BMW Key Cost - Alternatives to Heading to the Dealership BMW key fobs can be expensive to replace if damaged or lost. There are a variety of alternatives to going to the dealership to purchase the replacement key fob. Locksmiths are much cheaper for car key replacement than dealerships. See https://the-keylab59433.thenerdsblog.com/35785205/bmw-key-programmer-what-s-the-only-thing-nobody-is-discussing