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How to replace the additional battery of a Mercedes R-Class

Model: Mercedes Classe R W251, MK 1 - Years 2005-2013
Part: Battery

Let's see how to replace the additional battery on a Mercedes R-Class: we can find a suitable battery for example on Amazon with the code B089758CXP; a quality product being a Varta priced at 83.20 euros, free delivery in 6 days. For the replacement, it is advisable to disconnect the main battery. Move the passenger seat all the way back, remove the floor mat, remove the door sill and remove the cover of the fuse box (the thickness of the dashboard). This will facilitate the sliding of the panel. Now lift the panel and we will find the additional battery. Disconnect the negative terminal, then the positive one and remove the cables surrounding the battery, then replace it following all the steps done so far in reverse.

Posted on 22 October 2025 by ScegliAuto

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