Posted in 5 series forum, may have been wrong place.
Following some fiddling with INPA, it would appear that my car has lost its CAS>DDE alignment, so the car will crank but not start at all.
I have located the ECU alignment in INPA, but if I attempt it, an error results.
The error is that INPA ECU states DME not DDE so it shows wrong ecu type or something similar.
I also cannot connect to the DDE 5.0 as it tells me communication to control unit disturbed.
I have run error reports and all modules show up ok.
I have some screenshots if anyone could help.