The very few reports of SMG problems furnish no basis to conclude that these are troublesome systems. First, BMW market SMG cars in the last version of the M3 in Europe. The system did not generate reports of abnormal levels of problems/failures. The basics of that system (at the hardware level) carry over to the E46 M3. What has changed is that the software has become far more sophisticated than the version on the earlier system (hence the name SMG II).
Are there any data that show that the SMG system is producing failures or problems at rates higher than stick shift cars???? I for one don't know. I do know that isolated posts now and again do not constitute any form of reliable data since there is nothing to use in comparsion and no basis to calcuate a failure or problem rate.
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