Williams FM Train Master Question

I acquired a Williams FM Trainmaster. It's bigger than I thought, so it probably won’t see much time on the layout as it currently stands,  but it seems  to run well.

I have a question though.  Did these come with a whistle/bell? When i press those buttons on the transformer the train slows a bit and makes an awful buzzing. noise,  which makes me think yes.

That leads to question two ... who repairs these engines so that functionality is restored, and how much does that usually run?

Here is the train in question...

Here is some video

https://youtu.be/S-e3qK43qUU

Around the 46 second mark I throw it in neutral and hit the whistle button.  It's a CW80 transformer so it didn't stay in neutral but it make that awful buzz.