F22 lci taillight signal problem

34yof99 · 11-19-2024, 08:19 AM

I have LCI taillights on my F22. Here's the problem: when I use the turn signals, they light up dimly. If I tap lightly on the taillights, they go back to normal, but after a short time, the issue comes back. Has anyone else experienced this problem? If so, is there any solution for it?

34yof99 · 11-22-2024, 06:59 AM

!

Kernel Kurtz · 11-22-2024, 03:38 PM

Taillights are a common issue on these cars. Does your problem throw a code or error on the dash? Usually it does. On cars with incandescent bulbs the culprit is likely a bad ground, you can find lots of discussion as well as fixes around these forums. If you have the LED lights replacing the module seems to be the usual fix, but I'd check the wiring for obvious defects in that case anyway.

34yof99 · 11-23-2024, 03:29 AM

I have the same issue with both my right and left taillights. My taillights are LED, meaning they are from the LCI model. There doesn’t seem to be any problem with the sockets or wiring connections. I think the issue might be inside the taillights themselves. Does anyone have a solution for this?

34yof99 · 11-25-2024, 07:14 AM

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TrboMike · 11-26-2024, 11:04 AM

Sounds like a short. Did you remove taillight and check out the connector?

34yof99 · 11-27-2024, 03:14 AM

Quote:

Originally Posted by TrboMike

Sounds like a short. Did you remove taillight and check out the connector?

Yes, I checked the connectors, there is no problem. I think the problem is in the solders inside the taillights.

arkadzik94 · 11-27-2024, 05:56 AM

Can u give me coding what u used?
I had same problem when i coded wrong. When i corrected all was fine

Give me link with codes and try to check all points. After work i'll give u my coding lines.

34yof99 · 11-29-2024, 05:38 AM

Quote:

Originally Posted by arkadzik94

Can u give me coding what u used?
I had same problem when i coded wrong. When i corrected all was fine

Give me link with codes and try to check all points. After work i'll give u my coding lines.

I used it with my own coding for about 1 - 1.5 years, and there were no issues. If you share your codes with me again, I would like to check them against my own.

34yof99 · 12-15-2024, 05:55 AM

.

bmw_fascinated · 10-24-2025, 03:35 AM

had a similar issue. At least in my case it turned out to be a bad connection of the pcb connectors inside the tail light. Cutting it open and sealing it was not the most pleasant work, but I got it working again - at least till now

Check out this thread:
https://f87.bimmerpost.com/forums/sh...925029&page=11

Kernel Kurtz · 10-25-2025, 12:26 PM

I see I posted in this thread last year. I also had the right rear turn signal malfunction error very intermittently almost from new. Just recently they replaced the REM as it showed evidence of water ingress into the connectors there. According to my SA BMW is aware this is a known problem with this model of car. This repair was also carried out after my warranty expired because they were aware of the issue before that, so it is possible your dealer might do a goodwill repair if they have worked on this issue previously without success. It has only been 6 weeks so it might be premature to call it fixed, but before this repair it was becoming more frequent so I'm hopeful this issue is done with. Just FYI.

11-19-2024, 08:19 AM	#1
34yof99 Enlisted Member 0 Rep 34 Posts Drives: 220D (F22) 320i (f30) Join Date: Sep 2021 Location: Istanbul iTrader: (0)	F22 lci taillight signal problem I have LCI taillights on my F22. Here's the problem: when I use the turn signals, they light up dimly. If I tap lightly on the taillights, they go back to normal, but after a short time, the issue comes back. Has anyone else experienced this problem? If so, is there any solution for it?
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11-22-2024, 06:59 AM	#2
34yof99 Enlisted Member 0 Rep 34 Posts Drives: 220D (F22) 320i (f30) Join Date: Sep 2021 Location: Istanbul iTrader: (0)	!
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11-22-2024, 03:38 PM	#3
Kernel Kurtz Major 431 Rep 1,286 Posts Drives: 2020 M240i xDrive Join Date: Sep 2007 Location: Winnipeg, Canada iTrader: (0)	Taillights are a common issue on these cars. Does your problem throw a code or error on the dash? Usually it does. On cars with incandescent bulbs the culprit is likely a bad ground, you can find lots of discussion as well as fixes around these forums. If you have the LED lights replacing the module seems to be the usual fix, but I'd check the wiring for obvious defects in that case anyway.
	Appreciate 0 Quote

11-23-2024, 03:29 AM	#4
34yof99 Enlisted Member 0 Rep 34 Posts Drives: 220D (F22) 320i (f30) Join Date: Sep 2021 Location: Istanbul iTrader: (0)	I have the same issue with both my right and left taillights. My taillights are LED, meaning they are from the LCI model. There doesn’t seem to be any problem with the sockets or wiring connections. I think the issue might be inside the taillights themselves. Does anyone have a solution for this?
	Appreciate 0 Quote

11-25-2024, 07:14 AM	#5
34yof99 Enlisted Member 0 Rep 34 Posts Drives: 220D (F22) 320i (f30) Join Date: Sep 2021 Location: Istanbul iTrader: (0)	.
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11-26-2024, 11:04 AM	#6
TrboMike Lieutenant 180 Rep 422 Posts Drives: BMW M240ix Join Date: Sep 2019 Location: 07508 iTrader: (0)	Sounds like a short. Did you remove taillight and check out the connector?
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11-27-2024, 05:56 AM	#8
arkadzik94 Registered 0 Rep 4 Posts Drives: f22 Join Date: Nov 2024 Location: Poland iTrader: (0)	Can u give me coding what u used? I had same problem when i coded wrong. When i corrected all was fine Give me link with codes and try to check all points. After work i'll give u my coding lines.
	Appreciate 0 Quote

12-15-2024, 05:55 AM	#10
34yof99 Enlisted Member 0 Rep 34 Posts Drives: 220D (F22) 320i (f30) Join Date: Sep 2021 Location: Istanbul iTrader: (0)	.
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10-24-2025, 03:35 AM	#11
bmw_fascinated Private First Class 31 Rep 104 Posts Drives: F22 228i Join Date: Sep 2013 Location: Germany iTrader: (0)	had a similar issue. At least in my case it turned out to be a bad connection of the pcb connectors inside the tail light. Cutting it open and sealing it was not the most pleasant work, but I got it working again - at least till now Check out this thread: https://f87.bimmerpost.com/forums/sh...925029&page=11
	Appreciate 0 Quote

10-25-2025, 12:26 PM	#12
Kernel Kurtz Major 431 Rep 1,286 Posts Drives: 2020 M240i xDrive Join Date: Sep 2007 Location: Winnipeg, Canada iTrader: (0)	I see I posted in this thread last year. I also had the right rear turn signal malfunction error very intermittently almost from new. Just recently they replaced the REM as it showed evidence of water ingress into the connectors there. According to my SA BMW is aware this is a known problem with this model of car. This repair was also carried out after my warranty expired because they were aware of the issue before that, so it is possible your dealer might do a goodwill repair if they have worked on this issue previously without success. It has only been 6 weeks so it might be premature to call it fixed, but before this repair it was becoming more frequent so I'm hopeful this issue is done with. Just FYI.
	Appreciate 0 Quote