What is the sound of one piston slapping?
What is the sound of one piston slapping?

Every once in a while I check out what people are offering to trade for Harley-Davidson’s. This week something special caught my eye:

Illustration for article titled School me on E46 M3s - Potential acquisition incoming.
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I’ve always been a big fan of E46's, especially the M3 variant. I had a 2002 325i a few years back that I loved. I still miss it whenever I think of it, especially when I pass a clean one in traffic.

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While I became intimately knowledgable on the E46's during my ownership, I didn’t really delve into the M3 specific stuff. I know about the Vanos issue and the rear subframe but other than that, I’m lost. I also know that the SMG can be troublesome but this one is a 6-speed.

Any info would be greatly appreciated.

Pic of the bike I might be trading:

Illustration for article titled School me on E46 M3s - Potential acquisition incoming.

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