Its hard to do when we don`t know your skill level.
First off you need a manual. It will have Torque spec`s,timing marks etc.. All so will show most of the specific tools you will need.

Off the top of my bald spot,you`ll need a Torque wrench, pullers to remove harmonic balancers,gears etc.. You can`t pry a balancer off with a screw driver or put it on with a hammer. This is a sort of generic overview,the manual will tell you the specifics.
I`m not trying to discourage you , I`m just pointing out that its more involved than changing oil.

I learned by reading and doing it myself. But it was Small Block Chevy`s and Racing Karts. A Mercedes is a bit more involved.

Good Luck,
John