On my 20007 Audi A8l my steering wheel adjust up and down and tilt button stop working...any suggestions of what it could be? Thx

 

2004 Audi A8 steering wheel controls not working , I had the Audi dealership install a new MMI head control unit and ever since then the steering wheel controls do not work , by checking it out with the VCDS software it shows all the buttons working when I test the outputs and looks like all the parameters and program correctly so why is it all the buttons work when I'm plugged into my laptop and I see them working but they do not work for my car stereo or speech recognition button?

 

Have you tried the red anti-valet switch on the door? Maybe it is disabled by that.