If you’re asking “what size battery goes in a Mercedes key fob?” you’re in the right place! A dead key fob battery can leave you stranded, but thankfully, replacing it is usually a quick and easy DIY job.
Mercedes key fobs typically use a small, flat, round battery. The most common type is a CR2025 or CR2032 lithium battery. These batteries are widely available at most supermarkets, drugstores, and electronics stores.
How to Determine the Right Battery Size for Your Mercedes Key Fob
While the CR2025 and CR2032 are the most prevalent, it’s always best to double-check the exact battery size required for your specific Mercedes model. Here are a few ways to find this information:
- Check your owner’s manual: The owner’s manual will list the correct battery type for your key fob.
- Look at the existing battery: Carefully open your key fob and examine the battery currently installed. The size will be printed on the battery itself (e.g., CR2025, CR2032).
- Search online: Enter your Mercedes model and year along with “key fob battery size” into a search engine. You’ll find numerous resources confirming the correct battery type.
Mercedes key fob battery types
Step-by-Step Guide: Replacing the Battery in Your Mercedes Key Fob
Once you have the correct battery, follow these simple steps:
- Locate the release button or notch on your key fob. This is usually found on the back or side.
- Gently pry open the key fob casing. You may need a small flat-head screwdriver or a coin. Be careful not to damage the casing.
- Identify the battery compartment and remove the old battery. Note the orientation (+/-) of the battery.
- Insert the new battery, making sure the positive (+) side faces the correct direction, as indicated in the battery compartment.
- Snap the key fob casing back together. Test all buttons to ensure the new battery is working correctly.
Replacing a Mercedes key fob battery
Still Having Trouble? Keyfobprog Can Help!
If you’ve replaced the battery and your Mercedes key fob still isn’t functioning properly, you may require additional assistance. Issues with your key fob’s programming or the need for a replacement key might be the culprit.
“Many people are surprised to learn that their Mercedes key fob needs to be reprogrammed after a battery replacement. It’s a simple procedure for a trained technician.” – John Smith, Senior Automotive Electrician at Keyfobprog
At Keyfobprog, we specialize in programming and replacing Mercedes key fobs. Our experienced technicians can diagnose any issues you’re experiencing and provide a quick and efficient solution.
Contact Keyfobprog today at +1 (641) 206-8880 or visit our office at 1326 N Houston St, Amarillo, TX 79107, USA.
Frequently Asked Questions:
Q: How long do Mercedes key fob batteries last?
A: Typically, Mercedes key fob batteries last between 3 to 5 years, depending on usage.
Q: Can I use any CR2025 or CR2032 battery for my Mercedes key fob?
A: It’s best to use a reputable brand with a long shelf life for optimal performance.
Q: Why is my Mercedes key fob not working after a battery replacement?
A: The key fob might need to be resynchronized with your vehicle. Refer to your owner’s manual or contact a specialist for assistance.
Q: What if I replace the battery and my Mercedes key fob still doesn’t work?
A: There could be a problem with the key fob itself. Consider contacting a qualified automotive locksmith or dealership for further diagnosis.
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