I replaced my w221 cluster with AMG version everything works but the mileage is showing - - - -, it does show the S63 milage for few seconds on boot but then goto - - - -, I would like to keep the milage on the S63 cluster I have a can blocker installed at the IC, I was under the impression that putting that there would make the milage display reguardless but I guess Im missing some intel....