Xhorse VVDI MB Universal Benz FBS3 Keyless Smart Key with 200 Free Points Renewable 433/315MHz

Benz FBS3 MB BGA KeylessGo Key 433Mhz

Frequency: 433MHz
Connection by USB for data read and write
Write by IR vehicle coverage:
Mercedes with FBS3 after year 2009: 

As long as you can read the Ignition Switch's data and collect the correct password, the key can match the same function as the OEM keyless go.
S-W221（2010-2013）
GL-W164（2010-2012）
ML-W164（2010-2012）
R-W251（2010-2017）

S series W221 W216: YES!
ML/G/R sries W164 W251: YES!
2010-2014 C & E series: NO!
Compatible with VVDI MB tool

Note:
The key does not come with battery. 
Not reusable
The key can be programmed as normal key.