How to NOT repair the boot opening switch on OPEL INSIGNIA SPORT TOURER 

Thanks for sharing. Same issue on my 2015 and I also got to the same point and can't remove the switch as its moulded into the boot lid in this model. Did you manage to get it fixed?

I have the same issue, intermittent function. I’m going to give it a try! Did you ever get this fixed?

Problem in a electric component where connected search their.the control board, which is located on the right behind the trunk trim. Usually the contacts oxidize there