Keydiy PAK09 Phone as Key

Mercedes FBS4 Full Keyless Key Add by KEYDIY PAK09 with KD-X4

Posted on February 6, 2026 by eobdtool.co.uk

keydiy pak09 add benz fbs4 keyless key 18

This tutorial provides detailed instructions on how to use Keydiy PAK09 Phone as Key and KD-X4 key programmer to add new full keyless keys for Mercedes-Benz FBS4 vehicles. Preparation: Keydiy KD-X4 Key Programmer with mobile app Keydiy PAK09 Phone as Key… Continue Reading →