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How to Replace the Key Battery on a Mercedes?

Model: Mercedes Mercedes Various
Part: Key

Video tutorial

In this video tutorial, you can see how to replace the flat battery in a Mercedes remote control. This is the latest generation of remotes from the German manufacturer, provided for many recent models.

You won't need any special tools, just a replacement battery, model CR2032, 3V. Start by extracting the emergency key by sliding the small top button, and with it, unlock the rear cover by inserting it into the slot indicated in the video. Remove the flat battery and insert the replacement, ensuring the polarity is correct, with the positive side facing you.


Updated on 29 April 2026 by ScegliAuto


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How to Reset the Tire Pressure Light on a MG ZS?

On the instrument cluster of the MG ZS, the tire pressure light that appears can be reset by inflating the tires to the correct pressure: this value will be indicated on the sticker attached to the driver's door pillar. Once the tires have been properly inflated, you can turn on the instrument cluster and navigate through the menu until you find the option that indicates tire pressure: if this screen shows the new values, the light will turn off; otherwise, you will need to drive for a few miles so that the sensors can read the new values and turn off the light afterward.

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by ScegliAuto

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