gtd mk8 auto high beam gone and bendy light error

Jep. Played around with coding of 4B, right?
Generally: Do not do it, changing the coding will fry your basic settings of the automatic headlight adjustment and the Matrix LED.
Been there, done that: All the fancy settings have either no effect or a negative effect. The only thing to activate is predictive route data, but even with that I am unsure to be honest.

Do you have a backup including the live data or some data inside the live data when offline? If so, search for "Matrix light, calculated offset values" and take note of left and right offsets in angular minutes.
If not, you will have to go to the workshop and ask them to recalibrate, as we need these values to safely continue

Now do the following in Basic settings:
* Basic Headlamp Settings followed by Acknowledge Basic settings
* Matrix light, calibration, Pick Left Headlight and Right Headlight to "calibrate", start it and exit (you can ignore the axle offsets in customer mode, they are not touched by coding and basic settings)
* Enter Offset calculation matrix light, set left and right headlight to calculate offset. Enter the noted offset values, take care of horizontal and vertical offsets. Golfs only have horizontal offsets. Again start it.

You should now be able to clear the 4B errors and to reenable matrix. Still, I kindly suggest to do the Basic Headlamp setting on a even surface with an emptied out car and an empty tank (as it were in factory) to make sure the automatic levelling is near its factory setting.

Correct. But as said, they have little to effect. Predictive afs even dimmed my low beam in some situations I think which was dangerous...

Basic Settings: Just Start and then Stop if they do not finish on their own. Thats it.
Stick to the steps! You can do the matrix steps on their own when basic setting has finished once - relate to the faults to see if basic setting went through.

All makes sense if you have these values backed up, if not - you need professional help!

Sorry for my late answer, maybe you already found a solution.

If not:
Generally there will be no backup entry without actually doing one.
But you can access all most recent values from the database while offline - that saved me some times.
Just start the app - do not connect, select garage and your car and 4B, then live data. There is a small chance you were curious and these data has been stored for you.
When doing this while connected, you will overwrite the server's database and you calibration data is lost I am afraid.

No. It is actually calibration data from your individual car, as these values change on how the lights are manufactured internally and how the fixtures are connected the chassis.
A workshop should be able to recalibrate your lights in maybe an hour. Call them before showing up, still not everybody can calibrate matrix lights.

If you happen to own a garage which is suitable for light calibration and a modern light tester capable of matrix calibration, you can easily do it yourself.

So in short: No. And no, entering bogus values will silence the error messages but will leave you with a totally off light system.

Greatly depends on their hourly rates. I would assume they will need around an hour or so - at common German rates you will likely be at around 150€.

Nobody actually talked about warranty.
Of course you should not get warranty for units you fryed yourself, but generally, here in Germany they are a lot more friendly in case of unrelated errors.

Some guys here even bring their VCDS to the workshop to have proof of errors.

So yeah, maybe not tell them "I oopsed it up with OBD11" but rather "I have an error there, some smartass in the internet says you just need to calibrate the lights!"

Hi, 
thanks for all your help, my cars all good again and all my lights are working perfectly!

thanks again

Nath

nope, went to a garage near me with odis, told him the truth, he plugged it in let me sit with him with the windows down told me how and what i did wrong so i know for next time, he then showed me what and how he was doing it and fixed all of it, and he only charged me the price he paid to go online to sort it, it took him around 2 hours and job done

i got lucky

Do you happen to have a scan of all of your adaptation and long coding for the module?

Update on the above:

I've did a new Backup in this evening with headlights/Low Beam ON. The same apply, all offset values are set to 0.

The system is not self calibrating, has no feedback loops. The light system is blind to itself, so there it is setting light scenes, but has no verification of the outcome.

So either you are incredibly lucky or your matrix and level control is shifted.

I can speak from m experience that most oncoming traffic is tolerating being flashed and blinded to some extend, but slighty blinding them is still not an option in my opinion.

In case of the level control, your lights are either too high or to low. So either you blind people or your system could perform better.

Matrix will also dim the segments too early on one side and too late on the other, also blinding oncoming traffic to a certain degree. We are speaking about calibration to be exact up to 0,017° (saved in angular minutes). This sounds incredibly accurate - but with a range of ~150m the effect of some centidegree is quite large

I have nothing to add here. Either you are doing it right or just fiddle and tamper around until all warning lamps are gone and you think all is fine.

I will not change my opinion on this.
Never had oncoming traffic and tought "oh thats extraordinary bright, but not so bright I will flash back!" - you probably look like that now for other users.