Did you buy a new reservoir?
There is a small filter fitted in it - if it’s not been changed for a good time, it’s worth switching it for a new one when you change the fluid.
Well yes - I imagine most places use fairly generic photos for thing like brake pads, rather than taking lots of individual photos of very similar-looking boxes and items.
The e-assist is a big help without it I doubt that the cycling would be possible.
But, I do my best to keep the e-assist level low enough that I am also putting effort into the system against the resistance so that my muscles get a bit of work to...