Fault Description: BMW MSD80 Engine ECU Fuel Injection System Failure
Fault Codes: The following fault codes may be logged in the MSD80 Engine ECU:
1. 30BA – DME: Digital Motor Electronics, Internal Fault
2. 30BB – DME: Digital Motor Electronics, Internal Fault
3. 2DED – DME: Digital Motor Electronics, Fuel Injection Rail Pressure Sensor, Signal
4. 29CF – DME: Digital Motor Electronics, Misfire Detection, Cylinder 1
5. 29D0 – DME: Digital Motor Electronics, Misfire Detection, Cylinder 2
6. 29D1 – DME: Digital Motor Electronics, Misfire Detection, Cylinder 3
7. 29D2 – DME: Digital Motor Electronics, Misfire Detection, Cylinder 4
8. 29D9 – DME: Digital Motor Electronics, Misfire Detection, Cylinder 5
9. 29DA – DME: Digital Motor Electronics, Misfire Detection, Cylinder 6
Affected Vehicles and Production Years: The BMW MSD80 Engine ECU is commonly fitted to various BMW models, including, but not limited to:
1. BMW 1 Series (E87) – Production years: 2004-2011
2. BMW 3 Series (E90, E91, E92, E93) – Production years: 2005-2013
3. BMW 5 Series (E60, E61) – Production years: 2003-2010
4. BMW 6 Series (E63, E64) – Production years: 2004-2011
5. BMW X1 (E84) – Production years: 2009-2015
6. BMW X5 (E70) – Production years: 2007-2013
7. BMW Z4 (E89) – Production years: 2009-2016
Description:
The BMW MSD80 Engine ECU (Digital Motor Electronics) is a crucial component responsible for managing the fuel injection system and other critical engine functions. It monitors various sensors to ensure precise fuel delivery, ignition timing, and overall engine performance.
One common fault that can occur with the MSD80 Engine ECU is a failure in the fuel injection system. This failure can lead to various issues, including rough engine idle, engine misfires, poor fuel efficiency, and reduced engine power.
When the MSD80 Engine ECU detects a fault within the fuel injection system or other engine-related components, it may log one or more of the above-mentioned fault codes to indicate the specific issue. The fault codes “30BA” and “30BB” indicate internal ECU faults, while the codes starting with “29CF” and “29D0” to “29DA” represent specific cylinder misfire detections.