i need to find out right now how to check the codes on my 01 A4 1.8t. i went to autozone and they wouldnt dot it for me. i remember back when i was looking for an A4 i saw a post about someone using the buttons near the A/C unit to manually check for codes. anybody have the how to? and maybe a link to a list of all the codes. i searched and couldnt find what i was looking for

 

What are you on about? What codes do you want? You do relise that you need a proper dignostic tool to plug into the car to get any fault codes