First you need to identify which key you have. 13mm socket wrench — you will use this when you take out the bracket that holds the battery in place.
If it unlocks the door, the problem may be a weak battery in the key fob, or a problem in the keyless entry antenna or wiring.
How to change mercedes key battery 2013. Your problem is likely that the fob can start the car but will not allow you to. There are several mercedes smart key remotes so make sure to look at the correct video. Energizer key fob batteries are a great replacement to the oem remote battery.
Test the buttons to make sure the new battery works. Once you’ve removed the cover, remove the exposed cr 2025 batteries and replace them with new ones. Your keyless remote or key fob won’t unlock doors.
The panic button and/or trunk unlock features don’t work. Get the appropriate replacement battery. We strongly recommend using a lithium battery like these one s, as they last much longer.
Using the valet key, hook and then slide the slider that is located inside of the cavity (towards the notched side of the fob). Reprogramming key fob after changing the battery. Please refer to your owner’s manual for advice on how to change your keyless remote battery.
Tap the smart key against your palm until the battery falls out. Not only that but also look at the fuse for the antenna module and aam. The message to change the battery in the key fob appeared about 6 months ago.
Try the lock button, trunk release button or panic button. That's just the nature of the beast. Remove the metal key from the keyfob and use it to manually unlock the doors.
Most vehicles with the battery in the. The key fob itself could be defective or have a bad unlock button. Reinstall the battery cover by inserting the plastic tabs, then pushing the cover closed.
4.5 out of 5 stars. Keys have a lot of stored data and can be corrupted to the point of having to buy a brand new key, which can run a couple hundred buck. Then, push it into the narrow opening to unlatch and loosen the cover.
Next time have the dealership change the battery, they can do it without having to reprogram it. If your battery is putting out less than 12 volts, it's time to replace it. Key fob batteries for mercedes benz remote e300 e320 e350 e400 e500 e550 e55 e63.
Key fob batteries for mercedes benz remote e300 e320 e350 e400 e500 e550 e55 e63 quantity. 10mm socket wrench — you will need this to disconnect the battery from the positive and negative terminals. Press in on the chrome portion of the key fob as you pry out the battery holder by hand.
So i did, i bought a brand new battery but the message came up the next time i used the key even though i replaced the battery. I have no problem unlocking the doors using the push button on the key fob or grabbing the door handle. Locate and test the battery.
Your mercedes key fob has stopped working with no warning or explanation. You will have to take it back to a dealer. Your mercedes key fob doesn’t work after changing the battery.
Because your mb receives the lock / unlock signal via the antennas installed on your car, a bad antenna module fuse can also cause mercedes key. If you cannot locate your make and model, locate the fcc id# for your keyless entry on the back of your remote. A battery will last three or four years.
If the other buttons work, the problem is a bad unlock button. Slide the lever on your key fob to the left, and remove the valet key. To change a mercedes key battery, start by pulling the silver tab at the bottom of the key holder back to release the manual key.
Next, you need to check the fuse for the central locking circuit.