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#11
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The AWD system does not work like a 4x4 system with a locking differential...nor does it work like the facelift e53 X5 and all other "X" BMWs that have xDrive: (ignore the text that is highlighted...that was done for a reply a long time ago...but do focus on how DSC functions if the front axle was to be experiencing slip...and how DSC would brake the front and allow the rear to spin)
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Last edited by Qsilver7; 01-22-2019 at 06:49 PM. |
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#12
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Quote:
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#13
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Bummer...was an easy (although not cheap) fix.
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#14
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I have no idea what the issue is... I jacked it up (even though I was already 100% sure none of the front wheels have power) and I was proven correct. No power to the front wheels.
From what Research I’ve done all e53’s have a yaw sensor. Even my 540 does.
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2003 x5. 4.4 2003 540i M-tech Last edited by Bull907; 01-23-2019 at 01:08 AM. |
#15
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Well if you jacked it up and there is no power to front wheels and that is by LOOKING at the front driveshaft (runs from transfer case to the front differential) and see the front driveshaft not turning when in gear and the back wheels are turning then you for sure have a bad transfer case.
This can be stripped gears or a broken chain. You will have to remove the transfer case and open it to see what the cause it. They are super simple to rebuild.
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#16
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As for sensors and the like there are no sensors involved in the front driveshaft turning. Its a simple mechanical setup. The reason it gets lost in the "how it works" stuff has to do with the way bmw uses the brakes to stop a wheel from slipping by applying the brakes to that wheel.
But the actual driving of the wheels is old school mechanical stuff. No sensors involved and no computer stuff involved on the original setup. The 2004 and later models have xdrive. THAT has computer involvement. But yours doesn't.
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Just BMW's - All cars and trucks was two pages long 1994 318is 1997 528i 2000 323i 2001 X5 3.0 auto 2005 X5 3.0 auto 2011 535xi auto 2013 X5 xdrive35 Turbo More are at my website Aftermarket E53 Radio Install |
#17
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What do you mean if? The front driveshaft turns. I’ll just post a link to a video
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#18
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Easy now. We are only trying to help. Your previous post didn't say anything about the front driveshaft turning.
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#19
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Crowz was clarifying as to the no power. If front wheels aren't turning it could be an issue at the front differential. Front DS to diff or diff to cvc, but if DS isn't turning then it's at transfer case (hence placing eyes on shaft vs. wheels)
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#20
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Yep on both of the aboves.
Just because the wheels are not turning isn't all of it. By eyeballing the front driveshaft directly like mentioned it will determine for sure its the transfer case. Just using the wheels as a test spot leaving other things out of the equation like a broke cv joint, stripped differential, etc. By eyeballing the front driveshaft and knowing its not turning when the rear wheels are turning lets you KNOW its the transfer case and not something else.
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Just BMW's - All cars and trucks was two pages long 1994 318is 1997 528i 2000 323i 2001 X5 3.0 auto 2005 X5 3.0 auto 2011 535xi auto 2013 X5 xdrive35 Turbo More are at my website Aftermarket E53 Radio Install |
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4x4, all wheel drive, awd, transfer case, xwd |
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