Today successfully read security PIN code and program keys on vw Caddy 2007 by using Xtool X100 Pro key programmer.
Step 1: Read Security Code
Xtool X-100 pro prompts “This feature is not supported for the vehicle”
Go back and choose read security code from Dashboard
select dashboard vehicle and immo type (Sagitar IMMO 3.5)
Back to VW manu
Select Program keys
Login successful, please wait 240 seconds
Please choose Channel Nunmber: 01
Max 2 keys to be programmed
Each key in the ON/OFF position for at least 2 seconds, programming complete.