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How to Replace the Key Fob Battery for the MG 3

Model: MG 3 MK 1 - Years 2008-2011
Part: Key

In this guide, find the instructions to replace the battery in the key fob for the MG 3. First, take your key fob and start by removing the back cover. Press inside the side hole with a sharp tool to access the battery compartment, as shown in the video. Next, remove the old battery and replace it with a new one of the correct type and the same designation. Insert it in the correct orientation and secure the plastic cover to complete the replacement.

Posted on 28 September 2026 by ScegliAuto

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by ScegliAuto

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