Execution order
1. Open the hood and disconnect the wire from the negative terminal of the battery.
2. Turn and remove the protective cap of the headlight housing.
3. Disconnect the connector with the wire from the lamp socket.
4. The side light bulb holder is installed under the high and low beam headlight holder.
5. Remove the socket and replace the lamp.
6. Insert the socket into the headlight housing.
7. Connect the connector with the wire to the lamp socket.
8. Install the headlight housing cover. The "Oben" mark on the cover should be on top.
(Content source: the specified website: AudiManual)