These should be separate but in both cases digging deep on google they could both be firmware updates issues

Mondeo 2007
- 1/4amp battery drain. Could not find any electrical problem. week later battery flat


Astra-H
- Intermittent starting problems with immo light. CIM 1614 1616 fault codes.


These are not young cars though and will report back once I've done the Astra-H (1st time programming with Tech-2)


PS.
This is my 1st posting so apologies if I've done something wrong! / not introduced myself