How-to program Mercedes Benz W500 Year 2008 chassis W221 key with VVDI MB BGA Tool when all keys lost.
Step 1: Read EIS Data
Choose chassis W221 and read EIS data
Reading data success.
Save EIS data
Save HC05 format file
Step 2: Calculate password
Select Password Calculation
Select IR mode and chassis W221
Press Data Acquisition
Connect VVDI OBD cable to OBD on bench before continue
Connect IR adapter to VVDI MB before press OK
Take out and insert again if already inserted
Wait until calculate password success
Step 3: Prepare key file
Go to Prepare Key File->Load EIS file
load EIS file
Select key format v51 and press Prepare Key File
save key file
Step 4: Write Key
Go to Read Write Key
Identify key and Load Key file
load a key file
choose key file format v51 and press Write
VVDI MB Tool write key success
Test EIS status/Working Key->Test working key
Insert working key to VVDI MB IR reader before press OK
Insert working key to EIS
Insert working key to VVDI-MB IR reader
Test working key okay.
Start vehicle with the new key.
Done.