hi, the cps i ordered came today. there is instruction that comes with it. The instruction mentions that "the DME control unit needs to be checked with regard to the data inout and, if necessary, reprogrammed". Is this necessary? i am asking because if it needs some sort of re-program, i will not be able to do since all i have is a OBD2 scanner. i was hoping that it's plug and play just like the benz i did.
please advise before i proceed to replace them.