HOW TO REPLACE KEY FOB BATTERIES - Mercedes-Benz Sprinter Key Fob Battery Replacement
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Super easy if you know what to do. Could be kind of confusing if you don't. For our 2018 Sprinter, our Key Fob uses CR2025 Batteries, 2 of them stacked on top of each other, positive side up, negative side down. If you're not sure what to do, hopefully this video will help.