4321 bmw fault code
7.4 MESSAGE CODES FOR ERROR TREND ANALYSIS REQUEST. FIELD NAME: ... BMW 3. VMO - 28, 30, 20, 318, or any three-character VMO starting with a 5 and ending with 0 ... BMW Fault Codes BMW fault code is an on-board diagnostic code that's integrated into your bmw's self-diagnostic system. How to diagnose and figure out the exact problem. When this light illuminates, you should have your BMW serviced before attempting to manually reset the light. Since 2000, BMW has introduced a new engine marking.