Running fog lights as dlrs

[gregozedobe]

I don't usually worry too much about fogs during the day as very few are bright enough to dazzle me because my pupils are normally reasonably constricted from sunlight.

Badly adjusted fogs at night when the weather is clear is a totally different ball game - I hate them with a passion ! Dazzle city just because the driver either thinks they "look cool" or because they believe the extra light helps them see better (they don't).

And while I'm having a rant, what's with all the 4WDs and SUVs with really dazzling lights causing issues for other drivers. Are they all just badly adjusted or are the owners installing LED globes that don't work properly with the optics ?

[doc_777]

I think we are talking about different things here Cars like Falcadoors etc drive around all day with bright lights which are fogs but are called "other" lights to get around the legislation.

DRLs are usually low power marker lights NOT 21W paint burning orbs of blinding light that you do see

The VW models that have fogs/Drl's are usually lower powered and not as obtrusive.

My highline Passat had Led DRL's and fogs and turn lights in the lower bumper.

The lower grade ones have lights down there as well that seem to be like park lights and are no where near as bright as the Falcadoors eyball searing idiot lights.

Are you positve they are the fogs or are they lower power and the fogs come on brighter in the manner of rear brake/stop lights

Simplified description - there are 4 x 35w lamps the lower fascia of my wife’s car. They serve the tasks of drl, cornering lamp, and fog lamp.

[BenT]

The lights in the bottom of my Polo bar put out less light when used as DRLs compared to when the fog switch is on.


Ben
Current: ‘18 Golf GTI Original
Past: ‘05 RS 225 Cup

[crainger]

I run the LED fogs in my GTI as DRLs and coming home lights. They aren't anywhere near as bright as the halogens.

I've driven past police in NSW and QLD many times and not a single one has mentioned anything. Where as I was asked to turn the fogs off in my Falcon at a RBT once. Even though I was driving through fog between Armidale and Coffs Harbour...

[Paulyboy]

Hi don thanks for your info. I coded the vcds with the information you provided and the fog lights come on with the dlrs in the light cluster! is there any way of removing the dlrs from the light-cluster? and only running fogs as dlrs? thanks. Paul.

Paul: hmm... OK - no gratuitous advice about compliance with the local road rules (I actually don't know if fog-lights are illegal in UK when there is no atmospheric mist).

For your question - consider the following:

1. Fire-up VCDS software, connect to the dongle and go-to the 09-Cent. Elect. control module. Then go-to Security Access - 16 and enter the magic number 31347. Then go-to Adaptation - 10
2. The 2 x Leuchte-sets for the front fog-lights are Leuchte12NL LB45 (left-side) and Leuchte13NL RB5 (right-side)
3. Usually, the only function that is factory programmed for these lights is the fog-light facility itself. But- sometimes the car is factory-set to also operate Static-AFS (which is VW's name for the cornering-light CAN bus function)
4. So, first - look @ the adaptation channels Leuchte12NL LB45-Lichtfunktion B 12 and Leuchte13NL RB5-Lichtfunktion B 13. If the settings for these channels is not active - simply change these to Tagfahrlicht and that's all that should be required
5. If the existing settings for the 2 x adaptation channels above are Abbiegelicht links/rechts (this is the AFS setting) do the following:

• Leuchte12NL LB45-Lichtfunktion C 12 > Tagfahrlicht
• Leuchte12NL LB45-Dimmwert CD 12 > 100
• Leuchte13NL RB5-Lichtfunktion C 13 > Tagfahrlicht
• Leuchte13NL RB5-Dimmwert CD 13 > 100

Don

PS:Tagfahrlicht = Daytime Running Lights on newer VCDS software

[DV52]

Hi don thanks for your info. I coded the vcds with the information you provided and the fog lights come on with the dlrs in the light cluster! is there any way of removing the dlrs from the light-cluster? and only running fogs as dlrs? thanks. Paul.

Paul: well done for getting the DRL function to work on your fog-lights!

Disabling the DRL function from the "light-cluster" shouldn't be difficult - but it's a tad problematic for me to be precise because I'm less familiar with the UK MK7 GTI pp (which I believe is 3 x door car). But it shouldn't be too hard if you are prepared to experiment.

I'm guessing from reading THIS that the "light cluster" is what is euphemistically called twin "angel-eyes". If I'm correct, there are 2 x pairs of Leuchte-sets (i.e. 4 x Leuchte-sets in total) that control DRLs in your BCM (the module @ address hex09). These Leuchte-sets are:

• Leuchte4TFL LB4
  
• Leuchte5 TFL RB32

and

• Leuchte2SL VLB10
  
• Leuchte3SL VRB21

Again, if I have guessed correctly, on each of the 4 x Leuchte-sets above the Lichtfunktion A channel should be factory programmed to the setting Daytime running lights. Please confirm that this is so on your car.

If the Lichtfunktion A channel has the DRL command, then try changing Leuchte2SL VLB10-Dimmwert AB 2 and Leuchte3SL VRB21-Dimmwert AB 3 from 100 to 0. If these changes are not successful in disabling the DRL function from the angel-eyes, revert these changes back and change Leuchte4TFL LB4-Dimmwert AB 4 and Leuchte5 TFL RB32-Dimmwert AB 5 from 100 to 0.

Don

[Paulyboy]

Hi don thanks again for your great help hope to tryi this out next week sometime will feed back the information. Once we have a play? maybe send you a picture if possible! thanks again Paul.

Paul: well done for getting the DRL function to work on your fog-lights!

Disabling the DRL function from the "light-cluster" shouldn't be difficult - but it's a tad problematic for me to be precise because I'm less familiar with the UK MK7 GTI pp (which I believe is 3 x door car). But it shouldn't be too hard if you are prepared to experiment.

I'm guessing from reading THIS that the "light cluster" is what is euphemistically called twin "angel-eyes". If I'm correct, there are 2 x pairs of Leuchte-sets (i.e. 4 x Leuchte-sets in total) that control DRLs in your BCM (the module @ address hex09). These Leuchte-sets are:

• Leuchte4TFL LB4
  
• Leuchte5 TFL RB32

and

• Leuchte2SL VLB10
  
• Leuchte3SL VRB21

Again, if I have guessed correctly, on each of the 4 x Leuchte-sets above the Lichtfunktion A channel should be factory programmed to the setting Daytime running lights. Please confirm that this is so on your car.

If the Lichtfunktion A channel has the DRL command, then try changing Leuchte2SL VLB10-Dimmwert AB 2 and Leuchte3SL VRB21-Dimmwert AB 3 from 100 to 0. If these changes are not successful in disabling the DRL function from the angel-eyes, revert these changes back and change Leuchte4TFL LB4-Dimmwert AB 4 and Leuchte5 TFL RB32-Dimmwert AB 5 from 100 to 0.

Don

[Paulyboy]

Hi Don just to give you some feedback I have coded the other codes to the car to remove the original dlrs in light clusters and this worked! for short while then 2 fault codes appeared. r/h and l/h fogs error. but the fog lights were on as dlrs and no other lights were? do I need to maybe set lightings values somewhere else? any help would be great thanks.paul

[DV52]

Paul:
Hmm......... it's getting a bit like a guessing game now!!

I really need more information about the specific settings in your car. The best information would be an adaptation channel map (in CSV format) from your BCM (the module @ address hex09). Do you know how to create an Admap? If so, paste-up a copy here

If not, the 2nd best option is to paste-up a copy of the Leuchte-set for one of the fog lights (I need all 19 x adaptation channels and their settings- please)

Don