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      03-03-2021, 12:03 AM   #1
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DIY: F90 / G30 LCI Tail Lights Retrofit

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In my guide I will be installing USA/Canadian spec Red Tail Lights on USA/Canadian spec car. North American spec cars have 4 pins on inner trunk lid tail lights, while the rest of the world has 5.

Due to North American cars operating on 4 pins, you will NOT need to run 2 extra wires to the passenger footwell BDC, as that's what you might have seen in other guides out of Europe, or Asia.
(Btw running to BDC is a proper OEM way, but you can just do a shortcut, by running a wire from the inner lights, and tapping to the outer lights).

Let's Begin:

Parts that you will need:
I've bought all my parts from an eBay seller Euroactive. Shipping was fast and they replied to msgs almost instantly. Do recommend!

- Outer Left tail light: 63218493813
- Outer Right tail light: 63218493814
- Inner Left tail light on the trunk: 63218493819
- Inner Right tail light on the trunk: 63218493820

- Trim panel water channel Drip rail Left: 63218493821
- Trim panel water channel Drip rail Right: 63218493822
- Tail light finisher, trunk lid, Left: 51499448943
- Tail light finisher, trunk lid, Right: 51499448944



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Tools that you will need:
- Tack Lifter screwdriver
- Plastic panel removal tool
- Ratchet with 10mm socket
- 1.2mm flat head screwdriver

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Lets begin on inner trunk lid tail lights:

With trunk open start by removing 8 Expanding rivets:

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Unlock the bracket for Warning Triangle. Remove the bracket by unlocking 2 clips:

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With the panel removal tool, unclip and then disconnect the trunk lid opening/closing controls:

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Remove the 2 hinge covers, they are held by 1 hidden clip, 1 visible Expanding rivet, and 2 locks:

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Pull the Felt liner towards you, and then there will be 4 more hidden clips towards the edge of the trunk:

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Remove the 2 covers on the side of the trunk (they cover the side of the lights. Start from the bottom, and work your way up to the clip:

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Unplug the inner tail lights, and remove the 3 10mm Hex nuts on each. Carefully replace with LCI tail lights:

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Now we need to re-arrange the pins on the inner tail light connectors.

Unlock the clip on the side of the connector:

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To release each one of the wires from the connector, insert the small screwdriver into the smaller hole to release the pin lock:

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Here is the way the connectors should look like:

Original Left connector:
Pin 1: Blue/red stripe
Pin2: Empty
Pin3: Brown
Pin4: Yellow/Black stripe
Pin5: Empty
Pin6: Yellow/Brown Stripe

Original Right connector:
Pin1: Blue/White stripe
Pin2: Empty
Pin3: Brown
Pin4: Yellow
Pin5: Empty
Pin6: Blue/Black Stripe

Re-arranged Left connector for LCI tail lights:

Pin 1: Empty
Pin2: Yellow/Brown Stripe
Pin3: Yellow/Black stripe
Pin4: Empty
Pin5: Blue/red stripe
Pin6: Brown

Re-arranged Right connector for LCI tail lights:

Pin1: Empty
Pin2: Blue/Black Stripe
Pin3: Yellow
Pin4: Empty
Pin5: Blue/White stripe
Pin6: Brown

Now let's get to the outer tail lights.

Pull back the weather stripping, and remove the drip rails on both sides. Start from the windshield and work your way down. The drip rails are held on 2 clips:

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Lift up the carpet and remove from the car:

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Remove 4 Expandable rivet clips from the Loading Sill cover:

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Pull back the weather stripping around the Sill cover and lift it up. It has another 4 hidden metal clips holding it:

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On each side of the trunk, remove 3 Expandable rivet clips:

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On each side, release the round clip around the hinges and lift it up and away:

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Now you can carefully move the trunk trim to the side on both sides, to get to the outer tail light 10mm Hex nut and the connector. Remove the nut and unplug the connector:

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Remove 2 more 10mm Hex nuts on both outer tail lights:

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Now you can install LCI outer tail lights instead, and secure them with the same 10mm Hex nuts.

On outer tail lights, you do not need to do any rearrangements of the pins. They are plug-and-play.

CODING:

I didn't do coding myself. I used Vick from fb.com/bimmercoder or www.bimmercoder.com . His whatsup: +60 12-396 9654 I highly recommend him.

From my understanding nobody has reported on getting these USA red lights to work properly on USA cars before me. We spent hours and hours with different variations. My lights finally work 100% function wise, and no errors: Turn signals, brakes, running lights, hazards, LED reverse lights, all work.

What is NOT working, are the Welcome Lights (the lights that go ON for the first 15 seconds when you unlock your car). Those i had to turn off in my iDrive settings, otherwise they can cause issues if you start your car before they go off.

Hopefully somebody will figure out the Welcome Lights, and I will update this guide. So far from what I've seen, installers/coders in USA are all struggling to get those to work.

Here are the final results:

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Here is also a video of how they are functioning:




I hope this guide will be helpful to others! Please let me know if you have any questions.

Thank you.

Last edited by euro*; 03-03-2021 at 02:21 PM..
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      03-03-2021, 03:26 AM   #2
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Thanks a lot bud.
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      03-03-2021, 06:44 AM   #3
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Spot on instructions as I completed the retrofit with wiring help from Euro and achieved the same results with coder. Excellent work with the write up.

So the coder has some ideas and would like to confirm the wiring on North American cars at the BDC. Could someone open theirs up and confirm the following?

Open connector 5B and check for wire colors at pin 41 and 33? and also at connector 3B for wire colors at pin 50 and 38?
Attached Images
 

Last edited by CarFreak; 03-03-2021 at 07:48 AM..
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      03-03-2021, 07:33 AM   #4
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good detailed write up, i paid a coder to do mine...looked too complex lol, i however get zero issues with my welcome lights? but such a good mod on pre lci.
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      03-03-2021, 07:38 AM   #5
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i know in uk we have the slim yellow indicator on ours rather than flashing brake light for turn signal, dunno if that is why i dont get any issues?? ps they dont pulse, its just video speed on bad camera
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      03-03-2021, 08:27 AM   #6
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Quote:
Originally Posted by euro* View Post
I hope this guide will be helpful to others! Please let me know if you have any questions.

Thank you.
Damn! Like leeadam I was intimidated to tackle the possible wiring complications, but now with your wonderfully detailed instructions Ive found a way to spend more money on the car! Thanks for the posting. The new lights add a nice touch I think.
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      03-03-2021, 10:25 AM   #7
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Coding

Add HO-WORD:
HELC

Default write appropriate modules (BDC, HU_MGU, etc)
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      03-03-2021, 10:34 AM   #8
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Quote:
Originally Posted by SG_E90 View Post
Coding

Add HO-WORD:
HELC

Default write appropriate modules (BDC, HU_MGU, etc)
Have you tried this and have it working?
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      03-03-2021, 01:56 PM   #9
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I thought I was done modding my car until I saw this
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      03-03-2021, 02:17 PM   #10
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Quote:
Originally Posted by leeadam View Post
i know in uk we have the slim yellow indicator on ours rather than flashing brake light for turn signal, dunno if that is why i dont get any issues?? ps they dont pulse, its just video speed on bad camera
Yeah lights are programmed to work differently in USA due to regulations. Different sequence for turn signals and brake lights.

With European lights there will be no welcome light issues.
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      03-03-2021, 02:19 PM   #11
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Quote:
Originally Posted by Used2be View Post
Damn! Like leeadam I was intimidated to tackle the possible wiring complications, but now with your wonderfully detailed instructions Ive found a way to spend more money on the car! Thanks for the posting. The new lights add a nice touch I think.
You are welcome! They definitely freshen up the look

Quote:
Originally Posted by YanoM5 View Post
I thought I was done modding my car until I saw this
Haha. So far im really enjoying this mod, and I'm sure you will too
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      03-03-2021, 02:42 PM   #12
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Awesome write up! This is like a M3 forum now with a proper DIY!

Question about Euro vs American lights. If we used the euro lights would wiring and coding be the same? Would be nice to know the differences if anyone here knows them.

My car is green so yellow/amber blinker lights are more appealing to me.
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      03-03-2021, 05:29 PM   #13
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Quote:
Originally Posted by m5 guy View Post
Awesome write up! This is like a M3 forum now with a proper DIY!

Question about Euro vs American lights. If we used the euro lights would wiring and coding be the same? Would be nice to know the differences if anyone here knows them.

My car is green so yellow/amber blinker lights are more appealing to me.
Glad you liked the write up!

To answer your question. The coder I linked above, had a customer in USA who used Euro lights. Wiring was almost identical, they just needed to run an extra wire on each side from inner tail lights, and tap to the outer ones. Once coded they functioned properly, including welcome lights.
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      03-03-2021, 06:24 PM   #14
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Excellent write up!
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      03-03-2021, 06:42 PM   #15
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Nice
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      03-03-2021, 06:43 PM   #16
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Nice, thank you!
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      03-03-2021, 07:15 PM   #17
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Great write up

thank you
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      03-03-2021, 07:27 PM   #18
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I wish I still had my M5 so that I could do this mod. Epic! Great write up.
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      03-03-2021, 07:35 PM   #19
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Thank you for the great writeup. Please post info on the welcome lights when you or others have it. Also, any links to DIY for the software coding portion?
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      03-03-2021, 08:45 PM   #20
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Quote:
Originally Posted by antzcrashing View Post
Thank you for the great writeup. Please post info on the welcome lights when you or others have it. Also, any links to DIY for the software coding portion?
No problem

Yes I will for sure update the guide once the WL function is figured out and is working.

Also, if somebody will send me a solid DIY coding guide that was proven and fully functioning, I will add it also
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      03-03-2021, 09:46 PM   #21
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This is e way a write up should be done! Kudos!
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      03-03-2021, 09:53 PM   #22
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Quote:
Originally Posted by euro* View Post
Quote:
Originally Posted by antzcrashing View Post
Thank you for the great writeup. Please post info on the welcome lights when you or others have it. Also, any links to DIY for the software coding portion?
No problem

Yes I will for sure update the guide once the WL function is figured out and is working.

Also, if somebody will send me a solid DIY coding guide that was proven and fully functioning, I will add it also
Even if you can get one that is untested by you just link to it and add a disclaimer. In my case I have coded before with inpa/edibas but not bimmercode so it probably wouldn't be much different, just need to know the codes, process, and expected outputs
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