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How to Replace the Battery in a Ford Focus Mk3

Model: Ford Focus MK 3 - Years: 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
Part: Battery

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Video tutorial

Today, you will learn how to replace the battery in a Ford Focus Mk3. Before replacing the car battery, it is important to remove the air duct and the box containing the air filter to have more space to work. Use a flat-head screwdriver to unscrew the screw on the clamp.

Then remove the clamp and disconnect the hose from the air filter box; unscrew the nuts that secure the box and remove it. Next, remove the nut that secures the battery box to remove the bracket. Disconnect the negative terminal from the battery and then the positive terminal.

Lift the battery out of its housing and remove it. Insert the new battery into the housing and secure the bracket nut. Connect the positive terminal and then the negative terminal to the battery. Reassemble the box around the battery and then remount the air filter box and reconnect the air duct.


Posted on 14 February 2026 by ScegliAuto


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by ScegliAuto

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