Caution: If replacing batteries takes more than one minute, the radio remote control then you need to install.

Use a small screwdriver to pry the key cover off.
Remove 2 screws and remove the battery cover.
When replacing, use batteries of the same type (CR1220) and observe the polarity (+/). Install the new batteries in the same way as the previous ones.
Screw the battery cover on with screws. The key cover should close with a distinctive click.
If necessary, reinstall the radio remote control.
Original publication posted on the website bmwman
