TheGrrrrr
GOLD Star
Red Flag! Who drains the KDSS system?I'm with @TheGrrrrr . At least you got them to admit it.
It seems odd to me that a dealer who has the equipment to recharge the KDSS doesn't know how to do a lift. They either didn't actually recharge it with the proper equipment (most dealers have to borrow the equipment from a different dealer in their region) or they were just looking to rip you off by doing unnecessary work. It just doesn't make sense.
My guess is some junior tech opened the valves too far and they purged, and the service director didn't want to take the (expensive) hit for a recharge on his bottom line. It still seems unlikely to me that an improperly charged KDSS would cause the rear axle to shift like you described.