Ok this is nothing special,,,but it’s a new design,,,this is a new transfer case and a picture of the drive shaft going to the front differential ,,,,you see how there is a universal joint at the transfer case that’s the new design,,,,the old design had a slip joint that slide into the transfer case.
See how the flange is pulled out when the front driveshaft is bolted on.
Here is the driveshaft instillation position,,,the flange just pushes into the transfer case so you can install the front driveshaft .
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vic san on N20 vanos unit broken Mark on N55 intake camshaft beari… JC on F30 A/C noise Jordan on New B engine mechanical water… jmiddle204 on X3 4×4 transfer case
bmwtechnician 
Andreas, I was wondering if you’ve seen any f25’s with leaking transfer cases and what was the cause? I have 2014 x3 N20 with 53k miles on it. Since it’s still under CPO till 12/19 I wanted to check undercarriage for any visible issues and found that my TC is pretty moist and also saw some motor oil seepage from the area where motor connects to the transmission. Not much but I really didn’t like it since oil pen gasket looked dry all around.
Took it to my dealer and was told that CPO doesn’t cover seepage….. I’m really ………upset mildly talking. Possible N20 chain issues and now this crap at 53k is just…..
I’d appreciate any suggestions, comments, etc. I do have a few pictures if you’d have time to look at.
Thanks,
Stan
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Yes pictures would help,,,,yea BMW and seepage sucks
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IMG_4832.jpg
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IMG_4837.jpg
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Sorry I can not open pictures
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Strange. Anyone should be able to see those by clicking on the link
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This link..
https://drive.google.com/drive/folders/1-mNoxQhF0CToGTmAdXNDC9mmAZnBgG6e
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Thanks for the pictures that link worked,,,,ok the leak on the transfer case is coming from the transfer case halves,,,,,the only way to fix that leak is replace the whole transfer case,,,,or if you can find someone to split it open and seal the transfer case,,,the leak at the oil pan corner I would worry about it that leak it’s that bad right now.
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Thanks a lot for you help. The leak from the engine is not so bad at this point I agree but when it will get worse it seems like transmission would have to be dropped to fix that. Am I wrong?
And the transfer case itself is about $2.5k just for the part.
I’d like to go back to my dealer and try to get at least TC replaced under cop. I really think it’s a bunch of …… in regards of CPO not covering seepage…. In real life why anybody should go under the car to check how bad the leakage is every so often…?:) And if I will wait till BMW agrees that it’s a leak not a seepage it will definitely be after CPO runs out or TC would crap out….
Would you recommend anything for my next visit to BMW? They did tell me that the put a dye into engine and TC. I haven’t checked it yet myself but it’s been only about 200 miles since they’ve done it. Thanks again for you help!!
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Also have them check the motor mounts,,,usually the passenger side collapses first.,,,good luck on transfer case
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Thank you
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Sorry. I’m doing something wrong. How do you attach yours?
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Try this please.
https://drive.google.com/drive/folders/1-mNoxQhF0CToGTmAdXNDC9mmAZnBgG6e?usp=sharing
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