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How to Replace the Key Fob Battery on a Fiesta

Model: Ford Fiesta Fiesta 5, MK 5, MK V - Years 2002-2008
Part: Key

Is the remote battery dead? Here’s how to change the battery in the Fiesta key fob. Take your key fob and use a screwdriver to pry apart the two halves of the plastic key cover until they separate. Remove the two plastic halves, then take out the worn battery. Get a new one of the same size and voltage and insert it into the designated slot. Reassemble the two halves of the remote cover by pressing them together. Check if the remote works (press the lock and unlock buttons).

Updated on 15 March 2026 by ScegliAuto

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