Amazon.com: Car Key Fob Replacement For BMW X3 X5 528i 535i 750i xDrive KR55WK49863 CAS4 Keyless Remote 315MHz FCCID:KR55WK49863;by AUTO KEY MAX (1) : Automotive
Replacing the battery - Remote control/key - Opening and closing - Controls - BMW X3 iDrive Owners Manual - BMW X3 | BMWManuals.org
How to replace / change key fob battery on BMW X2, X3, X4, X5, X6
How to Replace BMW Key Battery | QuickPro Locksmith
Repair Service for BMW 1 3 5 6 7 series X3 X5 3 button remote key battery case 5060234032548 | eBay
BMW X3 E83 Key Battery replacement - iFixit Repair Guide
2011 bmw x3 key fob battery replacement - Google Search | Bmw x3, Fobs, Key fob
Amazon.com: HQRP Key-Fob and Battery Compatible with BMW X3 E83 2004 2005 2006 2007 2008 2009 Remote Shell Case Cover Smart Key Keyless FOB : Automotive