E46Fanatics - View Single Post - ***The Official M56 SULEV Warranty Documents, Check-in, and Questions Thread***
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Old 11-10-2012, 12:54 PM   #127
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Originally Posted by gselsidi View Post
They even mentioned new pistons that add to the emissions efficiency so technically that seems like it should be covered also.
Hmmmm I know the piston diameter is the same - our VANOS uses the same seals as the M54. As far as being a different part, I thought they were the same I'll check again

I know the actual engine pistons are different - they have a different design on the combustion face.
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