A8 (D4) – US turn signal

Purpose: to activate US nightlights with turn signals.

Procedure:
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, then run the VCDS program.

Line 1:

3 – Click on ” Select”, then click on ” Select ” and run the VCDS program.09 – Cent. Elect. ” .

4 – Click on “Coding – 07”.

5 – Select Byte 10 :

Bit 0: Check Turn signal active as Side marker”.

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