Misfire on acceleration. Using BimmerLink can see the spark burn duration for each cylinder. Cylinder 4 had low millisecond duration compared with others. Changed coil. Problem fixed, misfire gone. No more error codes. The error codes associated with this problem were as below. All cured with new coil.
2EFE: 0x2EFE combustion misfire, multiple cylinders: detected
2F01: 0x2F01 combustion misfire, cylinder 4: detected
2EE0: 0x2EE0 combustion misfire, multiple cylinders: injection shutdown
2EEA: 0x2EEA combustion misfire, cylinder 4: injection shutdown
2FAA: 0x2FAA ignition, cylinder 4: burning time too short