DIY BMW - How to change SmartKey Key fob Battery on BMW X3 X5 X6 - YouTube
Amazon.com: Replacement Key Fob Case Shell Fit for BMW 3 5 Series BMW X5 BMW X6 BMW Z4 Keyless Entry Remote Car Key Fob Cover Casing with Uncut Blade Blank : Automotive
BMW Key Fob Battery Replacement (Comfort Access) - YouTube
BMW Smart Key FOB Battery Replacement Series 1 3 5 7 X5 Car Remote | eBay
How To Change BMW Key Battery | Competition BMW of Smithtown
Battery replacement service for BMW 3 button remote key 2004 - 2015 – Remotefobcentre
Error: Vehicle Key. Battery Discharged" - G20 BMW 3-Series Forum