How to change mercedes benz car key battery

Mercedes Benz is a well-known name in the luxury car segment, and with luxury comes advanced technology. One such technological marvel is the keyless entry system of a Mercedes Benz car. However, if the car key battery dies, it could be a hassle to get the car started. Changing the Mercedes Benz car key battery is a simple task, and this guide will walk you through step-by-step.

The first step towards changing the Mercedes Benz car key battery is to identify the key type and choose the correct battery. Mercedes Benz car keys can be of two types- one with a chrome edge and the other with a black edge. The chrome edge keys require a CR2025 battery, while the black edge keys require a CR2032 battery.

Next, follow the steps mentioned below for effortless changing of the car key battery:

Step 1: Locate the small slot on the side of the key and place a flat object, like a flathead screwdriver, in the slot. Gently exert pressure to pry open the key cover.

Step 2: Look out for the battery holder that houses the battery. Remove the holder using a small object such as a paperclip or toothpick.

Step 3: Carefully take out the battery from the holder and dispose of it as per the regulations of your locality.

Step 4: Insert the new battery into the holder with the positive side facing up. Ensure that the battery is placed correctly within the holder.

Step 5: Slide the battery holder back into the key and align it with the key cover. Press down gently to snap the key cover in place.

Changing of the Mercedes Benz car key battery is an easy task that could save you from unwanted hassles. Make sure to choose the correct battery type and follow these simple steps for a quick battery replacement.

How to Change Mercedes Benz Car Key Battery

Step 1: Remove the Key Blade

The first step to change the battery of your Mercedes Benz car key is to remove the key blade. You can do this by pressing the button on the end of the key and sliding the blade out of the key body.

Step 2: Open the Key Body

Next, you will need to open the key body. You can do this by gently prying the two halves of the key apart using a small flathead screwdriver or a knife.

Step 3: Replace the Battery

Once the key body is open, you will be able to see the battery. Use a small flathead screwdriver or a knife to carefully remove the old battery from its holder. Then, insert the new battery into the holder with the positive side facing up.

It’s important to use the correct type of battery for your Mercedes Benz car key. You can find this information in your car’s owner manual or by searching online.

Step 4: Close the Key Body

After replacing the battery, you can close the key body by pressing the two halves together until they click into place. Make sure the key blade is in the correct position before closing the key body.

Once the key is fully reassembled, test it to make sure it’s working properly. If you’re still having issues after replacing the battery, you may need to contact your local Mercedes Benz dealership for further assistance.

Section 1: Preparation and Materials

Gather your Tools and Materials

Before you begin changing the battery in your Mercedes-Benz car key, you need to gather the necessary tools and materials. To successfully change the battery in your car key, you will need:

• A replacement battery (CR2025 or CR2032, depending on your car key model)
• A small flathead screwdriver or a plastic pry tool
• A clean, well-lit workspace

Make sure to have all the necessary items handy before starting the process.

Identify your Car Key Type

The battery replacement process will differ depending on the type of Mercedes-Benz car key you have. There are three main types of car keys:

1. Chrome Key Fob – used on older models, such as the C-class and E-class
2. Smart Key – used on newer models, such as the S-class and GLE
3. Plastic Key – used on entry-level models, such as the A-class and B-class

Make sure to identify which type of car key you have before proceeding with the battery replacement process.

Section 2: Opening the Key Fob

Step 1: Locate the Key Blade

Before opening the key fob, start by locating the key blade at the bottom of the fob. Push the small release button on the side of the key blade to remove it from the fob.

Step 2: Pry Open the Fob

Use a small flat-head screwdriver to gently pry open the two halves of the key fob. Start at the end opposite the key blade and gradually work your way around the perimeter of the fob until it opens completely. Note that some models may have small tabs or screws that need to be released before the fob can be opened.

Step 3: Remove the Old Battery

Locate the battery compartment inside the fob and use a small tool, such as a flat-head screwdriver or a coin, to gently pry out the old battery. Take note of the orientation of the battery before removing it so that you can properly install the new battery.

Step 4: Install the New Battery

Insert the new battery into the compartment with the positive (+) side facing up. Use the same small tool to press the battery into place if necessary. Once the battery is securely in place, snap the two halves of the fob back together.

Congratulations, you have successfully opened the key fob and replaced the battery. Your Mercedes Benz car key should now function properly.

Section 3: Replacing the Battery

Step 1: Locate the Battery Compartment

The first step in replacing the battery in your Mercedes Benz car key is to locate the battery compartment. This is usually located at the back of the key, and can be accessed by sliding a small button or switch on the key.

Step 2: Remove the Old Battery

Once you have located the battery compartment, use a small screwdriver to gently pry open the compartment cover. Remove the old battery using a pair of tweezers or your fingers, being careful not to damage any of the key’s components.

Step 3: Insert the New Battery

With the old battery removed, insert a new battery of the same type into the battery compartment. Make sure the battery is securely in place, and that the positive and negative ends are facing the correct direction.

Step 4: Reassemble the Key

After inserting the new battery, carefully reassemble the key by replacing the battery compartment cover and pushing it back into place. Check that the key is in working order by testing it on the car’s locks and ignition system.

Step 5: Dispose of the Old Battery Responsibly

It is important to dispose of the old battery responsibly. Do not throw it in the trash, as it can be harmful to the environment. Instead, take it to a recycling center or contact your local waste management company for guidance on proper disposal methods.

Section 4: Closing the Key Fob and Testing the Key

Closing the Key Fob

Once you have replaced the battery in the key fob, it is time to close it back up. Take the back cover of the key fob and carefully align it with the front cover. Make sure that all the parts of the key fob are firmly in place and there are no loose parts. Press down gently on the key fob until you hear a click. This indicates that the key fob is securely closed.

Testing the Key

After closing the key fob, it is important to test it to ensure that it works correctly. Stand close to your car and press any button on the key fob. If the key fob is working, the car should beep and the lights should flash. Test each button on the key fob to make sure they all work as expected.

If the key fob does not work after replacing the battery, double-check that the battery is inserted correctly and that the key fob is closed securely. If the key fob still does not work, it may be damaged or need to be reprogrammed. In this case, it is best to take it to a certified Mercedes-Benz dealer for further assistance.

By following these instructions and replacing the battery in your Mercedes-Benz key fob, you can save time and money by doing it yourself. Remember to always use caution when working with small parts and to test the key fob after replacing the battery.