[jimmybuk]

I tried to do this yesterday, when I set it in the following:

BDC
Expert Mode
3702LicFeatures
Feature_4 - Activ

It gave me a DRL / Light error in the Dashboard. is there anything else that I need to do?

[VipinLJ]

I coded it yesterday and I had the DAYDRIVING_LIGHT_REAR option in bimmercode. It worked as stated before.

[jimmybuk]

Originally Posted by VipinLJ

I coded it yesterday and I had the DAYDRIVING_LIGHT_REAR option in bimmercode. It worked as stated before.

Where should that option be in bimmercode? Is it in Expert Mode?

[andy5468]

Originally Posted by jimmybuk

Where should that option be in bimmercode? Is it in Expert Mode?

Hi

I have a UK G20 and have successfully coded my rear LEDS to be on with front DRL.

I used Bimmercode on Android and all I had to do on mine was -

BDC
Expert Mode
3702LicFeatures
Feature_4 - Activ

No errors with mine.

I am happy with the result, which was to enable rear lights on whenever front DRL is on.

I searched for the DAYDRIVING _LIGHT_REAR in Bimmercode expert when connected to my car and could not find it. I didn't need this anyway, to achieve the result I was after.

It would appear from other posts on this, that there may be a difference between cars coding dependant on country and whether you are using ESYS or Bimmercode to find these options.

[VipinLJ]

Originally Posted by jimmybuk

Where should that option be in bimmercode? Is it in Expert Mode?

Originally Posted by andy5468

Hi

I have a UK G20 and have successfully coded my rear LEDS to be on with front DRL.

I used Bimmercode on Android and all I had to do on mine was -

BDC
Expert Mode
3702LicFeatures
Feature_4 - Activ

No errors with mine.

I am happy with the result, which was to enable rear lights on whenever front DRL is on.

I searched for the DAYDRIVING _LIGHT_REAR in Bimmercode expert when connected to my car and could not find it. I didn't need this anyway, to achieve the result I was after.

It would appear from other posts on this, that there may be a difference between cars coding dependant on country and whether you are using ESYS or Bimmercode to find these options.

IIRC, it was under Headunit > Expert mode > HMI_SPEECH > DAYDRIVING_LIGHT_REAR

[pneumodoc]

Originally Posted by VipinLJ

IIRC, it was under Headunit > Expert mode > HMI_SPEECH > DAYDRIVING_LIGHT_REAR

I coded both of these, and my rear DRLs are on all the time now. i tried turning them off in idrive (since that is now an option under settings>exterior lighting>rear DRL) but i don't think it actually turned it off when i tried to in idrive. Regardless, may stick with rear DRLs for a bit for now and decide if I like it.

[X5G05SYD]

Hi guys, which version of bimmercode you guys using in expert mode to switch on the rear drls ? Cheers

[Basti@G20 320D]

Originally Posted by RSnic

@Basti@G20 320D,

Here's my post from earlier in this thread:

While I have Bimmercode & am a beta tester (for Android), I still use E-Sys & ProLauncher to do some coding. I coded taillight DRL Activation; here's what to do:

HU_MGU module in HMI_SPEECH section

Set DAYDRIVING_LIGHT_REAR Function to aktiv

Hope that helps!

Thanks it works

[Romtom]

Originally Posted by pneumodoc

I coded both of these, and my rear DRLs are on all the time now. i tried turning them off in idrive (since that is now an option under settings>exterior lighting>rear DRL) but i don't think it actually turned it off when i tried to in idrive. Regardless, may stick with rear DRLs for a bit for now and decide if I like it.

Hi
So did I, and same problem, does anybody know what else to code in order to get the on/off feature of rear lights work properly, so that it is possible to turn on or off the rear lights seperatly from the front DRL.
Thanks

[larrylam646]

Originally Posted by Romtom

Hi
So did I, and same problem, does anybody know what else to code in order to get the on/off feature of rear lights work properly, so that it is possible to turn on or off the rear lights seperatly from the front DRL.
Thanks

I ran into this issue as well .... check BDC_BODY --> CAFD 7083 --> 3003 --> ComAdapterPdu_0D1_Frontraumueberwachung_GWW_WWA. Is it set to aktiv?

For my vehicle, unchecking "Daytime Driving Lights" in the iDrive turns off both front and rear DRLs. With "Daytime Driving Lights" checked, I can turn-off the rear DRLs by unchecking "Daytime Driving Lights, Rear" in the iDrive.

Edit: I just re-read your post and the previous post and my advice may not be relevant if your rear DRLs are on with the light switch turned to off and "Daytime Driving Lights" enabled.

[sztmek]

Originally Posted by larrylam646

I ran into this issue as well .... check BDC_BODY --> CAFD 7083 --> 3003 --> ComAdapterPdu_0D1_Frontraumueberwachung_GWW_WWA. Is it set to aktiv?

For my vehicle, unchecking "Daytime Driving Lights" in the iDrive turns off both front and rear DRLs. With "Daytime Driving Lights" checked, I can turn-off the rear DRLs by unchecking "Daytime Driving Lights, Rear" in the iDrive.

Larrylam646, if i set this option to active as you mentioned i could turn off rear drl? Did you do this coding in your car?

[larrylam646]

Originally Posted by sztmek

Larrylam646, if i set this option to active as you mentioned i could turn off rear drl? Did you do this coding in your car?

Actually for my vehicle, this option had to be set to aktiv to turn-on the rear DRLs when the light switch is set to off.

To answer your questions:

1) Yes, along with the other HU_MGU and BDC_BODY coding presented in this thread.
2) Yes, I do all of my own coding (and mods when possible).

For clarity, below is what I coded to enable my vehicle to turn-off the rear DRLs only when the front DRLs are on. For my vehicle, this coding does not enable the rear DRLs to be turned-on when the front DRLs off.

HU_MGU DAYDRIVING_LIGHT standard
HU_MGU DAYDRIVING_LIGHT_REAR aktiv
BDC_BODY 17BD OFF_IN_PWF_FAHREN_ERLAUBT ja
BDC_BODY 5665 LIC_Feature_4 enable
BDC_BODY 7083 ComAdapterPdu_0D1_Frontraumueberwchung_GWW_WWA aktiv

Please note my Canadian vehicle has been retrofitted with Euro taillights and the headlights and tail lights have been coded for euro operation.



Larry

[sztmek]

Originally Posted by larrylam646

Actually for my vehicle, this option had to be set to aktiv to turn-on the rear DRLs when the light switch is set to off.

To answer your questions:

1) Yes, along with the other HU_MGU and BDC_BODY coding presented in this thread.
2) Yes, I do all of my own coding (and mods when possible).

For clarity, below is what I coded to enable my vehicle to turn-off the rear DRLs only when the front DRLs are on. For my vehicle, this coding does not enable the rear DRLs to be turned-on when the front DRLs off.

HU_MGU DAYDRIVING_LIGHT standard
HU_MGU DAYDRIVING_LIGHT_REAR aktiv
BDC_BODY 17BD OFF_IN_PWF_FAHREN_ERLAUBT ja
BDC_BODY 5665 LIC_Feature_4 enable
BDC_BODY 7083 ComAdapterPdu_0D1_Frontraumueberwchung_GWW_WWA aktiv

Please note my Canadian vehicle has been retrofitted with Euro taillights and the headlights and tail lights have been coded for euro operation.



Larry

Thanks Larry,

Unfortunately it doesn’t work in my car EU version. I coded this thing but I couldn’t turn off rear drl when front drl are on. I could only turn on and turn off front and rear drl together in MGU

[jan.muc]

Just coded BDC_BODY 5665 LIC_Feature_4 enable with esys on my german M340i and the tail DRL is always on. Thanks‘

[bavarian star]

Originally Posted by andy5468

Anyone know where I can find the following in BDC using android Bimmercode? OFF_IN_PWF_FAHREN_ERLAUBT.

Tried to find this today to enable my AUTO lights to be switched off with the engine running , but could not find it.

someone said I would find it here - BDC01 (17BD) but there is no such module located in BDC in my Bimmercode expert mode. Maybe this is just for ESYS?

Hi,
have you already found it in Bimmercode?

[andy5468]

Originally Posted by bavarian star

Hi,
have you already found it in Bimmercode?

No, could not find this with my bimmercode app..

Still understanding this feature must only be available in ESYS?

[AlexxZeman]

Got by OBD adapter yesterday and first thing coded was scandinavian rear car lights))

[RSnic]

Hi,

Well, as one of the earler contributors to this thread, I have a question.

As I said, earlier in this thread, I offered that I coded in my car's HG_MGU, DAYDRIVING_LIGHT_REAR function to aktiv. Doing so, brought a check box in iDrive immediately below Daylight Running Lights. I checked this box & now I have front & rear DRL. Unchecking, however, doesn't seem to do anything-- the rear DRL (taillights) stay on. I, for one, would like to be able to turn on rear DRL when I think its needed.

Reading through this thread, while quite informative, lost me somewhat. What other coding is needed so that rear DRL are activated when checkbox is checked & turned off when the box is clear??

Thanks

As

[del82]

The new iDrive update 07.2020 now makes this an option by default.

I have a check box to enable rear DRL or turn it off. And it works.

[ThatGTI]

Originally Posted by del82

The new iDrive update 07.2020 now makes this an option by default.

I have a check box to enable rear DRL or turn it off. And it works.

Does your car give you two check boxes then? One for front DRL and one for rear DRL. My G20 got the 07/2020 update and it turned on rear DRL, but I only have one check box which turns off front and rear together. I also was in a G05 earlier with the same update and it was the same way. Wondering if this is something specific for the US.

[del82]

Originally Posted by ThatGTI

Does your car give you two check boxes then? One for front DRL and one for rear DRL. My G20 got the 07/2020 update and it turned on rear DRL, but I only have one check box which turns off front and rear together. I also was in a G05 earlier with the same update and it was the same way. Wondering if this is something specific for the US.

Sorry yes I was as clear as mud.

One check box. Turns on or off rear and front DRL together only. When on, a light box appears in the digital dash - same as side lights logo I think.

No idea why you can't have one or the other - probably a legal thing somewhere.

I only mention it because if you can turn both off, it must be possible to code one or the other. Maybe. And in case people think they have to risk coding to have rear DRL, you don't just need to persuade the dealer to update iDrive. Which might more difficult to be fair.

[Joedeejay]

Just got the 07/2020 update and it has added Rear DRL as option to turn on/off. No checkbox to turn the front ones off, just the rear. UK/EU car