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  #21  
Old 05-19-2017, 11:13 AM
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My situation slightly different. 2008 x5 4.8i

Is it an option I don't have? When I look in idrive ("i"/settings/vehicle-tires/door locks) there is no "tailgate" option like my manual suggests. Thanks in advance!
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  #22  
Old 05-19-2017, 11:43 AM
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look at the struts that hold your liftgate - if they are thin and have no wires going into them, you got regular struts. If they are BEEFED up, and have a small cable going into each one, then you got power liftgate.
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E53 X5 4.6iS
147K mi - Sold May 2013
Tireprints left in:
USA, Nicaragua, Costa Rica, Panama, Russia

E53 X5 4.8iS built 2005-10-17
66200 mi - June 2012
96000 mi - June 2013
112000 mi - June 2014
OEM fire extinguisher
OE first aid kit
OE tow hitch
OE TV module
OE aspheric mirror
K&N air filter
black/white badges
rear camera
4-channel video recorder

Here is the list of things I have done to the X
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  #23  
Old 05-19-2017, 12:05 PM
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Quote:
Originally Posted by BMWdiy View Post
Thanks for your quick response! I am currently waiting for the usb scan cables to arrive and will scan the car with inpa. I know my issue is somewhat different from the one you had and dealer told me that i need one or both power lifts replaced...i just refuse to believe it. It doesnt make sense to me. I can close the tailgate with the button once and opens every time. Functions like it should until the upper tailgate lock locks onto something. Then no more closing with any button.
Another thing i noticed is that i dont get a trunk open light on the dash...Ever... Maybe the car thinks that the trunk is closed? Can it be that it is why he trunk tries to go up when i press the close button?
Mistery to me still butt hopefully not for too long. I will get to the end of it,no giving up
it feels like hall sensors are not reporting correctly. the hall sensors tell the brain when to stop, and if the gate is open or closed. if a sensor is not reporting, or reporting intermittently then the system may get confused.

From what i remember, the hall sensors are inside the spindles, they are not on the gate or gate frame (not like a security sensor "bug" on a house door).

Check for chaffed cabling going to each of the strut - they are inside a grommet, and you might need to pry the rubber grommet out to see if the wires inside lost any insulation. also, if you "knead" the wire bundle with your fingers, check to see if the light comes on the dash for the tailgate - it may point to a chaffed wire.

There is also the brain for this operation, i think somewhere in the trunk packets...


these types of problems are the worst to trace but it gives you a starting point.

Keep us posted
__________________
E53 X5 4.6iS
147K mi - Sold May 2013
Tireprints left in:
USA, Nicaragua, Costa Rica, Panama, Russia

E53 X5 4.8iS built 2005-10-17
66200 mi - June 2012
96000 mi - June 2013
112000 mi - June 2014
OEM fire extinguisher
OE first aid kit
OE tow hitch
OE TV module
OE aspheric mirror
K&N air filter
black/white badges
rear camera
4-channel video recorder

Here is the list of things I have done to the X
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  #24  
Old 05-19-2017, 12:22 PM
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Quote:
Originally Posted by TerminatorX5 View Post
look at the struts that hold your liftgate - if they are thin and have no wires going into them, you got regular struts. If they are BEEFED up, and have a small cable going into each one, then you got power liftgate.
Hanks for the quick response! So if the wiring or brain is bad, should it keep it from acknowledging the tailgate options in iDrive?

I do have very beefy struts, will look for wires tonight, will also investigate whether it could be a fuse issue
__________________
'08 X5 4.8i
'98 328iC 5spd
'95 540i 6spd
'89 325i 5spd
'89 535i 5spd
'87 325e 5spd
'73 2002 4spd
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  #25  
Old 05-19-2017, 12:37 PM
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if the brain is dead, the GM has no idea that there is a power liftgate (option appears when module is present). On the newer (post i-Bus) cars, sometimes the GM needs to be pre-told about some modules in order to recognize them, it is done in the programming files. But, if you had the power liftgate from the factory, you can run your VIN on bmwvin.com and see if it was equipped so from the factory, regardless of wires or no wires (things might have been changed by previous owner, if you are not the original one)
__________________
E53 X5 4.6iS
147K mi - Sold May 2013
Tireprints left in:
USA, Nicaragua, Costa Rica, Panama, Russia

E53 X5 4.8iS built 2005-10-17
66200 mi - June 2012
96000 mi - June 2013
112000 mi - June 2014
OEM fire extinguisher
OE first aid kit
OE tow hitch
OE TV module
OE aspheric mirror
K&N air filter
black/white badges
rear camera
4-channel video recorder

Here is the list of things I have done to the X
Reply With Quote
  #26  
Old 05-19-2017, 04:34 PM
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Location: Upstate of SC
Posts: 32
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There is no 40a fuse in slot 99, so I'm thinking there is no automatic liftgate
__________________
'08 X5 4.8i
'98 328iC 5spd
'95 540i 6spd
'89 325i 5spd
'89 535i 5spd
'87 325e 5spd
'73 2002 4spd
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