What was your issue in the end?
My 2007 1.9TD has a similar issue. It was having a service at the old Saab dealership garage, they called me to say it needed a new battery (I had not had any battery issues so far), so new battery went in yesterday. Now trying to go home from work, seems to be no power, remote doesn't work. Sat in the car using the key on the passenger door, and nothing happens when using the keyfob, no power, but I can hear some quiet noise coming from the front when I was trying to start it.