Changing The Plugs on the 300M

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Here’s a close up of the torx and the seal.

Tighten all the coils down and you’re done. Should only be about a 40 minute job for most people. Took me about an hour because I haven’t “worked” on a car for years and had to find the right tools, and I took all these pictures too! Enjoy the extra peppy M. Mine is anyway!