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How to Replace the Key Battery for the Mercedes Benz S-Class

Model: Mercedes Classe S W223 - Years: 2020, 2021, 2022, 2023, 2024, 2025, 2026
Part: Key

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Video tutorial

Replacing the key battery for a Mercedes Benz S-Class, model W223, is a very simple task. First, extract the emergency metal key by pressing the silver button located on the back of the key. Next, open the remote into two parts using a screwdriver or the key itself to pry it open.

Once opened, remove the battery cover in the same manner. The third step is to remove the old battery and insert a new one, then complete the replacement by closing the remote.


Updated on 20 August 2026 by ScegliAuto


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How to Replace the Glow Plugs in the Fiat Ducato 2.3 Multijet?

Glow plugs, as the name suggests, raise the temperature of the engine in diesel vehicles to allow for easier starting. The manufacturer, in this case, Fiat for the Ducato 2.3 Multijet, specifies how often they should be replaced, and a warning light will illuminate when it's time. This work is carried out under the bonnet. First, remove the upper engine cover, then lift the coil and, using a socket wrench of the appropriate size, unscrew the glow plug to remove it from the base, followed by installing the new one.

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by ScegliAuto

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