Hi, I have a 2003 749s that has been running perfectly for ages 
This morning I was around 7 miles up the road , cut out, orange engine light on , checked the codes - ignition coil faults 10.1 10.2 11.1 11.2 . Gave it five minutes, turned on ignition , orange light had gone off , it started and ran . No more issues for rest of journey.
Any tips on were to start on rectifying this problem ?