MK7.5 Daytime Running Light (DRL) questions

[vins0101]

Hello, 
On my car all the headlight bulbs are halogen (no LED), I would like to turn off the drl when the turn indicator is working. I ask you what parameters I should change.

Thanks in advance,

[dv52 (Australia)]

@vins00101: It's tricky and it's often incorrect to answer your question without knowing the specifics of your car - because the factory programming varies so much with different models and countries

Post up the values of the COMPLETE Leuchte4TFL LB4 - meaning all 19 x channels

Don

[vins0101]

Hi Don, thanks for the reply. I agree with you.
In attached the screenshots of the values of Leuchte4TFL LB4. 

As additional information, the drl is included in the high beam headlight bulb (type H15). I am also attaching the photos of the front light, with the drl and the turn signal on







 

[dv52 (Australia)]

Try this:

Leuchte4TFL LB4
Lasttyp 4 > 9 - allgemeine Glühlampe 27W; auch H15
Lampendefektbitposition 4 > 48
Fehlerort mittleres Byte DTC-DFCC 4 > 43
Lichtfunktion A 4 > Tagfahrlicht
Lichtfunktion B 4 > not active
Dimmwert AB 4 > 100
Lichtansteuerung HD AB 4 > Always
Lichtfunktion C 4 > Blinken links aktiv (beide Phasen)
Lichtfunktion D 4 > not active
Dimmwert CD 4 > 0
Dimming Direction CD 4 > minimize
Lichtfunktion E 4 > Standlicht vorn (Positionslicht; Begrenzungslicht)
Lichtfunktion F 4 > Parklicht links (beidseitiges Parklicht aktiviert li & re)
Dimmwert EF 4 > 31
Dimming Direction EF 4 > maximize
Lichtfunktion G 4 > not active
Lichtfunktion H 4 > not active
Dimmwert GH 4 > 0
Dimming Direction GH 4 > maximize

Leuchte5 TFL RB32
Lasttyp 5 > 9 - allgemeine Glühlampe 27W; auch H15
Lampendefektbitposition 5 > 4C
Fehlerort mittleres Byte DTC-DFCC 5 > 44
Lichtfunktion A 5 >  Tagfahrlicht
Lichtfunktion B 5 > not active
Dimmwert AB 5 > 100
Lichtansteuerung HD AB 5 > Always
Lichtfunktion C 5 > Blinken rechts aktiv (beide Phasen)
Lichtfunktion D 5 > not active
Dimmwert CD 5 > 0
Dimming Direction CD 5 > minimize
Lichtfunktion E 5 > Standlicht vorn (Positionslicht; Begrenzungslicht)
Lichtfunktion F 5 > Parking light right
Dimmwert EF 5 > 31
Dimming Direction EF 5 > maximize
Lichtfunktion G 5 > not active
Lichtfunktion H 5 > not active
Dimmwert GH 5 > 0
Dimming Direction GH 5 > maximize

And if you want the DRLs to illuminate with low-beam (at a dimmed value so not to blind on-coming traffic) - try this for both Leuchte-sets:

Lichtfunktion E > Standlicht allgemein (Schlusslicht; Positionslicht; Begrenzungslicht)

Don

[vins0101]

Hi Don, I have tried what you indicated.

if I insert the left turn signal, both drl go off (desired is that the drl relative to the side of the indicator inserted / lit goes off)

while if I insert the right direction indicator, both drl remain on.

the value of Lichtfunktion F5, I have not found the Parking light right, I have tried both the value of F4 and the Parklicht recht value.
But nothing changes,

[vins0101]

I apologize, I double-checked the values, I had entered for the Lichtfunktion C 5> Blinken links aktiv (beide Phasen) instead of "rechts"

Now it works, thank you very much!!

[toughcookie]

Hi Don,

I recently purchased some MK7.5 style headlights. They work perfect.

However the DRL (Day time running lights) turn off when the low beams come on.

Could you provide instructions to keep the DRL on even if low beams come on? Eg. In a tunnel.

I have OBD11. The car had halogen lights previously.

Thanks,
Nathan

[dv52 (Australia)]

Nathan: Hi.

So, here's the thing - VW never made "MK7.5 style headlights" that would P-n-P into the 10 x pin headlight socket on a MK7 which was factory built with halogen headlights. Or, said another way - the retrofitted "MK7.5 style headlights" on this car are non-OEM equipment.

This means that it's anyone's guess how the third-party manufacturer designed and built the new headlights on this car. When this same question has been asked in the past - there have been some instances where the behavior of DRLs with the low-beams lamps in non-OEM headlights have been determined by electronic circuits inside the headlight housings. I don't know if your particular retrofit headlights fall into this category.

Anyhow, with the caveat above - maybe try this from a previous reply to the same question :

May 17, 2022 7:38:10 GMT dv52 (Australia) said:

Do this for Leuchte4TFL LB4 and Leuchte5 TFL RB32: Look through the 8 x Lichtfunktion channels for the Leuchte command Standlicht vorn (Positionslicht; Begrenzungslicht). Change this to Standlicht allgemein (Schlusslicht; Positionslicht; Begrenzungslicht)

Don