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Remote Key Battery Replacement

Model: Audi A4 B6 - Years 2000-2004
Part: Key

If pressing the unlock button on the remote key does not open the door locks or if you need to get very close to the door for the remote to work, it is likely that the remote battery is dead; to replace it, first separate the remote part from the metal key holder by prying in the designated slot with a small screwdriver; at this point, open the remote shells to access the battery compartment (CR2032) and replace it with a new one, then close the shells and reassemble the remote with the key.

Updated on 19 February 2026 by ScegliAuto

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