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Solution for error codes 30BA and 30BB at BMW ECU

Siemens VDO DME MSD80 - ECUs
Siemens VDO DME MSD80

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The Siemens VDO DME MSD80 ECU plays a crucial role in regulating various aspects of engine performance. Error codes, such as 30BA and 30BB, can occur due to problems with the ECU and are of great importance in diagnosing and solving these problems. The description of this fault code is therefore "DME Digital Motor Electronics, Internal Failure". DME thus stands for Digital Motor Electronics and is a name that BMW does often use for an ECU.

In which BMW models do fault codes 30BA and 30BB occur?

Symptoms of fault codes 30BA and 30BB

When fault codes 30BA and 30BB occur, the following symptoms may be observed:

  • Loss of power: the engine does not operate at full power during acceleration
  • Irregular performance: jerky or irregular idling
  • Engine malfunction light: the engine management light (MIL) comes on
  • Starting problems: the engine struggles to start or sometimes does not start at all
  • Increased fuel consumption: inefficient combustion increases consumption

Often, fault codes are also read indicating misfires or injection problems.

Solution for fault codes 30BA and 30BB on BMW

In most cases, the cause of fault codes 30BA and 30BB lies with the Siemens VDO DME MSD80 ECU. This ECU fails due to thermal stress and wear. Revision of the Siemens VDO DME MSD80 is therefore the solution. ACTRONICS offers an effective overhaul solution for the Siemens VDO DME MSD80, where the ECU is thoroughly tested and fitted with new components to ensure long life and reliable operation. Still have questions? Then feel free to contact us!