u/WolverineQuick2446

Replacing the CAN and Cluster (immo 4A) in my 2012 Passat SEL. I have access to VCDS ross-tech coding platatform, trying to ensure the swap goes smoothly. I was under the impression that my keys can be reprogrammed for the new immobilizer, but my neighbor's girlfriend knows a VW mechanic and he told her i would have to replace the ignition cylinder and get a new set of keys.. does anybody know definitively if that's true?