How to Replace a Dead bmw 3 Series key fob Key Fob
Nearly every bmw spare key fob owner will have to replace their key fob battery at some point. Fortunately, this is very simple to do and won't cost you a lot. The key fob is powered by a standard CR2032 battery that can be repaired at a hardware store or online, or the local bmw key Replacement cost dealership.
Replacement Battery
A lost or damaged key fob can be more than just a nuisance; it could also be dangerous. You don't want to go into your car, hit the unlock button, only to then discover that there is no response. This is usually an indication that the battery inside your BMW key fob is dead. This is a simple fix you can make at home using a new battery. The first step is to identify which kind of battery you bmw replacement key cost key fob requires - either a C2450 (Smart Key) or a C2032 (Comfort Access/sleek slant shaped keys). These batteries can be found at auto parts and hardware stores for less than $5 each.