Audi Key Fob Battery Replacement
Find the correct key fob battery size for your Audi. Select your model and year to see the exact replacement battery, or use our step-by-step replacement guide.
How to replace a Audi key fob battery
Most Audi key fobs use a small 3V coin-cell battery (such as CR2032 or CR2025). Open the fob along the seam, swap the battery with the same size, and snap it closed. See our full how-to guide or browse your model below to confirm the exact size.
Audi key fob battery sizes
These battery types are used in Audi key fobs. Not sure which one fits yours? Select your model and year below, or use our battery size guide.
Audi Models
Select your Audi model and year to find the exact battery for your key fob.
Find Your Exact Battery
Use our vehicle selector to find the exact battery for your Audi key fob.
