VVDI BE Key Pro Benz W221 KeylessGo Not Working Solution

 Problem:

I’ve made keys for a few w221 s-classes and x166 gl, they all had original keys and keyless go function but the new keys don’t work with keyless go.
I’m using Xhorse VVDI BE Key Pro XNBZ01EN and programming with im508s.
Any solution to this?

Solution:

The VVDI BE Key Pro (XNBZ01EN) keys work for starting but not for Keyless Go on W221 & X166.

The key you are using is not keyless go you need FBS3 keyless go just as this picture here.

After getting the smart box key it as procedure you need to write the file first before putting battery in smart key and the light in the key will flash for some mins change frequency to 314mhz.

For smart key/keyless go you must use this FBS3 smart key.

They have extra big coil on board to catch signals from around antennas and are 3..4x times more expensive as normal dash key.

www.vvdishop.com