Hello all I want to change the batteries in the Phaeton. Go still good, but are already a little older. Old : W12: power supply battery 85Ah/480A and starter battery 61Ah/330A New : W12: power supply battery 95Ah/850A and starter battery 95Ah/850A The 85Ah is no longer available, since they now have 95Ah. From the place it should fit. Is this problem or can you just change it. I will charge the batteries full before of course. Does something have to be reprogrammed on the control unit? I want to install 2 x Varta AGM 95Ah 570 901 076 3332. I am grateful for help. Grus