Xtool X100 PAD3 X100 PAD Elite do Key Matching for BMW CAS4 Author: xtooleshop.com August 27, 2020 Xtool X100 PAD3 X100 PAD Elite do Key Matching for BMW CAS4 Firstly, prepare a black new key before matching Here is the steps on how to programming Step 1, open the X100 PAD3/X100 PAD Elite Xtool X100 PAD3 x100 pad elite, x100 pad elite bmw cas4, x100 pad3, xtool x100 pad3