-2013, 10:24 PM   #1
miweber929
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Join Date: Nov 2012
Location: Woodbury, MN
Posts: 91
My Ride: 02 330xi
Transfer case replacement

Anyone replace a transfer case in their XI themselves? Or have an idea on how long it takes to do?

Shop is telling me my new whining/squealing issue that appears either at low speeds or constantly at 45 mph is coming from the transfer case. We're going to replace fluid to see if it helps, but I'm thinking its not a d am looking at replacements.

Weird thing is the noise started almost immediately after they replaced the CSB. They are positive they couldn't have done anything to cause a misalignment or anything when they replaced it a d the transfer case bushing. Their feeling is now that its all solid, the whine is resonating.

Any other ideas?
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Old 01-02-2013, 10:41 PM   #2
Kubica
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Join Date: Apr 2008
Location: Boston
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My Ride: 2003 325xi
Wait you changed the driveshaft bearing before changing TC and diff fluids? Could be just low on front diff fluid.

For the TC removal, remove exhaust, lower the TC, support tranny, unbolt TC. Prob 3-4 hours shop time.
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Old 01-03-2013, 07:34 AM   #3
miweber929
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Location: Woodbury, MN
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My Ride: 02 330xi
Quote:
Originally Posted by Kubica View Post
Wait you changed the driveshaft bearing before changing TC and diff fluids? Could be just low on front diff fluid.

For the TC removal, remove exhaust, lower the TC, support tranny, unbolt TC. Prob 3-4 hours shop time.
Driveshaft bearing along with the TC bushing were changed for other issues, the TC noise just started after the other work was complete. The thought between the shop and me is the bushing went bad, making the drivetrain move around, took out the CSB by placing extra stress on it then stressing the TC after both those wore. Now that everything is tight and lined up TC and driveshaft wise the strangely worn gears in the TC are howling.

Ok, 3-4 hours isn't bad, found a couple local used TC's in the $250 range so it'll be just about $750 or so.
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Old 01-03-2013, 05:38 PM   #4
SamDoe1
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Location: Minnesnowta
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^ Why not DIY this? It's pretty straightforward.

Also, do you have a manual? If yes, take this wonderful opportunity to change your shifter bushing.
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Old 01-03-2013, 09:06 PM   #5
miweber929
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Join Date: Nov 2012
Location: Woodbury, MN
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My Ride: 02 330xi
Quote:
Originally Posted by SamDoe1 View Post
^ Why not DIY this? It's pretty straightforward.

Also, do you have a manual? If yes, take this wonderful opportunity to change your shifter bushing.
I might do end up doing this myself, my biggest issue, though is getting the car high enough to get under it. Might have to invest in ramps.....

Mine is an automatic, is there still a shifter bushing to replace? Think its time I need to invest in a manual as well.

Edit: manual ordered a few minutes ago.

Last edited by miweber929; 01-03-2013 at 09:57 PM.
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