05-24-2024, 10:44 AM | #1 |
New Member
0
Rep 12
Posts |
BMW F30 LCI Taillight Retrofit Left inner turn signal not working.
Hello all, I purchased my f30 a few months ago and today noticed that the left inner turn signal isn't working, the previous owner did it and looks like they did a decent job. But I'm clueless as to what the issue is. I don't know if he installed them wrong or the light has went out? I don't know much about wiring. Anybody know where I should start? Before they were not coded to be retrofitted and I coded them with bimmercode which fixed the flickering issue. I know coding didn't mess them up as I did a backup and the problem still persisted. Any help is greatly appreciated.
This looks like the same issuehttps://f30.bimmerpost.com/forums/showthread.php?t=1400959 |
05-29-2024, 08:19 AM | #2 |
Lieutenant
333
Rep 546
Posts |
1. Was the turn signal working earlier, after you took over the ownership?
2. You need to find out if this upgrade (you car is not meant to have these tail lights from the factory) was done using BMW upgrade wire harness that connects the upgraded lights to the REM direct for each of 4 turn signals (2x Lefts and 2 Rights) or with aftermarket wiring when the inner turn signals are connected to respective turn signals in the outer light assemblies. The issue you have linked to in your post describes upgrade with aftermarket wiring. Which ever case, you need someone with a basic electrical knowledge to test the wiring. 3. If the upgrade wiring used is OEM and there is no power coming to the light, the issue could be in REM (Rear Electrical Module). That would require taking the car to dealer and testing the REM first at certain service fee. If REM fails testing - might face REM replacement costs. 4. It could be that the light was not installed correctly and over time had accumulated moisture inside and as a result the PCB board inside the light had developed corrosion damages. I'm currently fixing the corrosion damages to the inner light (M Performance version with clear lens) for a friend of mine and his F31. I had to cut open the assembly in order to reach the pcb board. This is not a trivial task like changing a burnt out bulb. These assemblies are not meant to be opened up. If the wiring checks out (power arrives at the light) then you are facing light replacement. You will need to search for used light (OEM new, eBay used, junk yards with used, etc).
__________________
2003 E39 530i 5-Speed w/ M Spec, Saphire/Black, M54B30, Active Autowerke Performance Tune
2010 Lancer GTS 5-Speed, Black Pearl/Black, 4B12 2015 F30 335i XDrive w/ M Sport Pack, Alpine White/Black, N55B30M0 2017 F34 340i XDrive w/ M Sport Pack, Azure II /Black, B58B30M0, Dinan Stage 1 Last edited by Oksamit78; 05-29-2024 at 08:30 AM.. |
Appreciate
0
|
05-29-2024, 09:53 PM | #3 |
New Member
0
Rep 12
Posts |
1. I don't know really haven't checked them before
2. The wiring next to the battery looks oem to me, i will see if I can make sure 3. I think the REM is ok 4. I don't think its moisture, never saw any moisture in them Could it have something to do with wire tapping? What should I look out for if so, I've noticed they inner ones need to be wire tapped because the pre-lci inner tail doesn't have a turn signal |
Appreciate
0
|
05-30-2024, 12:33 PM | #4 |
Lieutenant
333
Rep 546
Posts |
Study pdf in the attached link.
This is OEM upgrade instructions using OEM wiring: https://www.docdroid.net/8ieaEsN/f30-lci-rear-pdf Then look at REM in your car and see if the new wires described on Page 8 of the document do connect to REM of your car using Pins 5 and 13 of A174 plug. If those wires are not existent at REM plug, that means that the upgrade was done using aftermarket wiring which uses wire taps to connect inner turn signals to the matching outers. Look for the tap in the rear left fender. There could be a loose connection there that caused inner turning signal to stop working. Good luck.
__________________
2003 E39 530i 5-Speed w/ M Spec, Saphire/Black, M54B30, Active Autowerke Performance Tune
2010 Lancer GTS 5-Speed, Black Pearl/Black, 4B12 2015 F30 335i XDrive w/ M Sport Pack, Alpine White/Black, N55B30M0 2017 F34 340i XDrive w/ M Sport Pack, Azure II /Black, B58B30M0, Dinan Stage 1 |
Appreciate
0
|
05-31-2024, 02:50 PM | #7 |
Lieutenant
333
Rep 546
Posts |
__________________
2003 E39 530i 5-Speed w/ M Spec, Saphire/Black, M54B30, Active Autowerke Performance Tune
2010 Lancer GTS 5-Speed, Black Pearl/Black, 4B12 2015 F30 335i XDrive w/ M Sport Pack, Alpine White/Black, N55B30M0 2017 F34 340i XDrive w/ M Sport Pack, Azure II /Black, B58B30M0, Dinan Stage 1 |
Appreciate
0
|
Post Reply |
Bookmarks |
|
|