I had a 2016, MK3 auto, about a year ago, and I changed my rear pads.
I am not overly mechanically minded, but I found a number of YouTube clips, which were really helpful.
I found it quite simple, to wind in the pistons, with a 6 inch bar, placed in the slot of the piston. Clockwise!
I changed the pads not because they were worn, but because the handbrake was never very effective.
Take the opportunity to grease the pins at this time.
After the new pads had bedded in, I still did not find the handbrake very effective, but OK for the MOT.
I am on a MK4 Jazz now, and with a five-year servicing plan in place, it’s not a job I will have to do in the future, as I will sell it in 4 years time!
😉