how to change battery in mercedes key fob

Table of Contents

How to replace your Mercedes key battery?

To Get Your Smart Key to Open,Follow the Instructions Listed Here:Pull on the sliding tab on the key fob. Then,extricate the key from the fob.Shift the key to the opposite side of its insertion location. Then,push they key down in the direction of the fob.Take out the back of the key. Then,remove the old battery. Install the new battery and ensure that it is oriented in the correct direction.

What battery do I need for my Mercedes key fob?

Duracell – 2025 3V Lithium Coin Battery ( Most-Selling )Mercedes-Benz Remote Key Battery Genuine Original ( Good-Value )Energizer 2025 Lithium Coin Cell Battery ( Runner-Up )

How do you change the battery in Mercedes Benz key?

We’ll take you through the whole process,step-by-step:Determine Key Type Check if you have a Chrome Key or a SmartKey — this will factor into changing the battery. …Choose the Right Batteries A SmartKey requires two CR 2025 batteries,and the older Chrome Key does too. …SmartKey Battery Replacement Steps In order to change your SmartKey battery: Pull the latch at the end of the key holder. …More items…

How do you change the battery in a key fob?

Part 1 Part 1 of 2: Opening the FobMove the key out of the way if it is in the fob. This depends on what kind of fob you have. …Unscrew the back of the key fob. Flip the key fob over and look for at least 1 screw holding in the plastic.Twist a coin in the side slot if the fob has one. …Pry the cover off if it doesn’t have a slot. …

How to change Mercedes key battery?

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. Then, push it into the narrow opening to unlatch and loosen the cover. Once you’ve removed the cover, remove the exposed CR 2025 batteries and replace them with new ones.

How to change batteries in CR 2025?

Remove and replace your CR 2025 batteries. Take out your 2 old batteries and replace them with 2 new ones in the designated slots. Slide the battery compartment back into the key holder until you hear a click. Put your key back into the slot vertically until it is secure as well.

What is the panic button on Chrome keys?

3. Look for a circular panic button on older Chrome keys. All Chrome key batteries are changed in the same way, but older models need 2 CR 2025 batteries instead of one. Unlike newer models, older Chrome keys have a circular panic button with the word "panic" inscribed in white letters.

How to tell if Chrome key is red?

Spot the latest Chrome model by its red triangular button. The current Chrome key model has a red triangle for its panic button. The words "panic" should be written on this button in capital letters. If you have the latest Chrome key, purchase one CR 2025 battery before you open its case.

What is the difference between smart keys and chrome keys?

Chrome and Smart Keys look similar, but Chrome Keys belong to newer Mercedes cars. Chrome Keys have a metal casing, but Smart Keys are generally made of plastic. Although Chrome and Smart Keys operate in a similar way, their batteries are changed in different ways.

How to get Mercedes key out of key holder?

Pull the latch at the end of the key holder down. The latch should be black, square, and located at the bottom end of the key holder. Your Mercedes key will fall out of its holder. Hold out your other hand to catch it as you pull the latch to avoid losing it.

How to get Chrome key out of slot?

Pull on the tab at the bottom of the Chrome key. The tab should be small and square with a silver coating. Pull the key back to release the key, which should fall out of its slot once the tab is moved.

What happens when you put a key fob in the start stop button?

When you input the key fob into the start-stop button, an inductive current from the car battery flows to the key fob to enable it to function.

How long does a battery last?

The battery is designed in such a way that it will last between 3 to 5years before a change is needed. On the shelf, the battery can still be in good condition after 10 years.

What happens to the battery when the chemical reaction is exhausted?

As the chemical ingredients get exhausted with time, the reaction slows down releasing less and less power until when there are no more materials to react and the battery dies.

Where is the slot on a key fob?

Step 2: On the top side of the key fob where you have removed the key, there is a slot.

Does a Mercedes key fob have a battery?

The Mercedes key fob uses battery to function. The battery is not chargeable and at some point, you will need to change the battery in Mercedes key fob. Here we walk you through how to change the key fob battery in easy steps.

Do you need to program a key fob after battery change?

After battery change, or after buying a new key fob, you may need to program and sync the key fob. Here are the simple steps to program the key fob.

Is the locking distance shorter or longer?

The locking distance becomes shorter and shorter.

What Type of Battery Does My Mercedes-Benz Key Fob Need?

The newer Mercedes-Benz Chrome SmartKey® calls for one CR 2025 battery while the older SmartKey® calls for two. You can order your battery online from our parts center!

How to change battery in Mercedes key fob?

To replace your Mercedes-Benz key fob battery in an older SmartKey®: 1 Pull the latch at the end of the key holder. 2 Push your key horizontally into the open slot. 3 Then lift the battery out of the compartment and replace it with your new key fob battery.

How to remove a key cover?

Remove the cover by pushing the key into the narrow end of the slot.

Can you add videos to your watch history?

Videos you watch may be added to the TV’s watch history and influence TV recommendations. To avoid this, cancel and sign in to YouTube on your computer.

When is Mercedes-Benz Key Battery Replacement Necessary?

There are several key warning signs that indicate a need for Mercedes-Benz key battery replacement. These include:

What to do if Mercedes key fob battery is low?

If any of these Mercedes-Benz low battery warning signs occur, it’s a good idea to be proactive and change the battery in your Mercedes-Benz key fob to avoid any issues on your Rye drive.

How much off wiper blades does Mercedes-Benz give?

Mercedes-Benz customers can receive 10% off wiper blades and receive a free wiper installation, after the purchase of wipers.

What battery does a Mercedes key fob use?

If your Mercedes-Benz vehicle is from the model year 2017 or later, you likely have the newest type of Mercedes-Benz key fob. These key fobs use a CR2032 battery. Here are the steps to replace the battery in this type of key fob:

How to replace CR2032 battery?

Remove the old battery from the tray. Replace it with a new CR2032 battery with the plus side facing down.

Why is my Mercedes key fob not working?

If you’re experiencing difficulties with your Mercedes-Benz key fob, it could be due to a dying battery. The steps for how to change the battery in a Mercedes-Benz key fob at home in Springfield are simple and easy to follow, but they will vary depending on your vehicle’s model year. In the guide below, the service team at Mercedes-Benz of Eugene provides the battery replacement steps for both older and newer key fob styles.

How to remove key blade from a sandbox?

Push down on the release and pull the key blade out.

Where is Mercedes of Eugene located?

If you need help replacing the battery in your Mercedes-Benz key or you need a full key fob replacement, Mercedes-Benz of Eugene is conveniently located near Roseburg and Corvallis. Please contact us or schedule an appointment to get started today. Our parts center can provide Mercedes-Benz service cost info for key fob issues and answer any additional questions you may have. We’re here to make your Mercedes-Benz ownership experience simple and stress-free!

Where is the button on a key fob?

Press the small button located at the bottom of the rear side of your key fob.

Is it hard to start a Mercedes?

It may become increasingly difficult to start your Mercedes-Benz, requiring several attempts before a successful start.

When a Mercedes-Benz Key Fob Battery Needs Replacement

Knowing when to change your Mercedes-Benz key fob battery can appear in several ways. That’s why you may want to start looking for a replacement if you notice any of these vehicle issues:

Replace Your Mercedes-Benz Key Fob Battery

Once you’re ready to replace your Mercedes-Benz key fob battery, follow these simple steps:

Keep Your Luxury Vehicle in Great Shape at Mercedes-Benz of Los Angeles

Now that you know how to change a battery in Mercedes-Benz keys, you can discover more helpful service features and then make your way over to our dealership so we can get you back on the road.

What to do if your fob is still having issues?

If your FOB is still having issues after replacing the battery, there may be another issue. If you are still having issues, give Alex’s Autohaus a call or schedule an appointment online. Our team of factory-trained technicians has the know-how to diagnose the issue you are having with your key FOB.

What happens if you can’t unlock a Mercedes key fob?

If you are unable to unlock your Mercedes with the key FOB, the battery is probably dead. Changing the battery in your key FOB is not difficult. You can easily do it at home by following these steps.

Do smart keys have batteries?

On some Smart Keys, the batteries are not stacked on top of each other but positioned side by side.

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