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How to Replace the Key Fob Battery for the Mercedes C-Class?

Model: Mercedes Classe C W205 - Years: 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
Part: Key

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Video tutorial

Replacing the key fob battery for the Mercedes C-Class, as shown in this tutorial, is an extremely simple and quick task. You will need a replacement CR2025 battery and a small flathead screwdriver.

Start by extracting the emergency metal key by pressing the designated button, then leverage the newly exposed slot to unlock the rear cover. At this point, remove the old battery using the screwdriver, insert the replacement battery in the correct orientation, and reassemble everything.


Updated on 8 October 2026 by ScegliAuto


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To remove the rear seat of a Hyundai Tucson, follow these steps. Start by moving the front seats to their most forward position to gain space. Next, locate the release lever on the underside of the rear seat, near the floor. Press this lever down while pulling the seat upwards to unlock it from the anchor pins. Once unlocked, tilt the seat upwards and forwards to remove it from its position. Repeat this process for both sides of the rear seat. Be careful of any electrical cables or components that may be connected to the seat during removal. Once the rear seat is removed, the disassembly is complete.

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by ScegliAuto

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