no crank on c300 w204

What is your question?

changed my spark plugs two days ago, car drove perfectly fine, next day drove fine as well but i parked it for two hours came back and the car doesn’t want to start.. no crank noises. - fuel pump is good - starter fuse does make a click and doesn’t look damaged.. - battery is good as well … i don’t know why it’s suddenly not starting.

What makes this problem better or worse?

nothing it doesn’t crank at all.

How long has your 2008 Mercedes-Benz C300 had this problem?

a day so far