A4 (B9) – Daytime running light deactivation (DRL) with handbrake on


Purpose: to deactivate the daytime running lights (DRL) using the handbrake (Park EPB).


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 – 09”.

5 – Select byte 2 then set bit 2 “drl_break,active”.


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