2013 Mercedes E350 Key Fob Battery Replacement: A Comprehensive Guide

Replacing the key fob battery in your 2013 Mercedes E350 is a simple task that can save you time and money. This guide will walk you through the process, offering helpful tips and addressing common questions to ensure a smooth experience. We’ll cover everything from identifying the correct battery type to troubleshooting potential issues.

Why Replace Your Key Fob Battery?

A dying key fob battery can lead to several frustrating scenarios, like reduced range, intermittent functionality, or even a complete failure to unlock or start your car. Recognizing the signs of a weak battery is crucial to avoid being stranded. Some common indicators include:

• Dimming Key Fob Light: A noticeably weaker light when pressing buttons suggests the battery is losing power.
• Increased Proximity Required: Needing to be closer to your vehicle for the key fob to function.
• Intermittent Operation: The key fob working sporadically or requiring multiple button presses.
• Complete Key Fob Failure: The key fob no longer unlocks the doors or starts the engine.

What You’ll Need for a 2013 Mercedes E350 Key Fob Battery Replacement

Before starting, gather the necessary tools and materials. This simple preparation will streamline the process. You will need:

• A new CR2025 battery: This is the standard battery for most 2013 Mercedes E350 key fobs.
• A small flat-head screwdriver: This will be used to pry open the key fob casing.
• Optional: A small plastic pry tool: This can help prevent scratching the key fob.

2013 Mercedes E350 Key Fob Battery Replacement Tools

Step-by-Step Guide to 2013 Mercedes E350 Key Fob Battery Replacement

Follow these simple steps to replace the battery in your 2013 Mercedes E350 key fob:

1. Locate the Release Button: On the side of your key fob, find the small release button. This is usually near the key ring.
2. Release the Emergency Key: Press the release button and slide out the emergency metal key.
3. Separate the Key Fob Halves: Use the flat-head screwdriver or plastic pry tool to gently pry open the key fob casing. Start at the seam where the emergency key was located. Be careful not to damage the plastic.
4. Remove the Old Battery: Locate the CR2025 battery and carefully remove it. Note the orientation of the battery.
5. Install the New Battery: Insert the new CR2025 battery, ensuring it is positioned correctly, matching the orientation of the old battery.
6. Reassemble the Key Fob: Align the two halves of the key fob and press them together firmly until they snap shut.
7. Reinsert the Emergency Key: Slide the emergency key back into its slot.
8. Test the Key Fob: Try locking and unlocking your car and starting the engine to verify the new battery is working correctly.

Troubleshooting and FAQs

Q: What if my key fob still doesn’t work after replacing the battery?

A: Try resynchronizing your key fob with your car. Consult your owner’s manual for specific instructions for your 2013 Mercedes E350 model.

Q: Can I use a different type of battery?

A: It’s crucial to use a CR2025 battery. Using an incorrect battery type can damage your key fob.

Q: Where can I buy a CR2025 battery?

A: CR2025 batteries are readily available at most electronics stores, pharmacies, and online retailers.

“Regularly checking and replacing your key fob battery can prevent unexpected lockouts and ensure the smooth operation of your vehicle,” says John Davies, a seasoned automotive locksmith with over 20 years of experience.

Mercedes E350 Key Fob in Hand

Conclusion

Replacing the 2013 mercedes e350 key fob battery is a quick and easy process that anyone can do with the right tools and guidance. By following these steps, you can maintain the functionality of your key fob and avoid potential inconveniences.

FAQ:

1. How long does a key fob battery typically last? Generally, 2-3 years.
2. Can I damage my key fob by replacing the battery myself? Unlikely, if you follow the steps carefully.
3. What if I lose my emergency key? Contact your Mercedes dealership for a replacement.
4. Is there a way to test my key fob battery without opening the fob? Some auto parts stores offer key fob battery testing.
5. Does the key fob need to be reprogrammed after a battery change? Typically, no.
6. What if my key fob gets wet? Try drying it thoroughly and replacing the battery.
7. My key fob is cracked, can I still replace the battery? Yes, but consider replacing the fob itself due to potential damage.

Need more help? Check out our articles on Key Fob Programming and other Mercedes services.

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