View Poll Results: Have your M2C rear indicator units failed? | |||
Yes | 136 | 63.85% | |
No | 77 | 36.15% | |
Voters: 213. You may not vote on this poll |
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03-19-2020, 02:54 PM | #23 |
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Wtf, I just realized, they had a stop sale on my car when I bought it because of this. I bought it off the lot and it had 124 miles, and I guess this had shown up already.
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03-19-2020, 03:40 PM | #24 | |
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LED runs on a lower polarity than incandescent, for which the "bulb checks" was originally designed for, so the system is going to assume an error when LEDs are operational, since it's drawing a lower amperage. I have a sneaking suspicion because BMW left on the hot bulb check (for God knows why : ) for the LED turn signal and the lack of ground is causing the turn signal to assume an error. Folks that did the LCI taillight swap is going to go by the DIY instructions and code out the hot and cold bulb checks, hence, no rapid flashing turn signal error. BTW, I to have a pre-LCI with LED taillights and never received a turn signal error but I did double up on two separate ground polarity wires, just for good measure. https://www.newtis.info/tisv2/a/en/f...outer/4LACTpNd |
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03-19-2020, 04:02 PM | #25 | |
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03-19-2020, 04:06 PM | #26 | ||
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I mean, there must be a logical explanation for this fault but I'm merely just a guy making an educated guess based on the facts and it won't cost anything to give it a shot, if you already paid for the Bimmercode APP. I hope I win a prize if I'm right.. |
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03-19-2020, 04:12 PM | #27 | |||
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03-19-2020, 04:21 PM | #28 | ||||
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One of you guys with a Competition and the Bimmercode APP should verify if the hot bulb check is on for the turn signals.. If it is active, I reckon that's the root cause of your issue.. |
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03-19-2020, 05:07 PM | #29 | |||||
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03-19-2020, 07:10 PM | #30 |
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The error has been intermittent. My dealer was able to get an error code readout on the error. My problem was in the wiring harness and I haven’t had a problem since they fixed the harness.
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03-20-2020, 11:58 PM | #32 |
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04-06-2020, 02:23 PM | #34 |
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Just inactivated the brake light warm monitoring for my 2019 M2C. Will see how this goes in the next few weeks.
Funny thing is that I noticed light warm monitoring is disabled for all other lights while the brake light is the only one comes with it active... |
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04-06-2020, 02:32 PM | #35 | |
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I believe It's listed under "blinken".. I'm like 90% sure that specifically removing the warm check for the turn signals will eliminate any potential errors. |
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04-06-2020, 03:25 PM | #36 | ||
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04-06-2020, 03:30 PM | #37 | |||
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That's odd, that the technical manual states that it's in an "active" state for LEDs, which led to my speculation.. I guess my theory on the error just went out the window... |
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04-06-2020, 06:24 PM | #38 |
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Have we pinned down which cars are affected?
Mine is a MY2020 with Production Start Date of 3/9/2019 To be clear, I have NOT experienced this issue. |
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04-06-2020, 08:32 PM | #39 |
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Not all M2s have this problem. It first showed up on the LCI M2 but also was seen on 3 and 4 series LCI cars. There is a service bulletin on this problem but I don’t think any customer has seen it. My M2 had the problem and it was determined to be a wiring harness problem. I haven’t had a problem since they fixed it. Supposedly the bulletin said to look at the wiring harness first.
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04-06-2020, 09:32 PM | #40 | |
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I had someone check, nothing.. https://www.newtis.info/tisv2/a/en/f...ess/1VnZ8zZX2B |
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07-16-2020, 01:19 PM | #41 |
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Rear turn indicator failure
A quick update, it's been more than 3 months after I inactivated the brake light warm monitoring. Magically the rear turn indicator hasn't failed not even for once.
I'm not sure if this has permanently solved the issue but so far looks like it works out. |
07-16-2020, 03:08 PM | #42 |
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Anyone had this problem with the 2020 car? I know the 2019 and the 2020 had different taillights, but I wonder if they swapped out more than just the lenses?
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07-16-2020, 03:28 PM | #43 | |
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The root cause of this rapid flashing issue was not addressed.. |
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