Just got turbos swapped....do I need to realign headlights with VAG ??? thanks!
03-21-2003, 05:24 PM
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VAG needed for Xenon adjustment...
If you simply adjust headlights and go beyond a relatively small adjustment range, I believe that you will soon get an alert on the dash indicating that the auto headlight trim system has malfunctioned, and a DTC from the headlight CPU (I did...).
It's pretty easy to clear the DTC and re-zero the auto trim system using VAG. Check the Bentley manual for the procedure.
I read somewhere here that you can fine trim the headlights using VAG as well, but this is not the procedure I used. I put the headlights into calibrate mode (no trim active), set the lights, then reactivated the auto trim. It seemed to adapt fine to the new position and I have not seen a DTC since!
It's pretty easy to clear the DTC and re-zero the auto trim system using VAG. Check the Bentley manual for the procedure.
I read somewhere here that you can fine trim the headlights using VAG as well, but this is not the procedure I used. I put the headlights into calibrate mode (no trim active), set the lights, then reactivated the auto trim. It seemed to adapt fine to the new position and I have not seen a DTC since!
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