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BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > General E90 Sedan / E91 Wagon / E92 Coupe / E93 Cabrio > Why Are My Rear Lights on During Day?



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      06-19-2015, 08:47 AM   #1
BayMoWe335
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Why Are My Rear Lights on During Day?

I recently retrofitted LCI taillights on my 2010 E92.

They look great, but I noticed when my light switch is in the "off" position, my rear taillights are illuminated as they would be while driving at night. I had the parking brake on and the engine running.

This thread says that DRL for the LCI are no longer just halos for the E92.
http://www.e90post.com/forums/showthread.php?t=636963

Does the retrofit with new harness somehow tell the computer to keep the lights on? My pre-LCI lights were always off during the day (with halos on) and would only come on at night with Automatic selected or when I just manually turned the lights on.

I am getting my lights coded, but wondering if I should code that out or just leave it alone. Or is it some kind of error?

I always want my halos on.

Last edited by BayMoWe335; 06-19-2015 at 08:52 AM..
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      06-19-2015, 08:59 AM   #2
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I believe those are your rear DRL. I personally think it looks awesome and would keep it.
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      06-19-2015, 09:18 AM   #3
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Quote:
Originally Posted by TreyTwoEight View Post
I believe those are your rear DRL. I personally think it looks awesome and would keep it.
Thanks. Are they different lights/intensity than what would be on at night?
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      06-19-2015, 09:23 AM   #4
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Quote:
Originally Posted by BayMoWe335 View Post
Thanks. Are they different lights/intensity than what would be on at night?
Not sure, The intensity might be different.
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      06-19-2015, 11:30 AM   #5
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I personally love having the rears on all the time. I've been rear-ended twice in my previuos M3 because I was slowing down going around corners by downshifting my MT and distracted kids hit me because of no brake light.
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      06-19-2015, 11:51 AM   #6
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you can code them out, I used to have mine on
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      06-19-2015, 11:54 AM   #7
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Mine are on. 2008 Pre-LCI with halos as DRL.
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      06-19-2015, 02:19 PM   #8
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Quote:
Originally Posted by techwhiz View Post
Mine are on. 2008 Pre-LCI with halos as DRL.
Interesting. Mine never were on with halos until the new LCI...at least I don't think?
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      06-19-2015, 02:52 PM   #9
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If all connections are per oem it's a matter of coding to have the rear led tubing on as drl. I specifically coded mine to be on.
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      06-19-2015, 03:29 PM   #10
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Mine is also on during daytime by default.
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      06-19-2015, 03:54 PM   #11
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Quote:
Originally Posted by d1saster View Post
If all connections are per oem it's a matter of coding to have the rear led tubing on as drl. I specifically coded mine to be on.
what is the code for that ?
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      06-19-2015, 06:04 PM   #12
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Quote:
Originally Posted by d1saster View Post
If all connections are per oem it's a matter of coding to have the rear led tubing on as drl. I specifically coded mine to be on.
I didn't even code yet and mine are on.
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      06-19-2015, 06:51 PM   #13
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Quote:
Originally Posted by BayMoWe335
Quote:
Originally Posted by techwhiz View Post
Mine are on. 2008 Pre-LCI with halos as DRL.
Interesting. Mine never were on with halos until the new LCI...at least I don't think?
I'm willing to bet they were on.

Every pre lci car I've seen has the rear light DRL.

BMW recently only made the angel eyes DRL and tail lights NOT DRL's when the lci Lights came out around 2011. So people saying that they had them coded to be on have the newer BMW's.

The fact that you changed lights shouldn't have had any effect on whether or not the DRL rear lights are on instead of off. They were likely always on and it was just never noticeable.
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      06-19-2015, 08:11 PM   #14
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They were probably on before, too. As far as I know, the tail lights are on at all times on e92/3s (except 2013 models). Unless you turn off DRLs
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      06-19-2015, 11:28 PM   #15
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Quote:
Originally Posted by techwhiz View Post
Mine are on. 2008 Pre-LCI with halos as DRL.
Even if the halos are your front DRL, you should still have the tail lights on as your rear DRL.
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      06-20-2015, 01:41 AM   #16
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E92/E93 have had rear DRL on by default since they came out. They stopped doing the rear DRL around 2011 or 2012 I think, not sure why. But you can enable or disable the rear DRL with coding.
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      06-20-2015, 08:09 AM   #17
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Quote:
Originally Posted by VTECaddict View Post
E92/E93 have had rear DRL on by default since they came out. They stopped doing the rear DRL around 2011 or 2012 I think, not sure why. But you can enable or disable the rear DRL with coding.
not true. mine 2008 doesnt
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      06-20-2015, 12:27 PM   #18
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Quote:
Originally Posted by Frenk View Post
what is the code for that ?
Module: NFRM (FRM3_E89.C32)
Function: DRL_TFL_MIT_BFD_3R
Value: activ
Description: DAYTIME RUNNING LIGHTS WITH BRAKE FORCE DISPLAY (LED Tubing)

Just to mention this was on 2014 X1 so the function might be different.
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      06-20-2015, 05:28 PM   #19
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I am pretty confused. I just saw another LCI 328i 92 and he definitely had no DRL on his rear lights. It was some old woman, so I'm sure she didn't have it coded.

Come to think of it, I've literally never seen DRL in the rear on any BMW. Are you guys sure?

Anyone have pics during the day as to how this would look? Again, my light switch is position to OFF.
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      06-21-2015, 04:40 PM   #20
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Do you have navigation? If so, you can go to vehicle settings and turn them off.
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      06-21-2015, 05:29 PM   #21
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Quote:
Originally Posted by JeM9 View Post
Do you have navigation? If so, you can go to vehicle settings and turn them off.
No, but even if I did, my understanding is you can't turn them off without also turning off your halos. I want my halos in daytime and nothing in the rear.

I also have the option of turning on/off DRLs but it turns off everything.
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      06-21-2015, 11:50 PM   #22
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Quote:
Originally Posted by BayMoWe335 View Post
I am pretty confused. I just saw another LCI 328i 92 and he definitely had no DRL on his rear lights. It was some old woman, so I'm sure she didn't have it coded.

Come to think of it, I've literally never seen DRL in the rear on any BMW. Are you guys sure?

Anyone have pics during the day as to how this would look? Again, my light switch is position to OFF.
E92 LCI (2011/2012ish) is right when they stopped coding it on from the factory. Your 2010 is pre-LCI for E92.

A lot of times it's not that noticeable anyway since the sun is so bright. You'll mostly notice it when driving through shadows or under an overpass or a gloomy day. It will just look like they have their lights on. The LED tubes and license plate lights will be lit.

The rear DRL was only enabled by default on models with LED light tube tail lamps and xenon headlights with angel eye DRL.
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Last edited by VTECaddict; 06-21-2015 at 11:57 PM..
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