I now have the SES light ON and my idle + low RPM acceleration is erratic. The OBD code is P02CE "Cylinder 2 fuel injector offset learning at minimum limit". I will call the dealer Monday morning to schedule a service.
I have 39K miles and still under warranty. It seem to me that the injectors on the 335d are not that reliable! Maybe I should consider a good extended warranty!
I hope you get it resolved with your extended warranty.