Dynamic Light Assist

[dArK5HaD0w]

Sorry, just checked my OBD11 history, my 4B coding is
000000050100085607104F010A000000000000000000000000 00000000000, must have missed a few numbers.

Even if u sort out the long coding, it won't work unless u upload the correct 4B parameter file.

Once u have the file, then u will either need VCP or ODIS to upload it.
VCP couldn't do it for me, but ODIS was able to.

[phonebooth]

No, no parameters uploaded, just used the instructions about five times with the usual “Light assist “ & AFS errors. Can be frustrating.


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I've just re-traced my steps offline in OBD Eleven and I still can't see where I'm going wrong. Very strange that it's possible in the 2017 Tiguan without any parameter sets but not in a 2019.

I'll re-try again tonight in a live state. This might sound silly but I did the coding with the lights off (DRLs on). I assume that's correct/doesn't make a difference?

Cheers

EDIT

Even if u sort out the long coding, it won't work unless u upload the correct 4B parameter file.

Once u have the file, then u will either need VCP or ODIS to upload it.
VCP couldn't do it for me, but ODIS was able to.

Must've got this in as I was writing my reply. Might not bother re-trying tonight then!

[dArK5HaD0w]

p.s. when u see "Dynamic Light Assist" option in the infotainment, it could mean either HBA (high beam assist) or DLA (dynamic light assist) is enabled.

HBA does not require uploading of 4B parameter files.
DLA does require uploading of 4B parameter files, unless it was pre-loaded from factory, which i believe the Arteons and the newer Golfs are.
i don't know if the Tiguan fits in the same bucket too.

[phonebooth]

I have HBA active at the moment (had it activated prior to attempting DLA) - that works perfectly and appears as "Light Assist" in the head unit. When I coded (or attempted to) DLA, it appeared as "Dynamic Light Assist"

[Hole46]

I've just re-traced my steps offline in OBD Eleven and I still can't see where I'm going wrong. Very strange that it's possible in the 2017 Tiguan without any parameter sets but not in a 2019.

I'll re-try again tonight in a live state. This might sound silly but I did the coding with the lights off (DRLs on). I assume that's correct/doesn't make a difference?

Cheers

EDIT



Must've got this in as I was writing my reply. Might not bother re-trying tonight then!

With me, it was just persistence, if you managed to change the coding in 09 toAFS, FLA, Fernlicht (GLW,MDF), you shouldn’t need to change any parameters.


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[kamold]

Whilst it is entirely possible that the 4b multifunction controller has the DLA parameter set from factory, with it disabled just by coding, I find this unlikely.
Even if it's coded correctly and not faulting, is it actually properly performing DLA functions as opposed to HBA?
For one it won't have the correct startup sequence (side to side, down and up, then masking inside to out).
It's very difficult to do but if possible could you show a video of DLA functionality?

[Hole46]

Whilst it is entirely possible that the 4b multifunction controller has the DLA parameter set from factory, with it disabled just by coding, I find this unlikely.
Even if it's coded correctly and not faulting, is it actually properly performing DLA functions as opposed to HBA?
For one it won't have the correct startup sequence (side to side, down and up, then masking inside to out).
It's very difficult to do but if possible could you show a video of DLA functionality?

It’s not HBA, I had that enabled previous to DLA, and the startup sequence is different, similar to what you mention.


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[kamold]

That's a bonus.
When we enabled it in a B8 previously the startup sequence didn't change until the parameter set was loaded.
So at some point in the production cycle they must have changed the configuration so that the 4B controllers so that they are pre-loaded with DLA parameter set.

[dArK5HaD0w]

that is a bonus indeed - getting away without requiring the MDF parameter file to be uploaded.

p.s. this is how the DLA looks like on start-up.....

and in action......

[Ozsko]

I really like the way it operates with one question. If you are following a car on a long straight, say 300/400 metres behind with no oncoming traffic will it shade that car from full high beam? Has anyone tried the experiment?

[zzc2010]

I really like the way it operates with one question. If you are following a car on a long straight, say 300/400 metres behind with no oncoming traffic will it shade that car from full high beam? Has anyone tried the experiment?

Yes. That’s the U shape of high beam. DLA operates when the car is higher than 65km/h, high beam assist auto triggered and the environment is dark enough. Also, not in eco mode. If the car sense itself can not shade the cars, it won’t use high beam.


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[phonebooth]

Tried again tonight, still no luck. Wondering if I have to undo my coding for High Beam Assist then try? Perhaps it's conflicting.

If all else fails, I'll admit defeat and move on.

[Hole46]

Tried again tonight, still no luck. Wondering if I have to undo my coding for High Beam Assist then try? Perhaps it's conflicting.

If all else fails, I'll admit defeat and move on.

I admitted defeat about three times, but every time I thought “I’ll give it one more try.”


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[dArK5HaD0w]

Yes. That’s the U shape of high beam. DLA operates when the car is higher than 65km/h, high beam assist auto triggered and the environment is dark enough. Also, not in eco mode. If the car sense itself can not shade the cars, it won’t use high beam.

+1.
however mine activates above 40 km/h.

LED (matrix) headlights, like that on VW, will mask more accurately.
on my Superb, being bi-xenon, uses rollers and shutters to do the masking - hence not as "flexible" as those used in the VW stable.

[phonebooth]

I admitted defeat about three times, but every time I thought “I’ll give it one more try.”


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I really can't see where I'm going wrong. I've got someone that's going to try it for me with VCDS to see if it makes a difference. Beginning to think they've changed something in the MY19 cars where that 4B parameter set isn't included.