Okay, finished installing the new harness. Performed Throttle Body reset procedure. During the procedure, the AWD and DSC warning message decided to display on the screen. The one that states: "4x4 system and DSC have malfunctioned. Limited driving stability. Drive moderately. Have the system checked by your nearest BMW center."

First thought was "CRAP!!!" Decided to go ahead and start it to move it from the driveway and prepare to scan again to see if all of the errors were back. Started and the active steering initializing message appears so I turn the wheels to the left, then right and back to center. Message goes away. Have two additional messages on the OBC (1. time date error from having battery disconnected and 2. low washer fluid) so I decide to correct those two real quick and shut off the X5.

After I reset the time/date and put in washer fluid (couldn't do blinker fluid cause mine was expired LOL) and started her up again. Lo and behold the AWD/DSC message is gone, throttle response is actually better than ever and seems to maybe be the fix I needed. Only drove a couple of miles, but still need to go through the test of driving to work and coming home in my commuter stop and go traffic.

In the mornings I don't have any traffic to speak of and can be at 70 to 80 the whole way into work. But on the way home, a good 10 to 25 miles of my 39-mile trip is stop and go. That is when it would go into limp mode, about 25 minuted into stop and go traffic. Fortunately, I have my diagnostic cable in this X5 and my laptop has ISTA/D and ISTA/P so I can scan and/or reset on the side of the freeway.

Not my favorite way to commute, but it'll do for the moment. Again, I hope this was the fix and I can then just clean her up and sell her.

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'01 740i Sport MKIV, Quad Brake Lights, Bi-Xenon retrofit, HID Fogs Dinan 7 Struts, Springs, camber plates, Intake, MAF, CAI, Throttle Body, NBT Retrofit, Strong Strut


'99 318ti Titanium Silver; '97 318ti Boston Green; '13 X5 3.5i Saphire Black Metallic
'84 633csi Black (sold); '88 325iC Black (sold); '97 740iL Black(sold); '01 740iS Black (sold);'97 318ti White (sold); '08 X5 4.8i Titanium Silver (sold); '96 318ti Alaska Blue (sold)