AWD and DSC malfunction, Engine malfunction, DBC malfunction

[m5james]

This fix your issues, BoostedX5M. I'm gonna pull my glove box for shits and giggles seeing as the throttle body harness sounds 4.8i specific but this wiring issue is likely E70 generic and I'm not gonna wait until BMW figures out common errors across multiple platforms can happen, ie N54 and S63 injectors are the same, fuel pumps, etc etc but since there's fewer X's (and even fewer X5M's) on the road vs 3's that we get the tail end of these SIB's.

[BoostedX5M]

Originally Posted by m5james

This fix your issues, BoostedX5M. I'm gonna pull my glove box for shits and giggles seeing as the throttle body harness sounds 4.8i specific but this wiring issue is likely E70 generic and I'm not gonna wait until BMW figures out common errors across multiple platforms can happen, ie N54 and S63 injectors are the same, fuel pumps, etc etc but since there's fewer X's (and even fewer X5M's) on the road vs 3's that we get the tail end of these SIB's.

Here is one TSB. It’s not the original TSB, as the original has the throttle body wiring you mentioned.

Here’s another one I found.. https://bmw-worldzz.blogspot.com/201...nical_210.html



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[m5james]

I'm not seeing a PDF but between your pics and link, I'm just gonna pull it when I get home. On a side note, how'd you find this...I've Googled so much god damn stuff lately and haven't seen this site. I wish we had access to BMW's "info only" data collection since I'm sure they get a ton of stuff before they decide what fuckups they're gonna own up to.

[BoostedX5M]

Originally Posted by m5james

I'm not seeing a PDF but between your pics and link, I'm just gonna pull it when I get home. On a side note, how'd you find this...I've Googled so much god damn stuff lately and haven't seen this site. I wish we had access to BMW's "info only" data collection since I'm sure they get a ton of stuff before they decide what fuckups they're gonna own up to.

I can’t find that PDF either, and I searched for days...

Ha. I think the Service Bulletins are on www.newtis.info but they are impossible to find. I don’t know if its fixed anything because I haven’t been driving it lately enough to trip that dumb 5DEA code. I think after reading a few more things... I’m strongly considering replacing the actuator on the transfer case. Have you tried simply unplugging the plug to the transfer case actuator? To see if anything changes! (Note: If you do you will get a abs light and lose abs-from what I have read, but it won’t hurt anything, it just can’t engage xdrive) That’s how many trouble shoot the transfer case. That have issues like yours. Look in X3 and X5 forums. X3s seem to have major issues like we’re having with transfer cases. From what I’ve read. It’s the following typically:
Speed sensor(or wiring)
Plastic gears in actuator
Actuator
Actuator resistor(Which needs to be coded if replaced-but this seems very rare)
The steering chock(in steering column)-Which also needs adaptations

Best way to test is if there’s a way to read values while driving. Like software people use with a laptop to read...
I.e. Speed sensors, actuate the actuator, etc...

Oh, I also plan to test the power and ground wires at the VTG(Transfer Case module) and actuator to make sure there isn’t any voltage drop, as I’ve read both are super sensitive to voltage drops... Might just clean up the connections and hound to be safe too...


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[GStatsE70]

I had the same exact issue and it ended up being a missing Transfer Case module(By the Battery) and The previous owner had the windshield replaced, so for some reason, the ECU had been replaced but never reprogrammed to the truck.

Now I have a loud fan, but i beleive the issue is with my thermostat.

[BoostedX5M]

Originally Posted by GStatsE70

I had the same exact issue and it ended up being a missing Transfer Case module(By the Battery) and The previous owner had the windshield replaced, so for some reason, the ECU had been replaced but never reprogrammed to the truck.

Now I have a loud fan, but i beleive the issue is with my thermostat.

The transfer-case module was was missing or was never programmed? I’m not sure I understand.

Ohh, the front windshield was replaced and the ecu got wet(?) and the transfer case wasn’t programmed in properly(?), so it was missing in the ecu programming(?)


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[ard]

Yet, very confusing....






On the fan running... thermostat? or water pump?



Do your research.... 99 times out of 100 it will be the pump.



Actually, maybe 100

[JamnX5]

I have 09 4.8. The SA states that have the approval to replace the wiring harness. The throttle body/wire harness has been replaced. Battery is brand new. I guess it could be alternator, but you would think they would have ruled it out. Another X5 was in for the same thing and BMWNA suggested the wiring harness replacement. The other vehicle is ok now. I should have the vehicle back by Tuesday. I keep you all posted.

[ard]

Originally Posted by JamnX5

the wiring harness.

Which wiring harness?!?!

You posted earlier about a harness replacement.... but others have posted the harness fixed their issue. Will this be a second and different harness they are replacing?

When they call with info, dont feel intimidated - ASK 'what is the part number, what is the SIB'. When the jerkwad SA says "I dont have that in front of me" say "No worries, I'll wait".

[JamnX5]

Good point ard. I think he said the main wiring harness. Not sure... The throttle wire harness/body was replaced a couple of weeks ago. The SA stated they had the approval from BMWNA to replace. This was an odd statement?? My vehicle is still under factory extended CPO warranty. I'll post Tuesday when I get the vehicle back..I hope.