Logic of naming actuators in VW-group is simple it contains "N" + actuator number. The actuator number is unique. Here you can find fitting location, connectors and some basic information about actuators.
To our mind, actuators information is reference, so there is only simple search by number.
-N131 Airbag igniter, passenger side
1 = Nut
2 = Nut
3 = Front passenger airbag module with airbag igniter 1,
passenger side -N131
4 = Nut
5 = Nut
6 = Electrical connector for airbag igniter 1, passenger