09-02-2017, 12:38 AM | #1 |
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DIY| F31 LCI Retrofit
Installation Date : 02 September 2017
I know people have already retrofitted LCI's in F30's and F31's. I just haven't seen a DIY for the F31, so id like to contribute to the forum. NOTE: Like any DIY project, proceed at your own risk. I am not responsible for anything that happens to your vehicle as a result of attempting this retrofit. This information is simply posted as a reference to help others who may wish to do this project on their own. Parts - LCI Tail light set (inner and outer) F31 retrofit cable Tools- plastic trim removal tool phillips screw driver flat head screw driver small flat head screw driver Ratchet - 10mm & 8 mm (deep socket preferred) T bits- T20 T27 (lost my T25 but T27 worked) wire hanger tape OEM wire tape Time - Took about 2.5 hours (to include pictures and info for DIY) + coding time **Ensure all doors/windows are unlocked prior to disconnecting battery Remove panels and covers. -Use trim tool to remove plastic rivets. -Use 10mm to remove plastic bolts Remove tray over battery - Disconnect negative Remove light trims and bolts Disconnect inner light connection Remove outside tail lights by pulling straight out Disconnect connection from outer light Remove clip Use small screw driver and remove pins Reroute pins and repeat on other side Remove inner lights Remove pins and reroute Use a hanger ( I wrapped end with tape to avoid scratching) to route cable to passenger side *Might have to connect battery to open/close window and tailgate Remove T screw Pop out plastic (3 clips) and remove rubber at top Use hanger to route up the wires up Route wires through rubber sleeve and inside Route wires with harness to REM Tap LCI wires into REM 12B & 14B Driver Side REM A174*12B - Tap into 17 Passenger Side REM A174*14B - Tap into 12 Test lights prior to reassembling Coding is preferred to avoid bulb warm up test. I activated rear fogs and got a warning on the idrive. After coding it was cleared. :thump: Hope this helps other and motivates them for a great upgrade. Used Imgur for uploading pictures. Last edited by jdr78569; 09-03-2017 at 01:16 AM.. |
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09-07-2017, 12:33 PM | #5 |
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Damn bro, you're making wanna do mine lol.
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FOR SALE! Sport line Steering wheel with heated, paddle shifter, vibration motor, no airbag | EDM Bi-Xenon adaptive headlights (SOLD) | surround view retrofit kit (sold) | KAFAS2 camera and ECU | FLA camera(sold) | 6WB cluster (SOLD) |
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09-08-2017, 08:51 AM | #8 |
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x5* and already started tearing apart yesterday to install a 2ch dashcam haha.
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FOR SALE! Sport line Steering wheel with heated, paddle shifter, vibration motor, no airbag | EDM Bi-Xenon adaptive headlights (SOLD) | surround view retrofit kit (sold) | KAFAS2 camera and ECU | FLA camera(sold) | 6WB cluster (SOLD) |
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05-10-2018, 04:29 PM | #9 |
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Its an F31. Ive ordered some Posi tap connectors so I can slice into the OEM wires without causing much damage. Can I get away without having to remove the pins on the wires Ill connect to the outers or will I have to cut them off?
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08-14-2018, 01:46 AM | #10 |
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Rerouting pins?
jdr78569 - When you take the purple piece off the connector and say, “reroute pins,” how are you rerouting them? Do you match them to the harness/adapter you buy with the lights? Thanks!
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08-14-2018, 04:23 AM | #13 |
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10-19-2018, 02:23 PM | #14 | |
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But what values did you use code the rear fogs? Several of us with LCI cars in the USA have tried to get them to work, with no luck. I did the switch hack for my car, which did not come with rear fogs. The indicator on the instrument panel lights up, but the rear fogs don't work. I ran across this thread on a search and was amazed at your thorough writeup and detailed photos. It's great work... even if it doesn't apply to my car. |
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01-27-2020, 01:06 AM | #16 |
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Thank you for this Guide really helpful as it was the only real guide I could find for the f31
I ended up using this to retrofit my shadowline rears over the weekend, made the harness up myself. Wire tapped into wires near REM and coded all to LED and warm up/down cycles out with bimmercode. All working as it should just need to update my reverse bulbs to LED now. Last edited by brtttt; 01-27-2020 at 01:18 AM.. |
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02-14-2020, 04:24 AM | #17 |
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Thank you! This was really helpful when installing my tail lights.
I created a PDF guide including pin-outs which I printed out so that I could follow it through without needing to keep looking at my phone (attached). Hopefully this will help someone out when completing the same task.
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07-12-2020, 06:21 PM | #18 | |
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Drives: F31 320d xDrive M Sport
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Did you tap the wires into REM connectors A174*12B and A174*14B (wire 17 & wire 12) as per your guide? The official BMW retrofit guide which you linked says to tap into A174*13B (pin 5 & pin 13) instead. Also how do you know which wire it is you want to tap into? Do you need to remove the connector from the REM module?
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08-08-2021, 11:59 AM | #19 |
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wow, great job!
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09-08-2021, 12:09 PM | #22 | |
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