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How to Replace the Key Battery on a Mercedes Sprinter 906

Model: Mercedes Sprinter MK 2, W906 - Years 2006-2018
Part: Key

If the smart key for your Mercedes Sprinter 906 Mk2 (2006-2018) has suddenly stopped working and you want to know how to quickly and safely replace the battery, follow these steps. First, remove the emergency key located inside the cover and use it to detach the cover. Once done, remove the old, exhausted battery and insert the new battery. Finally, reassemble the rear cover and insert the physical emergency key back inside.

Updated on 12 September 2026 by ScegliAuto

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