When I connect to CAN via MES it shows wrong data:

Country should not be Switzerland, engine is shown to be "type 2/1.4 16v" - should be 1.3 16v diesel, gearbox is presented as "double clutch" but in fact it is a selespeed.
So my question is: should I make any changes to those settings to the most probable ones? Or should I leave it the way it is, change only rear camera selection?
Where all those data are coming from that MES is reading? Is it directly from modules? Can I brick anything aligning proxy with one change only?
Thanks.
update: I did proxy alignment with incorrect data, but nothing bad happened, camera works.