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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 08-18-2014, 01:03 PM   #1
TL97
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Join Date: Aug 2014
Location: Apex, NC
Posts: 5
My Ride: 02 325xi
New to me Xi

Hey guys,

Just picked up my first E46 coming from an 88 E30 w/420k miles(DD work car) and still running but wanted something newer so i bought an 02 325xi 5-speed with 66k miles. Has the cold weather package and sport package.

I have some questions and have been searching but my results always come back inconclusive.

Here is where I am at:

1. I have a low pitched whine at above 45mph(could be lower but i cant hear it) when in 5 gear applying very lite gas. The noise goes away with moderate gas or no gas at all. I read that it could be the center support bearing and that it needs to be insulated, but also read that 02 models already have the insulation. Is this correct?

2. When shifting gears and letting out the clutch there is a slight "thud" sound from the rear like i just dropped the clutch. I read that this could be a bushing but the weird this is that it doesn't happen every time. Its just random.

That is it for now. Any insight would be appreciated.
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Old 08-18-2014, 01:07 PM   #2
TL97
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Join Date: Aug 2014
Location: Apex, NC
Posts: 5
My Ride: 02 325xi
3. When I get to about 55mps there is a vibration like a out of balance tire but the steering wheel does not shake like usual, also when around 70mph you can hear the droning sound but still no vibration, Wheel bearing?
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Old 08-19-2014, 01:24 PM   #3
md584
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Join Date: Jul 2014
Location: NJ
Posts: 3
My Ride: 2002 BMW 325xi
That thud in #2 for me is the transfer case having play in the input shaft connection. My bmw dealer mechanic and I are looking for ways to rebuild these suckers cheap b/c I bought a used one that looked good but almost all have the same problem. They used to sell rebuild kits for them. I took mine apart and I wouldn't worry much about it doesn't seem like it will break too easy, unless you're going to the track or something...
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