Chosen Solution
I poured some water on my touch bar area and after a whole night until I found it. The only problem is the touch bar not showing anything and it can still respond to touch. There is not a single scratch except that. So I went to Genius Bar, they charged me $1300! Any one got any idea for that? It is possible only to replace the touch bar screen?
The touch bar can be purchased separately without the top case as a brand new unit. Comes with adhesive on the bottom and a detachable flex cable. The touch bar connects to two ports of the logic board. One outputs power and display to the LED, the other receives input from the touch bar. I am able to get the parts if anyone needs it.
Don’t see any reason why if you can get your hands on a replacement touchbar that you couldn’t replace it yourself. It is just that being a relatively new model there are not a lot of parts to be had. Here is the teardown that shows you how to remove the touchbar: MacBook Pro 13" Touch Bar Teardown
anyone know a step-by-step guide to replacing the touchbar?
Remove the logic board, remove the touch ID button and the touchbar cable is secured with two T4 screws. Use slow heat to dissolve the touchbar adhesive and pry it out carefully. It is securely glued to the top case and very easy to break. Since there are many continued to insist the touchbar cannot replace other than the whole topcase, I will just say this is how I removed the touch bar and it tool a while to finish with lots of back and forth checking.