insert key into ignition and place wheel 90 degrees from middle, if you feel behind you will find a hole, insert a flatblade screwdriver into the hole and push it in upto an inch in and you should release the airbag lug, rotate the wheel thru 180 degrees and repeat with the other hole
your airbag should now be free
disconect the wirring plug from the back of the airbag and place the airbag to 1 side in a safe place where it wont fall on the floor
worn 4 spoke wheel
now with airbag removed
to take the middle bolt out you will need a 55 torx bit (which i dont have, only got upto a 50 torx bit) so i did a bit of modifying to a 10mm allen key, i chopped the ball of the end with my dremel and filled down the sides with the dremel aswell so as it would fit the middle steering wheel bolt
once you get a proper fit with the filled down 10mm allen key, i then used my wheel wrench placed over the end of the allen key so as to give some leverage to undo the main steering wheel bolt
remove the bolt, once this is removed, mark where the wheel is, you will notice a grove on the wheel next to the spline shaft, mark a mark on the spline shaft where the groove is
groove
bolt removed and wiring disconnected
remove the old wheel
now put on your new 3 spoke wheel replace the wiring plug and the earth connector and replace the steering wheel bolt
reconect the wiring plug to the back of the airbag and replace your airbag with a gentle push and there you go, all done
reconnect your battery and turn on the ignition, if done properly the airbag lite should go off
all done
just to point out, i used this how to from passatworld to find out how to take my old wheel off, also used my haynes manual
steering wheel how to
