Removing the outside thumb-turn - SmartIntego Locking cylinder (Z4)
Place the installation key on the outside thumb-turn in such a way that its two teeth engage into the outside thumb-turn; if necessary, turn the thumb-turn until both teeth lock into the locking disc.
NOTE
The installation tool must be placed flat on the inside front surface of the thumb-turn to ensure that the tool can lock into the locking disc.
Hold the outside thumb-turn firmly and carefully turn the installation tool about 30° in a clockwise direction (until you hear a click). Detach door thumb-turn.