If you’re experiencing issues with your 2016 Mercedes E350 key fob, a dead battery might be the culprit. Luckily, replacing the key fob battery is a quick and easy process you can do yourself, saving you a trip to the dealership. This guide will walk you through each step, ensuring you’re back to enjoying seamless entry and ignition in no time.
How to Tell if Your Key Fob Battery Needs Replacing
Before you start, it’s helpful to confirm that the battery is actually the issue. Here are some telltale signs:
- Decreased Range: You have to be much closer to your car for the key fob to unlock it.
- Intermittent Functioning: The key fob works sometimes but not others, or it takes multiple presses for a response.
- Warning Messages: Your dashboard might display messages like “Key Fob Battery Low.”
[image-1|2016-mercedes-e350-key-fob-range-decreased|Decreased Key Fob Range|A close-up image of a 2016 Mercedes E350 key fob held a few inches away from a car door handle, illustrating decreased range and the need for battery replacement.]
What You’ll Need
Replacing your 2016 E350 key fob battery requires just a couple of items:
- A new CR2025 battery: These are readily available at most convenience stores, auto parts stores, and online.
- A small flat-head screwdriver: This is used to pry open the key fob casing.
[image-2|2016-mercedes-e350-key-fob-battery-replacement-tools|Key Fob Battery Replacement Tools|An image showcasing the essential tools for a 2016 Mercedes E350 Key Fob Battery Replacement: a new CR2025 battery and a small flat-head screwdriver.]
Step-by-Step Battery Replacement Guide
- Locate the release button: On the back of your key fob, find the small, round release button.
- Release the emergency key: Press and hold the release button while gently sliding out the emergency key blade.
- Open the key fob casing: Insert the flat-head screwdriver into the slot revealed by removing the emergency key. Carefully pry open the casing.
- Remove the old battery: The CR2025 battery will be visible. Gently pry it out using the screwdriver, being careful not to damage the contacts.
- Insert the new battery: Place the new CR2025 battery in the same orientation as the old one, with the positive (+) side facing up.
- Reassemble the key fob: Align the two halves of the casing and press them firmly together until you hear a click.
- Reinsert the emergency key: Slide the emergency key back into its slot until it locks in place.
[image-3|2016-mercedes-e350-key-fob-battery-replacement-steps|Key Fob Battery Replacement Steps|A step-by-step photographic guide illustrating how to open the 2016 Mercedes E350 key fob, remove the old battery, insert the new battery, and reassemble the key fob.]
Testing Your New Battery
Once you’ve replaced the battery, test the key fob to ensure it’s working properly:
- Lock and unlock your car: Try both the lock and unlock buttons from a short distance.
- Start your engine: Insert the key fob into the ignition and try starting the car.
Expert Insights
“Many car owners overlook the importance of a properly functioning key fob,” says John Miller, a senior automotive technician with over 20 years of experience. “A simple battery replacement can make a world of difference in your car’s security and your overall driving experience.”
Frequently Asked Questions (FAQs)
Q: How long does a key fob battery typically last?
A: Key fob batteries typically last between 3 to 5 years, depending on usage and environmental factors.
Q: Can I use any CR2025 battery?
A: While any CR2025 battery will technically work, it’s best to use a high-quality battery from a reputable brand to ensure optimal performance and longevity.
Need More Help?
If you’re still experiencing issues with your Key Fob or have any further questions, don’t hesitate to contact our team of experts via WhatsApp at +1(641)206-8880 or email us at [email protected]. We’re available 24/7 to assist you.
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