22 MayProgram Mercedes W221 All Keys Lost with CGDI MB and AC Adapter
CGDI Prog MB is possible to program Mercedes Benz W164 2009-/W221 2009- in 2 ways: via OBD and on bench.
OBD mode takes about 2 hours.
Bench reading shorten the online calculation time to less than 4 minutes. (This requires CGDI MB AC adapter).
Here’s the how-to guide to program W221 all keys lost with MB Key Programmer CGDI MB on bench.
Step 1: Calculate Password
Open CGDI MB software
Turn the quick collect adapter switch to the Platform position
Turn ignition switch to ON position
Collection is done.Very fast.
Press Query Result to calculate pass
Step 2: Save new EIS data
Go to EIS->Read EIS data
Step 3: Generate Key File
Select Generate Key File function
Step 4: Write Key
Go to Read/Write Key->Read Key/Chip