[AndrewC1989]

Disclaimer: My car is a Pre-LCI F30 with halogen headlights (LED bulbs).

Long story short, I got my foglights on with the DRLs and can still use them as fog lights. The trick here is that instead of recoding the front fogs (nebelschw), you recode the cornering lamps (abbiegel). This allows the fog functionality to remain intact (at the cost of the cornering lamp function that I'm sure most of us don't use or care about).

For the coding below, I did 04 since I wanted my fogs to be automatically on with the DRLs:

FEM 3062 LceLampMapping1

MAPPING_ABBIEGEL_L_FUNCTION = 04
MAPPING_ABBIEGEL_R_FUNCTION = 04

01 = Front Parking Light L
02 = Front Parking Light R
03 = Low Beam
04 = DRL
05 = High Beam
06 = Blinker L
07 = Blinker R
08 = Fog Lights
09 = Cornering Light L
0A = Cornering Light R
0C = Brake Light
0D = Brake Force Light
0E = Rear Fog Lights
0F = Reverse Lights
10 = Rear Parking Light L
11 = Rear Parking Light R

To turn off the dimming effect (soft on/hard on):

MAPPING_ABBIEGEL_L_DIMMED > not_active (0x00)
MAPPING_ABBIEGEL_R_DIMMED > not_active (0x00)

Functionality-wise, you can turn the DRLs on/off in iDrive as normal and this will also control the DRL cornering lights (fogs). The front fogs can be manually turned on/off with the headlights as normal, and they will also work with the high beams if you've coded that function in separately.

As normal, you cannot turn the front fogs on/off with the button while the headlight switch set to off. You can turn them on/off in the parking light setting if you've coded that function on and if you've chosen any option that isn't DRL (04) or parking light (1,2,10,11).


Results of coding (04) with dimming effect turned on:

And the same thing but dimming effect turned off:

A big thanks to oranga and Takkey for the info.

[mazen222]

Thanks for sharing! I'm not sure I got this clearly, the fog lights will go on autmatically with the low beams, but can you switch them off with the button when this happens?

What I would like is to have them go on automatically with highbeams, but maintain the ability to switch them off in certain cases.

Thanks!
Maz

[AndrewC1989]

Originally Posted by mazen222

Thanks for sharing! I'm not sure I got this clearly, the fog lights will go on autmatically with the low beams, but can you switch them off with the button when this happens?

What I would like is to have them go on automatically with highbeams, but maintain the ability to switch them off in certain cases.

Thanks!
Maz

Whatever setting you program the "auto on" function to will not retain manual control. If you're like me and you program the fog auto on to DRL, you can still use the fog button to turn the fogs on and off for the low beam and high beam, however, you cannot turn them off for DRL (unless you turn off the DRL altogether). If you program them to auto on for the high beams they'll still manually work with the low beams and parking lights, just not the high beams since they're set to auto on. Makes sense? If you want manual control in a specific function you cannot program auto on to that same function. You either get manual control or auto on, not both.

Unrelated side note: you could also technically assign the auto on fog function to two different light groups since the fog lights work with both the fog and cornering light functions, however you'd give up any manual control by doing this.

[mazen222]

Cool, thanks man, I really need the manual off feature becasue its technically illegal to drive with fogs on. So i want to possibility to switch them off when i want to be more "stealth"

[AndrewC1989]

Originally Posted by mazen222

Cool, thanks man, I really need the manual off feature becasue its technically illegal to drive with fogs on. So i want to possibility to switch them off when i want to be more "stealth"

This is why I chose to use auto on with the DRL. Looks cool, doesn't blind anyone during the day, and can be shut off in iDrive if need be.

[Sprinterman]

Guys I coded the fogs as described above. All working perfect but now my high beam flash with DRL auto mode isn't working, fogs and High beam flash work fine in every light setting apart from DRL auto. Any ideas how to revert them back? They were working ok before

[AndrewC1989]

Originally Posted by Sprinterman

Guys I coded the fogs as described above. All working perfect but now my high beam flash with DRL auto mode isn't working, fogs and High beam flash work fine in every light setting apart from DRL auto. Any ideas how to revert them back? They were working ok before

My highbeam flash works perfectly fine with the headlight switch set to auto, both in DRL mode and with the low beams on. Maybe you made a mistake when coding? If you used bimmercode you can revert to your last save by clicking the backups button in the bottom right corner of the FEM/REM.

[Sprinterman]

Thanks mate for your Reply, I agree i think I made an error coding fogs. I've coded so much in expert mode, backup I can do but I'll lose all the coding I've done! And that's a headache trust me, I think it's my only option, not what I wanted to do. For example I changed the wing mirror leds to swipe leds and trying to code those was a nightmare for welcome lights. Anyway like I said it's probably my only option. Now when I press the front fog switch all lights come on which is perfect, just that damn high beam flash with DRL

[AndrewC1989]

Originally Posted by Sprinterman

Thanks mate for your Reply, I agree i think I made an error coding fogs. I've coded so much in expert mode, backup I can do but I'll lose all the coding I've done! And that's a headache trust me, I think it's my only option, not what I wanted to do. For example I changed the wing mirror leds to swipe leds and trying to code those was a nightmare for welcome lights. Anyway like I said it's probably my only option. Now when I press the front switch all lights come on which is perfect, just that damn high beam flash with DRL

Bimmercode creates a back up after each coding session so assuming this fog coding was the last coding you did and you didn't do all of your coding at the same time, you should be fine reverting to your last backup.

Another option is to go in manually and select a the default setting for each option. Worst case scenario if the default setting isn't listed you can use the legend I posted above.

[Sprinterman]

Thanks for the information, update is my first night time drive, the main beam is flashing in DRL auto setting, but won't flash during daylight hours. Strange! It can't be the sensor as they flash setting 4

[Pixel8ed]

I wan to learn a bit more on this. Would love the dogs to auto on/off with the headlights.

[AndrewC1989]

Originally Posted by Pixel8ed

I wan to learn a bit more on this. Would love the dogs to auto on/off with the headlights.

You can code them to auto on with low beams using setting 03. The only side effect is that you can't shut them off in whatever setting you code them to auto on to. This is why I chose auto on with DRL, so I can maintain the ability to shut them on/off with the low/high beam. Unless you have LCI style fogs that have the middle cut off so that the fogs don't blind oncoming traffic, I would only code the auto on to DRL or high beam.

[Sprinterman]

The consensus seems to be that the high beam is blocked by the light sensor in daylight as the system detects that high beam is not needed in daylight hours. That's why it only works at dusk, low light or night time

[AndrewC1989]

Originally Posted by Sprinterman

The consensus seems to be that the high beam is blocked by the light sensor in daylight as the system detects that high beam is not needed in daylight hours. That's why it only works at dusk, low light or night time

Oh I see what you mean now, I misunderstood what you were trying to say before. Yes, that's perfectly normal, the high beam push setting will not work with the low beams off, but the pull (flash) setting should work. I thought you were saying the pull setting wasn't working.

[Sprinterman]

Sorry if I didn't explain correctly, in DRL auto mode it is normal for the high beam not to be able to stay on as a constant. I thought it would be able to flash to pass but it doesn't. I coded the fogs to flash in DRL auto so at least I have that feature to let someone in and out etc. doesn't seem to be anyway to have both fogs and high beam flash at the same time in DRL auto. But does in light setting 4

[Sprinterman]

You are correct though, the pull setting isn't working, or allowing main beam to flash

[AndrewC1989]

Originally Posted by Sprinterman

Sorry if I didn't explain correctly, in DRL auto mode it is normal for the high beam not to be able to stay on as a constant. I thought it would be able to flash to pass but it doesn't. I coded the fogs to flash in DRL auto so at least I have that feature to let someone in and out etc. doesn't seem to be anyway to have both fogs and high beam flash at the same time in DRL auto. But does in light setting 4

Okay so what you're saying is that when you push the high beams on as a constant (with the low beams on) the fogs will turn on with the high beams as expected, but when you pull the high beams to flash with the low beams off, nothing is happening?

It would be easier to understand if you posted a video.

[Sprinterman]

No, everything works correctly in low Beam setting, when I pull the lever towards me in Auto light setting, the high beam won't flash, but the fogs flash as that's what I coded. I can't seem to find a way to have both flash at the same time

[AndrewC1989]

Originally Posted by Sprinterman

No, everything works correctly in low Beam setting, when I pull the lever towards me in Auto light setting, the high beam won't flash, but the fogs flash as that's what I coded. I can't seem to find a way to have both flash at the same time

Gotcha. That's strange, I'll see if I can play with it and figure something out.

What did you code?

MAPPING_ABBIEGEL_FUNCTION = 05?

[Sprinterman]

Thanks mate, here's the image in DRL auto setting. As you can see, the left hand side Angel eye isn't flashing upon pulling the stalk

[Sprinterman]

I'll recheck what I coded

[Sprinterman]

Ok mapping abbiegel left is set at ox09 and right is set at oxoA