Engine Controls - Runs Poorly/Misfires/DTC's Set

SI B 12 18 07
Engine Electrical Systems

October 2007
Technical Service

SUBJECT
N54: Running Issues with Various Faults in DME

MODEL
E90, E92, E93 with N54 from 6/10/07 to 8/18/07 E60, E61 with N54 from 6/10/07 to 8/18/07

SITUATION
Vehicle runs poorly, misfires, and may not start. One of the following fault codes, or the combination of the codes, is stored in the DME: 30BA , 30BB or 2ACC. Subsequent fault codes like 29CC, 29CD, 29CE, 29CF or 2ACB may be stored in the DME as well. Service Engine Soon Light may be illuminated.

CAUSE
Defective diode in DME.

CORRECTION
On a customer complaint basis and only if the vehicle is in the effected production range, replace the DME and reprogram/recode the complete vehicle.

WARRANTY INFORMATION
Covered under the terms of the BMW New Vehicle Limited Warranty.

Please refer to the latest KSD for all applicable labor operations and allowances. If the appropriate labor operation is not contained in KSD, then a work time labor operation should be used.

Defect Code 12 71 00 15 00





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