When a plan, an action, or a situation "goes wrong", it means that there are problems:
What went wrong at your birthday party?
If anything goes wrong, call me immediately.
When an object, like a car or a toilet, has problems, you don't say that it "went wrong". Instead you say "it's messed up", "it broke", "it has problems", etc.:
The hood of my car is kind of messed up.
My laptop broke last week. I have to get a new one.