So. Spent a bit of time last night making High Beam Assist work on a 2016 VW Passat Alltrack.
These instructions apply for anything with the Adaptive Cruise / Lane Keeping assist hardware that also has LED headlights with AFS. This seems to be where people go wrong as none of the traditional coding nor VCDS that has been available caters for peeps who have LED headlights that have AFS.
Before starting this set the headlight switch to the off position.
Step 1. Open VCDS, make sure it's the latest version.
Step 2. Do an autoscan of your car and save the existing coding. If you **** this up, you can revert the coding of any module back how it was. If you do not know how to do an autoscan, stop at this point. The following steps are capable if incorrectly done of bricking your car. Proceed only if you are comfortable with VCDS.
All good? Okay!
Step 3. Open 09 Central Electric module and click security access. Enter in 31347
Step 4. Open Coding menu and look at the Current coding. Copy that fully and paste it into the New Coding window below. You need to change the coding from 1C to 1D as shown in the final version in the picture so you can see where 1D is and where yours will show 1C
Attachment 30499
Step 5. Click Do It! If it asks if you want to write workshop values to a module say no, try the built in ones.
Step 6. Go to Adaptations and find IDE08786-ENG116637-Assistance light functions-Menuesteuerung Fernlichtassistent and change it to present then click Do it!
Step 9. Go out of 09 Central Electrics module and enter A5-Frt Sens. Drv. Assistant module then go to coding. Change Byte 20 Bit 5-7 so it reads 20 Light Assist (AFS): High Beam Assistant (HBA)
Boom, you just enabled High Beam Assist. Go you good thing.
It will look like this;
Attachment 30500
Attachment 30501
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