BMW 550i Key Fob Battery
Find the correct key fob battery for your BMW 550i by model year. Select a year below to see the battery size, replacement details, and buy options. When multiple remotes apply, each row shows the remote type.
Common questions
What battery does a BMW 550i key fob use?
It depends on your model year and remote type. Use the table below to find the exact coin-cell size (such as CR2032 or CR2025) for your year.
How do I replace the battery in my BMW 550i key fob?
Open the fob along the seam, remove the old battery, insert the same-size replacement with the same orientation, and snap it closed. See our step-by-step guide for photos and tips.
