The brightness adjustment of the "relays" at the 4th generation AD A4 generation, with the passing beam or turning on, is done by using a VAG COM adapter. Get him to the car and go into the main window of the program. Then choose 09-Central Electronics. Then we press the Lyogin II-16 and enter the 20113 code. We pick up 10 and then Channel 03. The default brightness is 9%. Set any other value, but not less than 5%, because the onboard computer will issue an error message. The optimal value is between 45 and 55%.
