These key fobs use a CR2025 battery. Here’s how to change the battery in an older Mercedes-Benz key: Turn the key fob on its end, revealing a small black release switch on the bottom. Push down on the release and pull the key blade out.
Do I have to reprogram my key fob after battery replacement?
Typically, you do not need to reprogram the key fob after changing the battery. However, if you’ve replaced not just the batteries but also some of the internal wiring and electronics, you may need to reprogram it by pairing it with your vehicle once again.
How do I change the battery in my Mercedes 2022 key?
What battery does a Mercedes key take? – Related Questions
What to do if Mercedes key battery dies?
How long should a Mercedes key battery last?
These key fob batteries generally last three to four years before needing to be replaced. Wondering when to replace your key fob?
How do you open a Mercedes 2022 Key?
How do you change the battery in a 2020 Mercedes key?
How do I know if my Mercedes key battery is low?
You can tell when your Mercedes key fob battery is dying through a couple of warning signs, which may include: Your vehicle doesn’t start on the first attempt. If you find yourself having to try to start your car again and again before it works, that can be a sign that your battery is low on your key fob.
How do you take a Mercedes key apart?
How to Open a Mercedes-Benz Key Fob
Chrome Key: Pull down on the bottom silver, square-shaped piece of the key. Pull it back as far as it can go until it releases.
Smart Key: Pull the latch at the end of the Smart Key fob, and the key will remove itself from the holder. You’ll see a slot at the end of the key fob.
Why is my Mercedes key not starting my car?
You could have a dead battery or some fault in your car. If that’s not the issue, then it could just be your battery in your key fob. Your resident Mercedes-Benz dealer, perhaps Mercedes-Benz of Scottsdale, can take care of that for you or you can refer to your manual to replace it yourself.