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How to Replace the Key Battery on a BMW 1 Series

Model: BMW Serie 1 E81, E82, MK 1, E87 - Years: 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
Part: Key

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Video tutorial

To replace the battery in a BMW 1 Series key (models E81, E82, E87, MK 1), follow these steps: Extract the metal key: Press the button located at the bottom of the key to release the metal key. Open the key cover: Use a flathead screwdriver to pry at the designated pressure point on the key's insertion part.

Lift to remove the battery cover.

Replace the battery: Remove the old battery and insert a new one of the same size and voltage (usually CR 2032). Close the key: Reinsert the emergency key into its housing and press down to close the cover.


Updated on 28 September 2026 by ScegliAuto


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by ScegliAuto

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