How to Change BMW Key Fob Battery - 5 Series BMW 520d F10/F11 - YouTube
Horande Replacement Smart Keyless Entry Remote Control Key Fob Case fit for BMW 1 3 4 5 6 7 F Series X3 X5 M2 M5 F10 235ix 320 Key Fob Shell Cover : Amazon.in: Car & Motorbike
How to replace / change key fob battery on BMW X2, X3, X4, X5, X6