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      03-26-2019, 04:20 PM   #1
Imkarenp
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Drivetrain problem

I'm a new forum member...I have a 2015 i8 with about 7800 miles on it - original owner. Last week, I was driving back to Virginia from Philly and I had a drivetrain issue. The pics attached are the first two errors that I got.

It then told me that it was switching to electric power only and since I had been driving highway for the past 100 miles, quickly died. I was able to get it over to the side of the road and called BMW assistance. As they were dispatching a tow truck, I turned the car off and back on - and was back in business. My question is: is this something any of you have encountered? I equate it to rebooting a computer to get all of the software working together again. And probably the bigger question is whether this is an anomaly or something to take to the dealer. I am no longer under warranty and I'd rather not pay the dealer to run a discovery session if not necessary.

Thanks!
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      03-26-2019, 08:27 PM   #2
BanjoPaterson
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Wow - I haven't seen this. Please post followup!
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      03-27-2019, 10:29 AM   #3
evanevery
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Seems sad your drivetrain would be hobbled because of loss of Regenerative Braking. That's what happened, right?

Particularly ironic if you were limited to ELECTRIC propulsion because of a loss of ELECTRIC Regen!!!
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      03-29-2019, 11:32 AM   #4
buddenfan
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I had this issue happen 2x to me! Unfortunately you have to take it to your nearest service department. Try to secure a loaner as it will take days to fix.
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      03-30-2019, 02:39 PM   #5
Imkarenp
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Drivetrain and service center

Quote:
Originally Posted by buddenfan View Post
I had this issue happen 2x to me! Unfortunately you have to take it to your nearest service department. Try to secure a loaner as it will take days to fix.
What did they do to fix it? Is this a software issue?
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      04-05-2019, 05:37 PM   #6
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Quote:
Originally Posted by buddenfan View Post
I had this issue happen 2x to me! Unfortunately you have to take it to your nearest service department. Try to secure a loaner as it will take days to fix.
Can you please give some more information what was identified and fixed?
That would certainly help the questioner and future affected very much.
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      04-23-2019, 03:05 AM   #7
Imkarenp
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So after this happened a second time, I took the car to the dealership. They ran diagnostics and found a fault in the lean mixture. They reprogrammed and changed the oil. I'm not sure if this fixed the car as a non-negative does not make a positive - time will tell.
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      04-23-2019, 08:32 AM   #8
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Quote:
Originally Posted by Imkarenp View Post
So after this happened a second time, I took the car to the dealership. They ran diagnostics and found a fault in the lean mixture. They reprogrammed and changed the oil. I'm not sure if this fixed the car as a non-negative does not make a positive - time will tell.
That makes absolutely no sense.
Changing the oil and adjusting the mixture (O2 sensor) canít fix a regenerative braking issue.
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