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How to Replace the Main Battery in a Mercedes-Benz B-Class (W247)

Model: Mercedes Classe B MK 3, W247 - Years 2019-2026
Part: Battery

In this tutorial, you will see how to replace the main battery in a Mercedes-Benz B-Class (W247) by following a few simple steps: lift the bonnet and secure it with the appropriate prop. The first thing you need to do is remove the battery cover by pulling towards you and unhooking the appropriate clips. Now, unscrew the 13 mm bolt at the bottom. Once the bolt is removed, disconnect the connector (to avoid losing data, you can connect another battery to the positive and negative terminals on the chassis to maintain power). After removing the plate, you need to remove another hidden bolt (see video); then lift the plate, and under the plastic cover, there will be the bolt that holds the strap; after unscrewing both the negative and positive, you can pull out the entire battery block. Once the old battery is removed, install the new battery by reversing the procedure.

Updated on 5 July 2026 by ScegliAuto

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How to Connect the Cables to the Battery of the Citroen Xsara Picasso?

In this tutorial, you will see how to connect the cables to the battery of the Citroen Xsara Picasso, useful if you need to recharge it or perform an emergency start. First, ensure the key is not inserted, then open the bonnet and move to the front of the left headlamp. Next, locate the bolt just behind the filter box and connect the positive terminal clamp to it. Now you can connect the negative terminal to any point on the chassis, such as the indicated point. Once the operation is complete, ensure you disconnect the negative first and then the positive.

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