BMW Alsway has an excuse

[nra4.8is]

Ok what long test are you referring to? A draw test..? BMW equipment is more than capable to do an extended draw test and record all results for hours or days if need be. The power management control unit does all of this and keeps running records of all events/ closed circuit infringement violations. So why is BMW going to perform a draw test, waste tech time for something they can see with a scan of the vehicle. And as far as keep locking and unlocking the doors supposed dealer excuse, the control unit that controls these functions is the jbe. I have replaced jbe's before but never for sporadic self locking of even failed locking/unlocking all together. So stop sitting on your keys while sitting on the couch!!!

[Penguin]

Originally Posted by nra4.8is

The power management control unit does all of this and keeps running records of all events/ closed circuit infringement violations.

It certainly is suppose to. But obviously, many of these system do not work as designed. And lazy technicians have become slaves to what ever the computer readout tells them.

Case in point. On the way to the dealer I got a red message on the i-drive screen which said something to the effect of "Major Electrical System failure. Continued operation not possible. Pull to side of road and contact service center." So I began to pull to the side of the road and within 10 seconds the message disappeared. A check of the "Check Control" section of the i-drive said, "All System OK." Had a check engine light, but as it was yellow, not red, I continued to the dealer and left the vehicle. Call later in the day had the technician saying that there was nothing stored in the memory about an electrical system failure.

So no, I do not believe the BMW computer is either perfect, or that it has a perfect memory.

And, I might add, if a lengthy parasitic drain test to look for modules not going to sleep is so unnecessary, since the power management computer notes everything, why does BMW have such a test procedure in their documentation?

Think.

[Penguin]

Originally Posted by nra4.8is

So stop sitting on your keys while sitting on the couch!!!

Here's an update...

To refresh, the tech earlier said I was opening the doors/tailgate/hood to much and ran down the battery, and it just needed a recharge. I insisted they test the battery, while the tech was adamant that there was nothing wrong and I was opening things too much.

Here's what the tech later wrote on the invoice after completing the service:

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Checked fault code memory and performed energy diagnosis. Energy diagnosis says to recharge battery, however tester states to replace battery.
Performed battery test. Battery failed.
Replaced vehicle battery and left feedback to BMW to correct test plan.
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After putting the new battery in, the tech tried to reprogram for the AGM battery (black case from original white case.) It wouldn't complete programming and indicated the tailgate module was defective (remember, I brought it it with a non-functioning tailgate as well). Tech wrote on invoice:

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"Found HKL submerged in water while inspecting wiring."
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Water tested and determined leak was likely due to manufacturing flaw in trunk lid gasket. Replaced module and truck lid gasket.

Tech says earlier information about locking and unlocking too often likely false information caused by HKL module being submerged in water and sending false signals/not going to sleep, e.g., vehicle may have been unlocking and locking rear hatch while parked or simply sending signals keep vehicle awake.

So two conclusions: (1) I guess I wasn't sitting on my keys on the couch.... and (2) blindly believing the vehicle computer over the customer's information isn't always the correct course of action.