How to Replace a Dead BMW Key Fob
Nearly every bmw key replacement owner will need to replace their key fob's battery at some point. Luckily, this is simple to do and will not cost you a fortune. The spare key bmw fob uses the standard CR2032 battery and can easily be repaired at a hardware store or online, or cheap an actual bmw 1 series key dealership.
Replacement Battery
A lost key fob could be more than an inconvenience; it could be a risk. The worst thing you could happen is to walk up to your vehicle, hit the unlock button only to you notice that nothing happens. This is usually a sign that the battery inside your BMW key fob is dead. Fortunately, it is simple to fix at home using an alternative battery. The first step is to identify the type of battery your bmw spare key key fob requires or a C2450 (Smart Key) or a C2032 (Comfort Access/sleek slant shaped keys).