Q: Does it add new keys for CAS4/CAS4+ via obd2 directly?
A: No, you need depart it and read out the information with other programmer(Xhorse VVDI Prog) firstly, then use CGDI Prog BMW to generate keys.
Q: I have got the CGDI BMW Prog package, but there is no software CD, could you send me download link
A: Yes, here is CGDI BMW Prog Software Download Link, you can download it here
Q: I want to know if the CGDI BMW can program used ECU?
A: Yes, it can program used ECU, but you must make sure erase the used ecu firstly