Section 58 (Diagnostic Trouble Codes With Test Charts): Summary
WARNING: This page does not describe the selected car, but rather 14 other vehicles, including the 1998 BMW Z3, 1998 BMW M3, 1998 BMW M Roadster, 1998 BMW 750iL, and 1998 BMW 740iL. However, it is still accessible from the selected car via links, so may be relevant.
If no hard DTCs are present, driveability symptoms exist or intermittent DTCs exist, proceed to TROUBLE SHOOTING - NO CODES article for diagnosis by symptom (i.e., ROUGH IDLE, NO START, etc.) or intermittent diagnosis procedures.