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X6 E71 / E72 (2008 - current)
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  #1  
Old 07-16-2014, 06:08 PM
Eldumas11 Eldumas11 is offline
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Location: Georgia
 
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Mein Auto: BMW X6 50i
Driveshaft Failure

Anyone experience a driveshaft or transfer case failure on their X6? I have a 2011 X6 50i 80k miles and as i was driving yesterday i noticed a subtle humming sound from the front passenger side. I took a quick look at the tire and underneath to see if i saw something out of the ordinary, nothing. As i continued to drive the humming went to a loud thumping noise as if i ran over something. I got out and saw oil pouring from underneath. Had the X6 towed to my garage. I have not had the time to lift it and start investigating, just wanted to see if anyone experienced this situation before. I do mostly highway driving and of course at high speeds. I towed my 2500lbs boat once for a total of 1/4 miles. Im thinking towing the boat is what did it since that was the most recent event i can factor.

Last edited by Eldumas11; 07-16-2014 at 06:09 PM.
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Old 07-23-2014, 04:54 PM
jackyfrombmauto jackyfrombmauto is offline
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Mein Auto:
Hi, i think some of your mounting part is pressuring your driveshaft. I did have a experience with x5 that the engine mounting is break and the mounting bracket lean again the driveshaft and the driveshaft break apart. Please make sure you check underneath properly, see the mounting part.


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Old 08-11-2014, 08:18 PM
Eldumas11 Eldumas11 is offline
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Location: Georgia
 
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Mein Auto: BMW X6 50i
After all is said and done, found out that the u joint on the front drive shaft failed and caused the drive shaft to puncture a hole in my upper oil pan. Replaced the drive shaft (propeller driveshaft on ebay) and weld repaired the oil pan ( a lot cheaper and faster than replacing it). So far so good. Will reinspect at 1000 miles and again at every oil change. I highly doubt it was due to me towing my boat as i previously indicated, the drive shafts have a history of premature failure, but bmw has yet covered all of the affected vehicles in the recall. They said mine was not covered, but yet it failed at 80k miles.
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