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      02-01-2012, 09:10 PM   #31
immiketoo's Avatar

Drives: Smoothly
Join Date: Apr 2009
Location: Chicago Burbs

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So after reading this thread, I spoke to my buddy who is the service director of my BMW dealer. He told me this is a legitimate issue with 335s and cars that share that motor due to the carbon buildups that occur in the intake system. He also told me that it is not recommended for M3s as they tend not to could like the 335. He also confirmed that it is a dealer recommended service that is NOT part of the service agreement. He's a straight shooter and I didn't detect any BS. Just seems like a recent addition to service a developing problem on certain engines to keep performance tip-top. FWIW.

Originally Posted by double eagle View Post
Thickness feels good to me and my hands aren't that big.