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How to Replace the Key Battery in a Mercedes

Model: Mercedes Classe E W212 - Years: 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
Part: Key

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The replacement process is similar for almost all models from this manufacturer, as the key is a very uniform element across each model. Remove the keychain ring and then remove the internal part of the key, which consists of the mechanical key. Use a metal key to insert it into the small slot next to it to release the guide that will allow the battery slot to come out. Now, simply replace it with the new battery and reassemble everything.


Updated on 24 February 2026 by ScegliAuto


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How to reset the tyre pressure warning light on the Kia Niro EV?

To reset the tyre pressure warning light on the Kia Niro EV, inflate the tyres until they reach the correct pressure value. This value is indicated on the sticker attached to the driver's door pillar. Once the tyres are inflated, turn on the instrument cluster to check that the warning light has completely disappeared from the display. If it is still present, you may need to drive for a few miles to ensure it disappears completely from the screen.

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