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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 01-05-2018, 01:23 PM   #81
332
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I didn't make it, but I could. I want this part out of my garage!
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Old 09-20-2018, 01:06 PM   #82
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Are you guys doing this conversion on xdrive cars or on pre-2003 awd models from BMW? As from how I understand it on the E53 X5s, BMW used a more mechanical awd system up until 2003. I've seen a lot of post-2004/facelift guys doing the RWD conversions, but that's going to be a given, since there are many more examples of those out there.
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Old 10-12-2018, 08:38 PM   #83
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I have been playing around with this for several months in my spare time.
The ring gear assembly can be easily removed- pull the output flange (3-arm puller), than the seal, and lastly a snap ring and put that half of the TC on a shop press and it came right out.

Unfortunately I found this out much too late. While I was welding the gears it must have gotten too hot or too much spatter because it would not turn smoothly anymore.
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Old 10-12-2018, 08:55 PM   #84
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Old 11-11-2018, 04:01 PM   #85
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Iím looking for a transfer case for a 2005 330xi. Anybody in norther California, or willing to ship to 95666?


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Old 01-19-2019, 07:15 PM   #86
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Here we go...round 2. I snagged another TC and have it apart on the bench.

Ive been thinking....why not pull the gear off in red if it has no use once the ring & planets are welded? Its held in with the same "constant section" ring as the ring gear is.

Also...isn't it still putting 60% of the power to the front drive even though theres nothing technically being driven w/ no front drive shaft?
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Old 01-28-2019, 10:25 AM   #87
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Trying something a little different.
This has a root and cap at each of the 3 sections.
The ring & carrier are hardened so it had to get pretty hot to get good penetration.



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Old 06-22-2019, 05:27 AM   #88
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I am thinking about trying this on my 330xi Touring.

I already have a spare TC lying around and I can't get red of the clunk in my drivetrain. (I suspect the TC as being responsible for the clunking as almost everything else is changed on the drivetrain and suspension).

Before I try this Mod I would appreciate if the ones that have already done this could post their long term experiences.
I am particually interested in the behavior of the DSC system after this mod, does it cause complications when the front drive shaft is disconnected during normal and/or "hard" driving ?
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Old 06-24-2019, 09:05 PM   #89
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Yes....even if I lean in hard on a highway on/off ramp with DSC on it will flash & interfere.
Other than that, no DSC issues.
Turn it off and it does not interfere.
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Old 11-24-2019, 05:22 AM   #90
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I did it!

I did it!

I converted my 330xi to RWD 2 days ago by welding the planetary gears inside of the transfer case as described in this awesome Thread!

The TC opens pretty easily by removing all the surrounding bolts, I did not try to remove the bearing to the rear-output shaft because I was pretty sure that by doing that I will destroy this bearing. So it got welded inside of the TC, I did my best to cover the holes and other bearings with aluminiumfoil so no welding-splatters could get in there. Nevertheless after welding I had to clean out the TC thoroughly and still found quite some splatters in there, hoping I got everything out before sealing and putting together the TC and refill it with oil again.

After 2 days of driving I can say that I am pretty happy with the result of this mod. The awefull drivetrain-clunk which I have been trying to get rid of the last 2 years is finally gone, From this I conclude that the play in the transfercase, especially the play in the planetary gearwheels add up with the play in the others gears and bearings of the TC and were the cause of this problem.

Wonder how much play these NV-124 transfercases had when they were new from the factory.

I as well changed the clutch and the dual-mass-flywheel on my car which was a pretty P.I.T.A.-job because I had to remove the gearbox but thats a diffenent story.

Only the results count and the result of this RWD-conversion together with the new clutch and flywheel is that my car drives like a BMW should drive again, awesome, very happy with it. I never wanted a AWD e46 anyways...

DSC:
During normal or even "sporty" driving there are no issues with the DSC kicking-in so far, only when
accelerating out of tight curves the DSC smoothly intervenes, this can be turned of by manually pressing the DSC button.

Is there is a known possibility to get the DSC working like a RWD car ?


Special thanks to Manchicle (is he still around here ? ) who came up with this idea and all the others who contributed here.
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Old Today, 01:06 PM   #91
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I want a locking center diff. Open for 92% of the time, push the button, lock the center for when there's real snow down.

BMW's computers just don't know how to drive in sloppy, goopy, deeper snow where wheelspin is a tool, not a problem.

But then, I would also want a mechanical LSD, because having the computer pull the throttle to prevent wheelspin is just not cool.

t
has welded diffs before. Wouldn't do it on the street.
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