Bmw x5 e70 change dme and cas then car start no problem only km in insturment change and comfort access not work i return back original dme and cas instrument km not change to stock again and also comfort access not work - i want enable comfort access again and old kilometer
Now what's the problem ? Maybe fa change ?

If you changed CAS, there will be many things to change like CAS VIN (from CAS replacement), CAS FA (from FA manager), encoding the CAS..etc.

I return back original dme and cas but have two problem 1- comfort access not work before work
2- kilometer in instrument changed to used cas and didn't return back

You asked before about mileage and both of us (Findlaybum and me) told that it will take the higher mileage, now you have to edit the mileage by DUMP.
For comfort access, is there any fault code in CAS? have you changed the keys slots locations? (Key programming option 1)

Thank's autohex - problem solved