Hi!
Resurrecting this thread as I believe my experience may be useful to others.
Here is just another alternative method to change the switch. I managed to replace it by only removing it from the back of the lock, without having to remove the break-off security bolts.
steps:
1) Remove the driver seat (this will give you much better access to work under the dashboard. Just four allen or 10 mm hex screws at the four courners of the rails.
2) Locate the switch and disconnect the surrouning connectors and push cables away to make some room
3) Remove top and bottom philips screw from the switch. Done!
The trick is to have a combination of socket extension and articulated joint, similar to what I used in the pictures. Some additional tips:
A) Use small socket drivers. I used 1/4"
B) The bit needs to be as short as possible but long enough to reach the head screw. I used a piece of metal as a spacer inside the bit holder to have it standing out as needed. (You will understand when you see the pictures)
C) When fitting the new switch back, use some tape to stick the screw to the bit. This will help to position the screw inside the hole.
Not saying this method is better than others. It is just another alternative. I found the screws came off very easy and was happy for leaving the break-off bolts intact.
I hope this will be useful for someone!
Greetings from Oslo,
Alexander