Hello! Have been reading topics including key programming but not quite sure how this goes since it seems that there is different options.
I have 2 older style keys. I swapped my CCCU from K to AF and ordered older style key with newer "8Z0 837 231 D" circuit board. I understood that I can change my working blade/immobilizer part to new key fob and just resync remote control to work again. Can that be done without VCDS by ignition programming method?
And I also need a spare key with working immobilizer chip (now only one with working immobilizer chip). Does it have to be unused or can I just write new data to the old chip (which is not working)? I can get that done by local locksmith (cheap). I understood that it can be done also by VCDS but can it be done even just by ignition programming method? I don’t know the history of the keys but there is at least some data at the immobilizer chip so seems that it at least is working. Of course it can be wrong chip also.
I have 2 older style keys. I swapped my CCCU from K to AF and ordered older style key with newer "8Z0 837 231 D" circuit board. I understood that I can change my working blade/immobilizer part to new key fob and just resync remote control to work again. Can that be done without VCDS by ignition programming method?
And I also need a spare key with working immobilizer chip (now only one with working immobilizer chip). Does it have to be unused or can I just write new data to the old chip (which is not working)? I can get that done by local locksmith (cheap). I understood that it can be done also by VCDS but can it be done even just by ignition programming method? I don’t know the history of the keys but there is at least some data at the immobilizer chip so seems that it at least is working. Of course it can be wrong chip also.