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Xoutpost server transfer and maintenance is occurring.... |
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#1
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Anyone noticed Their X5 has multiple personalities?
I have never noticed this with the other BMW's I've owned, just this one. Even the 528....its just under 90k and been exactly the same since the day I bought it 5 years ago with 12k miles.
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2010 X5 3.0 X-drive Titanium Silver/Black 2018 Ford F-150 Platinum Crew 2010 528xi (His) 2017 M2 Manual (His) Former Headaches: 2008 X5 RIP 2015 M235 2013 135is 2009 535xi Wagon (JUNK) 2007 530xi 6spd CPO Sport (Best Damn Car EVER) 2011 335xi M-sport Coupe 6spd (Sex on Wheels) 2010 550GT "CPO" (Junk) 2012 X5 35d "CPO" (More Junk) 2004 330i ZHP Sedan 2002 325xi Wagon 2000 323i Sedan 1998 M3 Sedan 1992 325i Sedan |
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#2
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I was having similar issues for the past month or two - turns how my red boost hose clamp and come undo - fixed that and now it rips again.
Just a note made - check the red boost hose and look for vacuum line issues. |
#3
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did you get any codes while the hose was off?
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2011 35d |
#4
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No codes - you can just feel the difference. Not as aggressive as the truck normally is
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#5
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I am not a twin turbo model. I am however searching for a vacuum leak.
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2010 X5 3.0 X-drive Titanium Silver/Black 2018 Ford F-150 Platinum Crew 2010 528xi (His) 2017 M2 Manual (His) Former Headaches: 2008 X5 RIP 2015 M235 2013 135is 2009 535xi Wagon (JUNK) 2007 530xi 6spd CPO Sport (Best Damn Car EVER) 2011 335xi M-sport Coupe 6spd (Sex on Wheels) 2010 550GT "CPO" (Junk) 2012 X5 35d "CPO" (More Junk) 2004 330i ZHP Sedan 2002 325xi Wagon 2000 323i Sedan 1998 M3 Sedan 1992 325i Sedan |
#6
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I find the automatic 4x4 system is one of several things that make performance and smoothness inconsistent. Each time you start your X5, the transfer case calibrates the clutches that send power to the front axle. In my opinion, the degree of lock up of the clutches varies each time you restart the vehicle. If the clutches lock up more than expected, the drive train will bind up a small amount which can add drag. The ECU senses this and then tells the engine to limit torque. If the clutches get bad enough, you actually will get jerking and rough shifts.
As a test disconnect your transfer case at the module. Pre LCI put this in the back by the battery. Remove the cover on your battery and you will see a silver box with ATC700 on it. Unplug and go for a drive. Be careful as stability control and ABS are disabled.
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2009 35d, 2006 325i & 330i |
#7
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Interesting. Is the clutch calibration the only 'electronic' function that the transfer case does? In other words,
Does disconnecting that module ONLY impact the clutch calibration and nothing else?
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2012 e70 X5 50i MSport "The Boss" black on black *Well Optioned* |
#8
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I asked my dealer that very question and they were unsure of the answer. Disconnecting the transfer case also disables the stability control and ABS so there could be other affects.
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2009 35d, 2006 325i & 330i |
#9
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Quote:
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