A4 (B9) – High Beam Assist activation

Purpose: activates High Beam Assist for vehicles with Sign Assist or Lane Assist option.

Caution: Please use these instructions only on vehicles equipped with Xenon headlights or “simple/static” LED headlights. In vehicles equipped with Matrix LED, this function is always active at the factory.


Proceed :
1 – Engine off, ignition off, connect your official VAG-COM VCDS cable to
the computer, then plug the other end into your vehicle’s diagnostics socket.

2 – Switch on the ignition and run the VCDS program.

Line 1:

3 – Click on“Select”, then click on“09 – Cent. Elect.”.

4 – Click on“Coding – 07” then click on“Long Coding Helper”.

5 – Select byte“05
Tick Bit 0“mmi_fla_glw_mxb,active
Then in the Bit “5-7” drop-down menu, select“60 high_beam_functions,head_light_assistant”.


Line 2:

3 – Click on“Select” then click on “.A5 – Frt Sens. Drv. Assist“.

4 – Click on“Coding – 07” then click on“Long Coding Helper”.

5 – Select byte“21
Then, in the“Bit 5-7” drop-down menu, select “20 AFS_coding_Light_Assist,High_Beam_Assist

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