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      11-02-2021, 08:13 AM   #45
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Originally Posted by Joe-BMW33 View Post
My lucky day. I've got the rear fog wires! All six pins full. Pin 1 is the fogs. Black yellow, Black white.
Awesome!!
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      11-02-2021, 08:20 AM   #46
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Quote:
Originally Posted by Joe-BMW33 View Post
My lucky day. I've got the rear fog wires! All six pins full. Pin 1 is the fogs. Black yellow, Black white.
Awesome!!
Yup, I'm pleasantly surprised. Got my touchscreen climate control panel in too!
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      11-03-2021, 06:35 AM   #47
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For those of you who only have one light that comes on, is that because you only have one physical light set in one side, or do you have both but only one works? I have both LEDs, but only the left side works and after coding I'm at a loss as to why.

For those of you who have them, when you press the brakes does the inner set of brake lights on the trunk still come on? With my LCI lights, when I press the brakes the inner brake lights don't come on but all the rest do. No errors were displayed or anything. Normally when I press the brakes with the fog lights off, the inner and outer lights come on. Wondering if that is intended with the rear fogs or not. I also thought that maybe because the inner brake lights don't come on with pre-LCI, but since the inner and outers work with the fog lights off I wasn't sure.

Pic is from when I wired them up wrong at first during install so I know they are both there.
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      01-21-2022, 11:45 AM   #48
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My new Euro-spec headlight switch is due to arrive today.

I plan to use BimmerCode according to the instructions posted by “Supacat.”
This will be my first time coding using the BimmerCode. Would it be risky to attempt to code in Expert mode as someone new to coding/using BimmerCode?
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      01-24-2022, 04:20 AM   #49
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Originally Posted by TourStageFan View Post
My new Euro-spec headlight switch is due to arrive today.

I plan to use BimmerCode according to the instructions posted by “Supacat.”
This will be my first time coding using the BimmerCode. Would it be risky to attempt to code in Expert mode as someone new to coding/using BimmerCode?
Not at all. I used Bimmercode in expert mode for the first time while doing this and nothing bad happened. Just follow the directions in the previous posts and you're good.
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      01-24-2022, 04:23 AM   #50
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Originally Posted by 704g30 View Post
For those of you who only have one light that comes on, is that because you only have one physical light set in one side, or do you have both but only one works? I have both LEDs, but only the left side works and after coding I'm at a loss as to why.

For those of you who have them, when you press the brakes does the inner set of brake lights on the trunk still come on? With my LCI lights, when I press the brakes the inner brake lights don't come on but all the rest do. No errors were displayed or anything. Normally when I press the brakes with the fog lights off, the inner and outer lights come on. Wondering if that is intended with the rear fogs or not. I also thought that maybe because the inner brake lights don't come on with pre-LCI, but since the inner and outers work with the fog lights off I wasn't sure.

Pic is from when I wired them up wrong at first during install so I know they are both there.
I can only speak for pre-LCI; my inner tail lights do not turn on when I press the brakes. This is with the rear fogs on or off. Some cars have either 1 tail light with the rear fogs, or have wiring for the fogs on 1 side. If you were able to wire both rear fogs to light up before, I'm not sure why only 1 side is lighting up for you now.
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      02-15-2022, 01:58 PM   #51
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Quote:
Originally Posted by roxxor View Post
So, after a couple weeks of trial and error, I was finally able to get the Rear Fog Lights working on my 2020 530e. Depending on your model year, you may need to add wiring and swap the tail lights with some from an earlier model year, as it seems for some newer model years, BMW is removing the LED diodes from inside the tail lights, in addition to not including the wires from the BDC to the tail lights for the rear fog light activation.

DISCLAIMER: As with all DIY projects, undertake this at your own risk. I am not responsible for anything that happens to you or your car!

The first step is to verify if your tail lights have the LED diodes, as seen in this post. If you have the LED diodes, you most likely have the wiring as well, and can proceed to make the coding changes further down the thread.

You will need to replace the headlight switch to add the rear fog light button, as modifying the existing switch no longer seems to work. Instructions for swapping the headlight switch can be found here.

Parts List:
Headlight Switch w/ Rear Fog Button:
For vehicles with Front Fog Lights and with Night Vision: 61319493738
For vehicles with Front Fog Lights and without Night Vision: 61319493734
For vehicles without Front Fog Lights and with Night Vision: 61319493736
For vehicles without Front Fog Lights and without Night Vision: 61319493733

Additionally, if your vehicle does not have the wiring (discussed further down), you will need 3 of the BMW Wiring Connectors, part #61130005197.

Tools Required: (Only if you need to add the wiring or swap the tail lights)
- T-20 Hex Screwdriver
- 8mm Socket
- Flat Head Screwdriver

If your vehicle already has the LED diodes for the Rear Fog Lights, then all you will need to do is make the coding changes below:
All changes are in the BDC_Body2 Module, in the 5FA9 Cafd file
NSL_Verbaut: Change this to "Verbaut"
LCE_BEL_LIN_VAR: Change to match your existing switch, plus "NSL". For example, mine was "39_BEL_PL_FLC_NSW_NIVI", so I changed it to "40_BEL_PL_FLC_NSW_NSL_NIVI". This keeps the incorrect light switch variant error from showing up in ISTA.
LIC_LOG_LAMP_2_OUTPUT_CHANNEL_DATA: Change this to "G30_ECE_Code"
LIC_LOG_LAMP_2_OUTPUT_CHANNEL_INDEX: Change this to "G30_ECE_Code"
LIC_NIVEAU_OVERRIDE_DATA_0: Change this to "UNK_PARAM_1"
LIC_NIVEAU_OVERRIDE_INDEX: Change this to "UNK_PARAM_3"
LIC_VERSION_DATA: Change this to "UNK_PARAM_5"


This will enable the rear fog lights without changing any of the existing tail light functions.
I don't have the "unk_param" options in the LIC_XXX menu. I do have the G30_ecu_code...IIRC, there is a 1 & 2.
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      02-16-2022, 01:01 PM   #52
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Another question. I can't tell if the diodes are there or not. Can someone with better eyesight tell if they're there or not?

TIA

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      02-16-2022, 01:24 PM   #53
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Quote:
Originally Posted by roxxor View Post
So, after a couple weeks of trial and error, I was finally able to get the Rear Fog Lights working on my 2020 530e. Depending on your model year, you may need to add wiring and swap the tail lights with some from an earlier model year, as it seems for some newer model years, BMW is removing the LED diodes from inside the tail lights, in addition to not including the wires from the BDC to the tail lights for the rear fog light activation.

DISCLAIMER: As with all DIY projects, undertake this at your own risk. I am not responsible for anything that happens to you or your car!

The first step is to verify if your tail lights have the LED diodes, as seen in this post. If you have the LED diodes, you most likely have the wiring as well, and can proceed to make the coding changes further down the thread.

You will need to replace the headlight switch to add the rear fog light button, as modifying the existing switch no longer seems to work. Instructions for swapping the headlight switch can be found here.

Parts List:
Headlight Switch w/ Rear Fog Button:
For vehicles with Front Fog Lights and with Night Vision: 61319493738
For vehicles with Front Fog Lights and without Night Vision: 61319493734
For vehicles without Front Fog Lights and with Night Vision: 61319493736
For vehicles without Front Fog Lights and without Night Vision: 61319493733

Additionally, if your vehicle does not have the wiring (discussed further down), you will need 3 of the BMW Wiring Connectors, part #61130005197.

Tools Required: (Only if you need to add the wiring or swap the tail lights)
- T-20 Hex Screwdriver
- 8mm Socket
- Flat Head Screwdriver

If your vehicle already has the LED diodes for the Rear Fog Lights, then all you will need to do is make the coding changes below:
All changes are in the BDC_Body2 Module, in the 5FA9 Cafd file
NSL_Verbaut: Change this to "Verbaut"
LCE_BEL_LIN_VAR: Change to match your existing switch, plus "NSL". For example, mine was "39_BEL_PL_FLC_NSW_NIVI", so I changed it to "40_BEL_PL_FLC_NSW_NSL_NIVI". This keeps the incorrect light switch variant error from showing up in ISTA.
LIC_LOG_LAMP_2_OUTPUT_CHANNEL_DATA: Change this to "G30_ECE_Code"
LIC_LOG_LAMP_2_OUTPUT_CHANNEL_INDEX: Change this to "G30_ECE_Code"
LIC_NIVEAU_OVERRIDE_DATA_0: Change this to "UNK_PARAM_1"
LIC_NIVEAU_OVERRIDE_INDEX: Change this to "UNK_PARAM_3"
LIC_VERSION_DATA: Change this to "UNK_PARAM_5"

This will enable the rear fog lights without changing any of the existing tail light functions.

If you do not have the LED diodes or the wiring at the tail light connectors:

In this case, you will need to find a pair of inner tail lights from an older model G30 that does have the LED Diodes. Some online auctions have detailed pictures where you can see them visible in the photos, or you may need to ask the seller if they are present or to send you additional photos. Alternatively, if you wanted to swap for the Euro tail lights with the amber turn signals, you could also do that. Instructions on how to swap the lights are in the link in the section below.

Wiring: If you do not have the LED diodes in the lights, or you do have them but the above coding did not work to enable the rear fog lights, you will need to check to see if you have the correct wiring running to the tail lights. To do this, you will need to remove the lining from the trunk, instructions on which can be found here. This link also includes instructions on how to replace the tail light units.

Once you are able to access/see the tail light wiring connectors, compare your wiring connectors to the wiring diagram found here, specifically looking at connectors E60 and E58. You are looking for a wire in slot #5 on each of those connectors. If you do not have anything in those connectors, proceed to the steps below.

In order to add the wiring, you will need to run 1 wire from the BDC module, located under the front passenger side footwell, to the tail light area, where it will split off into 2 wires, one running to each inner tail light.

NOTE: You do not need to disconnect the battery in order to add this wiring or swap the tail lights, as there will be no signal on the wiring while the lights are off. However, for safety, disconnecting the battery while working on electrical is always recommended. As a reminder, newer BMW's sometimes have more than 1 battery depending on your configuration.

To run the wire cleanly, you will need to:
- Remove the "Entrance Cover Strips", as seen in Steps 2 and 3 on this link.
- Next, gain access to the BDC module by following Steps 2 through 5 on this link up until you get to the part about disconnecting all connectors, as you will only need to remove connector A258*5B, which is identified here.
- Remove the passenger side rear seat backrest, as shown in Step #2 here.

With these steps done, your next step is to add the wiring. Start by unplugging connector A258*5B, identified above. You will be adding one of the wiring connectors to Pin #20. Once this is done, you can replace the connector in to the BDC. Now, run the wiring along the passenger side of the car. When you get to the B-Pillar, you should be able to pull it out slightly to run the wiring behind it without actually having to remove the trim. Next, when you get to the back seat, run the wiring along the factory harness, and you should be able to run it behind the trunk lining to the passenger side arm of the trunk. Continue to run it along the factory wiring here, making sure to secure it every so often with either small zip ties or electrical/fabric tape. Once you get up to the branch off for the passenger side inner tail light, this is where you will split the single wire in to two, with one continuing to follow along the factory wiring to the driver side inner tail light. For both of these wires, connect the BMW wiring connectors, and insert these connectors in to slot #5 on the tail light wiring plug.

If you have not already done the coding piece, you would now need to go ahead and make those changes. After the coding changes, you can either turn the car or on put it in diagnostic mode, then press the rear fog button, and everything should work. Once you confirm that they are functioning, you can put everything back together inside the car by reversing the steps listed above for the trunk lining and trim pieces.

Voila! You should now have working rear fog lights on your U.S. G30!
Hi there, I don't have G30_ECE as a choice in my cafd file. It's really strange, I have it for every other model referenced in the file, such as G32.

Have you ever seen something like this before? I gave up as it's not that important to me, but it still bugs me that I don't have these parameters under:

LIC_LOG_LAMP_2_OUTPUT_CHANNEL_DATA: Change this to "G30_ECE_Code"
LIC_LOG_LAMP_2_OUTPUT_CHANNEL_INDEX: Change this to "G30_ECE_Code"
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      02-16-2022, 09:47 PM   #54
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My other concern is the plug has only 4 wires with no room for any more.
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      02-16-2022, 10:10 PM   #55
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Quote:
Originally Posted by ezaircon4jc View Post
Another question. I can't tell if the diodes are there or not. Can someone with better eyesight tell if they're there or not?

TIA

Attachment 2814514

Attachment 2814515

Attachment 2814516
Sorry bud, it doesn’t look like the LEDs are in there.
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      02-16-2022, 10:14 PM   #56
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Quote:
Originally Posted by 540iSUP View Post
Sorry bud, it doesn’t look like the LEDs are in there.
Thanks. Looks like I have the switch for sale...
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      02-17-2022, 04:10 PM   #57
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Here's a stock photo of my plug... Probably the easiest way to see if the car is capable of the rear fogs. The plug has only 4 wires.

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      02-17-2022, 04:29 PM   #58
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Quote:
Originally Posted by ezaircon4jc View Post
Here's a stock photo of my plug... Probably the easiest way to see if the car is capable of the rear fogs. The plug has only 4 wires.

Attachment 2815279
It's really more about whether a US car has the rear fogs wired. Most 2017 to early build 2020 have the fifth fog light wire. It would be in pin one location on the inner connector, not the light receiving plug. It's black with a white or gray stripe for right and left.

So if you check that box, then the inner tail has to have the rear fog diodes. Your right though, if the receiver has only four wires, then that fifth on the plug is connecting to nothing.
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      02-17-2022, 05:44 PM   #59
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Quote:
Originally Posted by Joe-BMW33 View Post
It's really more about whether a US car has the rear fogs wired. Most 2017 to early build 2020 have the fifth fog light wire. It would be in pin one location on the inner connector, not the light receiving plug. It's black with a white or gray stripe for right and left.

So if you check that box, then the inner tail has to have the rear fog diodes. Your right though, if the receiver has only four wires, then that fifth on the plug is connecting to nothing.
The plug is the lower right in the picture. There are only 4 wires in that plug with no room for a 5th or 6th wire. The black & white wires are the same.
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      02-17-2022, 05:52 PM   #60
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Quote:
Originally Posted by ezaircon4jc View Post
Quote:
Originally Posted by Joe-BMW33 View Post
It's really more about whether a US car has the rear fogs wired. Most 2017 to early build 2020 have the fifth fog light wire. It would be in pin one location on the inner connector, not the light receiving plug. It's black with a white or gray stripe for right and left.

So if you check that box, then the inner tail has to have the rear fog diodes. Your right though, if the receiver has only four wires, then that fifth on the plug is connecting to nothing.
The plug is the lower right in the picture. There are only 4 wires in that plug with no room for a 5th or 6th wire. The black & white wires are the same.
Are these OEM lights?
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      02-17-2022, 06:52 PM   #61
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Quote:
Originally Posted by Joe-BMW33 View Post
Are these OEM lights?
Yup...
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      02-17-2022, 07:16 PM   #62
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I made a mistake... I was looking at the outer light and not the inner.

Here is the correct plug. I still have only 4 wires...

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      02-17-2022, 11:20 PM   #63
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Quote:
Originally Posted by ezaircon4jc View Post
I made a mistake... I was looking at the outer light and not the inner.

Here is the correct plug. I still have only 4 wires...

Attachment 2815452

Attachment 2815453
Then your car isn't wired for rear fogs. It doesn't matter if the lights have the diodes or not and the switch won't work.
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      02-17-2022, 11:24 PM   #64
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Quote:
Originally Posted by Joe-BMW33 View Post
Then your car isn't wired for rear fogs. It doesn't matter if the lights have the diodes or not and the switch won't work.
Thanks for the bad news, I think...

Anyone want to buy a rear fog light for $80 shipped to the lower 48? I'm not looking to make any $$ on this.
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      02-18-2022, 03:09 AM   #65
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Quote:
Originally Posted by ezaircon4jc View Post
Quote:
Originally Posted by Joe-BMW33 View Post
Then your car isn't wired for rear fogs. It doesn't matter if the lights have the diodes or not and the switch won't work.
Thanks for the bad news, I think...

Anyone want to buy a rear fog light for $80 shipped to the lower 48? I'm not looking to make any $$ on this.
If it's any consolation, I have them on my Euro LCI's. I had the 5th wire and I bought the switch from Latvia like you probably did for $80 bucks and I never use the rear fogs. I knew I wouldn't, but I have the functionality and I had the wire so I figured I'd get the switch. Not sure where you live, but it's foggy like once a year here and I still don't think I need the fog for people to see me.

I wouldn't sweat it.
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      02-18-2022, 04:45 PM   #66
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Quote:
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If it's any consolation, I have them on my Euro LCI's. I had the 5th wire and I bought the switch from Latvia like you probably did for $80 bucks and I never use the rear fogs. I knew I wouldn't, but I have the functionality and I had the wire so I figured I'd get the switch. Not sure where you live, but it's foggy like once a year here and I still don't think I need the fog for people to see me.

I wouldn't sweat it.
San Diego. We can get some pretty dense fog at times. I also like to use it for tailgaters. They see the figs light and think I'm braking and back off.
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