Side mounted turn signals, removing and installing

Removing 

• Switch ignition off and remove ignition key.

Fig 1: Pushing Turn Signal Light/Housing Against Retainer

Courtesy of VOLKSWAGEN UNITED STATES, INC.

• Push side turn signal light against retaining tab -arrow- in driving direction and carefully remove from opening.
• Remove housing for side turn signals from bulb socket.

Installing 

Installation is the reverse of removal.