Mercedes Key Fob Not Working? Replace the Battery in 30 Seconds! 🔋

Replace your Mercedes key fob battery in under 30 seconds! No dealership needed – just a CR2025 coin cell battery 🔋 No tools. No stress. 100% DIY. ✅ Compatible Mercedes models: • C-Class (W204/W205) • E-Class (W212/W213) • S-Class (W222/W223) • GLC / GLE / GLS • CLA / CLS / A-Class Subscribe for more smart key hacks, car tips, and DIY solutions!