not sure where to post this but since i have a 8L A3, it'll go in here. picked up an error with vagcom (17967 - Throttle Valve Control part (J338): Fault in basic settings) and been advised to "clean the throttle body, around the flap and then reset the throttle setting using vagcom." ok, i got lost after "clean", whats the throttle body and how do i clean it? i need advice that the most simple of people can follow. pictures would be nice too. thanks.