Review on Smart Key Fob Case for BMW 1 3 4 5 6 7 Series X3 X4 M5 M6 GT3 GT5 Remote Control Key Cover - 3 Button Replacement Keyless Entry by Dan Bobbert

When I got into the car, the error message "Remote control battery needs to be replaced” appeared on the dashboard. I think it's the contact between the battery and the circuit board. The case has a connector that connects the coin cell side of the battery to the circuit board. You won't be able to get to it until you disassemble the remote and then it will be destroyed. This case is a great replacement for those who are facing this problem. Of course, I don't guarantee that changing the case will solve your problem, but it worked for me. I don't think they mention it either, but the BMW logo is actually on that remote. It's hidden under a piece of black electrical tape and just not visible in the product image. Once removed, you will find the logo covered with a protective film. The key case can be easily disassembled, it simply opens with a click. I used a pick and just slid it in from the side. You need to push hard enough and go around the case to disassemble it. The small pins inside where the control board is are meant to be fused to the board to hold it in place when you hold it with your hand. I used a soldering iron to get it neat. After testing I applied four small dots of superglue to the edges where the case was held together to ensure it wouldn't fall apart if I accidentally dropped it. The factory key is glued on all sides.