vailable with a wide range of car key programmer if lost your car key; also with some car key copier if you want to make a copy of a car key with the old key. Supplying some car key programmer that works with dozens of cars made, also owing some purposely-designed car key maker for BMW and Mercedes Benz, like AK300 BMW CAS key maker, AK90 BMW EWS key programmer, AK500 programmer both for Mercedes Benz and BMW.
If you think BMW multi tool can only make key for BMW CAS immobilizer system, you are out of date. BMW multi tool can also make key for BMW EWS. Then how to do?