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How to replace the key battery in the Mercedes A-Class W169

Model: Mercedes Classe A W169 - Years 2004-2012
Part: Key

In this new mini guide, you will learn how to replace the battery inside the key of your Mercedes A-Class W169. First, make sure you have a new CR2032 battery and then proceed to remove the emergency key from the remote cover. Next, take a small flathead screwdriver and use it to remove the rear cover. Finally, remove the dead button battery and replace it with the new one. Reattach the rear cover and the procedure is complete.

Updated on 18 September 2026 by ScegliAuto

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This video shows where the spare wheel is located in the Peugeot 5008 and how to access it, useful in case of a puncture. As shown, the wheel is not in the usual boot compartment but underneath it, outside the vehicle. To free the wheel, first gather the tools provided, then open the boot, locate the small indicated hatch, and open it. Next, loosen the bolt just released using the large socket wrench enough to lower the wheel to the ground.

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