We replaced the mechatronics in a 2014 vw passat cc sport with those from an 08 vw jetta Wolfsburg and are trying to figure out how to update the software. We have an internal error 65535 with a specific parameter. We replaced part number 02E927770AL with part number 02E927770AD. I'm sure the software must need to be updated. I'm just unsure exactly where to go from here what to do...... please help me.