To replace the key battery on a Mercedes C-Class, first, locate the small notch or groove on the key fob. Use a small flathead screwdriver or a similar tool to gently pry open the key fob, separating the two halves. Remove the old battery, noting its orientation, and insert a new battery of the same type (commonly CR2025 or CR2032, depending on the model). Finally, snap the fob halves back together and test the key to ensure it functions properly.
To replace the battery on a Mercedes ml 350 key fob it is probably best to ask the supplier where it is purchased or there may be some instructions online.
Replace the battery on your remote key. If you get the dealer to do it for you it is notoriously expensive. Did you try unlocking the passenger side with the key?
I have a problem with my Mercedes Benz s350 2002 which the shass number of the Benz is 2200671a384480 and the engine number is vq30989871a.The problem is After i replace the battery with new one the key is not shocking again and i think it security problem.
The most probable cause is the battery is exhausted.
urgent reply
remove the manual key then remove the top of the key and replace the two batteries cr2025.
check the battery in the car and the batteries for the fob key
The key comes apart from the top, you can use the blade key to push in the tab inside the key and at the same time pull the key apart
To reset a 2006 Mercedes C-Class key fob, first, insert the key into the ignition and turn it to the “On” position without starting the engine. Press the “Unlock” button on the key fob for about 5 seconds, then release it. Turn the key back to the “Off” position, remove it, and then test the key fob to see if it functions properly. If it still doesn't work, you may need to replace the battery or reprogram the fob.
Replacing a **Mercedes-Benz key fob battery** generally costs around **$5 to $15** if you do it yourself. Most Mercedes key fobs use standard batteries like the CR2025 or CR2032, which are easy to find in stores or online. If you go to a dealership for the replacement, they may charge for both the battery and labor, bringing the total closer to **$20 to $50** depending on the location and model. However, Mercedes key fob batteries are easy to replace on your own by following the instructions in the owner’s manual or on the Mercedes-Benz website, so you can save by handling it yourself.
I have a problem with my Mercedes Benz s350 2002 which the shass number of the Benz is 2200671a384480 and the engine number is vq30989871a.The problem is After i replace the battery with new one the key is not shocking again and i think it security problem.and i don't receive any information about the motor again when the key is not shock and it does not enter the motor again please explain the solution to me
how to change key battery mercedes-benz c240 2002