CAS4, CAS4+, EWS4 (EWS and HUF- KEYLESS - in BMW Motorcycles) BY OBD! Abrites diagnostics for BMW/ MINI online now supports key programming for CAS4 and CAS4+ as well as EWS4 and HUF (keyless bikes) COMPLETELY BY OBDII. The functionality applies for adding a key and ALL KEYS LOST! This will be free for all customers who have BN013 and a valid AMS. BMW Motorrad motorcycle key programming may require BK002.