My car is a 1996 C280 with 117K miles on it. Recently I have been getting a Cylinder 2 Misfire. I just replaced all 3 spark plugs but from my understanding Cylinder 2 uses a coil pack. How hard is that to change and should this be my first route or should I try something else.

Unrelated Stuff:

Had a freon leak which has been fixed
Water pump was replaced about 3 months ago

THANKS

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2004 CLK500
2000 S500