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      03-22-2024, 08:34 AM   #1
mcdanielvzw
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LCI light swap

I've seen a handful of threads about it, but I'm seriously thinking about ordering these for my car. They're plug and play (may require re-pinning, not 100% yet) and no where near the cost of new - these are on sale now, also. With the other option being used and filtering through undamaged listings, I'm feeling like they'd be worth it.

Edit: Canceled the lights from China. Install was really easy, I used Youtube Install as my guide
For a picture, pin layout and part numbers used, see Post 9
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2021 X3 M40i Sonnenstein metallic - JB4, LCI lights
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About to sell 2016 550i M Sport - Arm DP, Arm Front-Facing Intake
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Last edited by mcdanielvzw; 03-30-2024 at 05:56 PM..
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      03-24-2024, 05:25 PM   #2
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Interesting. Let us know how it turns out.
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      03-24-2024, 08:20 PM   #3
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Quote:
Originally Posted by mcdanielvzw View Post
I've seen a handful of threads about it, but I'm seriously thinking about ordering these for my car. They're plug and play (may require re-pinning, not 100% yet) and no where near the cost of new - these are on sale now, also. With the other option being used and filtering through undamaged listings, I'm feeling like they'd be worth it.

https://www.ebay.com/itm/126129232673
These look like the Euro type taillights. If you look, they have amber directionals and the brake lights are a different size( smaller )then the US type . Only the outer part lights up when you brake . Take a look at the US type , both inner and outer parts light up.
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      03-24-2024, 08:44 PM   #4
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Quote:
Originally Posted by X3rd Time Is a Charm View Post
These look like the Euro type taillights. If you look, they have amber directionals and the brake lights are a different size( smaller )then the US type . Only the outer part lights up when you brake . Take a look at the US type , both inner and outer parts light up.
I have a full set of US lights coming also, I pieced together a used set off ebay (assuming the don't have issues). I'll have to repin my harness for those.
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2021 X3 M40i Sonnenstein metallic - JB4, LCI lights
Wifey - 2021 X3 M40i Phytonic Blue - JB4, LCI lights
Selling - 2014 X1 xDrive 35i - JB4, VRSF DP / Charge Pipe https://shorturl.at/cerxH
About to sell 2016 550i M Sport - Arm DP, Arm Front-Facing Intake
Sold - 2009 328i - Stock, 195,000 running strong.
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      03-24-2024, 08:48 PM   #5
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Originally Posted by mcdanielvzw View Post
I have a full set of US lights coming also, I pieced together a used set off ebay (assuming the don't have issues). I'll have to repin my harness for those.
Ok , sounds right. Just giving you a heads up. I almost bought the Euro type for my 2018 and realized you need extra wires and have different brake lights. Good luck
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      03-24-2024, 09:06 PM   #6
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Quote:
Originally Posted by X3rd Time Is a Charm View Post
Ok , sounds right. Just giving you a heads up. I almost bought the Euro type for my 2018 and realized you need extra wires and have different brake lights. Good luck
Thanks. I don't think the brake light is different on these, but yes turn signal is amber and not a standard blink
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2021 X3 M40i Sonnenstein metallic - JB4, LCI lights
Wifey - 2021 X3 M40i Phytonic Blue - JB4, LCI lights
Selling - 2014 X1 xDrive 35i - JB4, VRSF DP / Charge Pipe https://shorturl.at/cerxH
About to sell 2016 550i M Sport - Arm DP, Arm Front-Facing Intake
Sold - 2009 328i - Stock, 195,000 running strong.
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      03-28-2024, 11:58 AM   #7
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I ended up getting a refund for the lights from China since I found some used lights that ended up being not too expensive.

I've only received the center lights so far, but I have those connectors re-pinned and lights hooked up!
Attached Images
  
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2021 X3 M40i Sonnenstein metallic - JB4, LCI lights
Wifey - 2021 X3 M40i Phytonic Blue - JB4, LCI lights
Selling - 2014 X1 xDrive 35i - JB4, VRSF DP / Charge Pipe https://shorturl.at/cerxH
About to sell 2016 550i M Sport - Arm DP, Arm Front-Facing Intake
Sold - 2009 328i - Stock, 195,000 running strong.

Last edited by mcdanielvzw; 03-30-2024 at 05:24 PM..
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      03-28-2024, 07:14 PM   #8
mcdanielvzw
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One step closer! My wife wants me to do this to hers as well now
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2021 X3 M40i Sonnenstein metallic - JB4, LCI lights
Wifey - 2021 X3 M40i Phytonic Blue - JB4, LCI lights
Selling - 2014 X1 xDrive 35i - JB4, VRSF DP / Charge Pipe https://shorturl.at/cerxH
About to sell 2016 550i M Sport - Arm DP, Arm Front-Facing Intake
Sold - 2009 328i - Stock, 195,000 running strong.
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      03-30-2024, 05:43 PM   #9
mcdanielvzw
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Finished! I ordered the set for the wife, so now I'll just have to sell at least one set of our Pre-LCI tail lights. They're in good condition so one set should just about pay for one of the swaps.

I added my own Pin diagrams also, if it ever needs to go back to stock it's mapped better (IMO). I have it done 2 different ways depending on what is easier to follow, but they're mapped the same.

LCI Tail Light Part numbers - Left are the ones originally ordered, after the slash are alternate #'s

Outer Left
H3946304910 / H3946304908

Inner Left
H3946305507 / H3946305506

Inner Right
H4946305607 / H4946305606

Outer Right
H4946305008
Attached Images
    
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2021 X3 M40i Sonnenstein metallic - JB4, LCI lights
Wifey - 2021 X3 M40i Phytonic Blue - JB4, LCI lights
Selling - 2014 X1 xDrive 35i - JB4, VRSF DP / Charge Pipe https://shorturl.at/cerxH
About to sell 2016 550i M Sport - Arm DP, Arm Front-Facing Intake
Sold - 2009 328i - Stock, 195,000 running strong.

Last edited by mcdanielvzw; 03-30-2024 at 06:00 PM..
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