My 2003 M3 with 50K miles failed one of the categories. (HC-hydrocarbo means incomplete burned oil)
The dealership said, checking -$175 , fixing depends on the parts varying from $500 to $2000.
Post the question into M3 forum, people kindly replied my post and made the suggestions,
1. buy fuel injection cleaner ($12 chevron techron) and use it. NOT to buy the cheap ones.
2. drive the car for 20 mintues before going to the check station. (not sure how this can help; i suppose other people had the practical experience)
My own conclusion,
3. dont buy a performance car next time.
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