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How to Open the Mercedes-Benz B-Class with the Physical Key

Model: Mercedes Classe B W245, MK 1 - Years 2005-2011
Part: Key

Briefly review the instructions to open the doors of the Mercedes-Benz B-Class in case of an emergency or if the remote battery is flat. First, take the remote in hand and remove the physical key from inside it; then insert the key into the lock cylinder of the door handle, turning it anti-clockwise to unlock the door locks, as shown in the video. At this point, get inside the vehicle and start the engine; then replace the battery of the key remote!

Updated on 10 August 2026 by ScegliAuto

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