How to Change the Battery in a Mercedes Key Fob 2019
The Mercedes key fob is an essential component of your vehicle, allowing you to lock and unlock the doors, start the engine, and perform many other functions. Over time, the battery in your key fob may lose its charge and need to be replaced. Fortunately, changing the battery in a Mercedes key fob is a relatively simple process that you can do yourself. Here is a step-by-step guide to help you with the process.
Step 1: Determine the type of key fob
The first step is to identify the type of key fob you have. Mercedes vehicles can use different types of key fobs, so it’s important to know which one you have before proceeding. The most common types include chrome key fobs, smart key fobs, and keyless go key fobs.
Step 2: Gather the necessary tools
To change the battery, you’ll need a small flathead screwdriver and a replacement battery. The battery required for your key fob will depend on its type. Refer to your vehicle’s user manual or consult a Mercedes dealership to determine the correct battery size.
Step 3: Open the key fob
Using the small flathead screwdriver, locate the indent on the side of the key fob. Insert the screwdriver into the indent and gently pry open the key fob. Be careful not to apply too much force, as you don’t want to damage the key fob.
Step 4: Remove the battery
Once the key fob is open, you’ll see the battery compartment. Carefully remove the old battery by sliding it out. Take note of the battery’s orientation so that you can insert the new battery correctly.
Step 5: Insert the new battery
Take the replacement battery and insert it into the battery compartment, ensuring that it is aligned correctly. Push it in until it is securely in place.
Step 6: Reassemble the key fob
With the new battery in place, carefully reassemble the key fob. Align the two halves together and apply gentle pressure until they snap back together.
Now that you know how to change the battery in a Mercedes key fob, let’s answer some common questions:
Q1: How often do I need to change the battery in my Mercedes key fob?
A1: On average, the battery in a Mercedes key fob lasts about two to three years. However, this can vary depending on usage.
Q2: Can I use any type of battery for my key fob?
A2: It’s recommended to use the specific battery type recommended by Mercedes for optimal performance.
Q3: Will changing the battery in my key fob affect my vehicle’s warranty?
A3: No, changing the battery in your key fob will not affect your vehicle’s warranty.
Q4: How can I tell if the battery in my key fob is low?
A4: If the battery is low, you may experience reduced range or difficulty in using certain functions.
Q5: Can I change the battery in my key fob myself?
A5: Yes, changing the battery in a Mercedes key fob is a simple process that you can do yourself.
Q6: Where can I buy a replacement battery for my key fob?
A6: You can purchase a replacement battery from a Mercedes dealership or online retailers.
Q7: Do I need to reprogram my key fob after changing the battery?
A7: In most cases, you will not need to reprogram your key fob after changing the battery.
Q8: What should I do with the old battery?
A8: Properly dispose of the old battery according to local regulations.
Q9: Can a dead key fob battery prevent my car from starting?
A9: No, a dead key fob battery will not prevent your car from starting if you have a keyless go ignition.
Q10: Can I use a key fob with a low battery until it dies completely?
A10: It’s best to replace the battery as soon as you notice reduced performance to avoid any inconvenience.
Q11: Can I change the battery in my key fob if it is water damaged?
A11: It’s recommended to replace the entire key fob if it is water damaged.
Q12: What should I do if changing the battery doesn’t resolve my key fob issues?
A12: If changing the battery doesn’t solve the problem, consult a Mercedes dealership for further assistance.
By following these steps and understanding the common concerns related to changing the battery in a Mercedes key fob, you can ensure that your key fob continues to function smoothly, providing you with convenient access to your vehicle.