Bad review on CAS2 sync with CGDI BMW:
only done 1x CAS2 with CGDI – 2006 E90 Diesel
ELV sync was OK
CAS sync failed, ERROR and would not start
car did not start until i used another tool to do the CAS sync
Good Review 1:
I’ve done many e60 cas2 no issues (with CGDI BMW), more than I can remember. only 2 times crank no start and needed resync. 1 vehicle is because power died from bad battery customer did not tell me battery dies after few minutes, and 2nd time I did add key and got error, I usually never do add key and always just generate and works good, so maybe that caused.
both times fixed by disconnected battery both + and – and let sit for 20 minutes, reconnected battery and used ista/d to resync. car starts right up after sync.
Good Review 2:
have little problem. with cas 2 when add dealer key with remote or key .
new key change on e60 km to miles and today remote on e91 change language french to german just with this added Key ori key no problem .
Good Review 3:
I know CGDI isn’t perfect, but it is, in my experience, a useful tool and good value for money.
Every tool can cause cas/ews/dme/dde synch issues on BMW, particularly diesels and you need a good solution to resynch. I had a very experienced key guy message me the other day about an E91 that had lost synch using AVDI. It’s nothing to do with the tool used, it’s the process.
I don’t even try to use a key tool to resynch ews/dme. Use a good BMW diagnostic and, more importantly, know how to do it.
Ista D is ideal, but it’s hardly a 10 second process. You do it your way. I’ll do it mine.
how to use ISTA D to do a Synch, after battery reset?
Clear dme/dde fault codes
Wait 20 mins. Count it. Don’t be impatient.
Ideally, connect battery support unit.
Check no fault codes. Do not try to start car.
Do cas/ews to dme/dde resynch.
Ista D – service functions. Just follow the instructions.