2021 C63s Engine/Cabin Air Filter Swap (OEM<K&N) DIY
I would recommend using the HOOD Extenstion, when you open your hood to its stopping point, then press the red button on the drivers side arm, and it will open the hood straight up. (makes it easier to get to things more so in the back of engine bay.
Much to my surprise, the oil filter appeared to be split along one of the pleats. There was also quite a bit of air I had to bleed out of my brake lines, resulting in me needing 2 qts of brake fluid to compete the flush. Definitely figured out why my brake pedal felt spongy and inconsistent!
Disappointing to find these defects from the factory........


