Remove the glove box. Press the lock "3" and remove the connector "2" from the switch. Press the arrows of the locking latches and remove the switch "1" forward.
Insert key "3" into lock "2". Break switch "1" with key "3" inserted. Break off lock "2". Insert lock "2" with key "3" inserted into the new switch "1" so that lock "2" engages.
(The original article is available on the online resource: audimanual)