What are people using when changing their brake pads/disk on a L405 to push the pistons back in the caliper? Of course after put the parking brake into service mode! Is there some a specific tool is is there something generic that you guys use and point me to, preferably on Amazon as I have a gift card balance on there!

I use this https://www.screwfix.com/p/hilka-pro-craft...eces/9796r which you can also find on Amazon.

For the rears a basic wind back tool. I often have to stick a socket on the end of it to make the tool reach down into the centre of the piston. ( I dont use the discs that are meant to match the piston. )

I need to get a tool for the fronts though. V8 or else ...

That is interesting, do the pistons at the back on an L405 have to be wound in? Do they not just push back in? Will obviously make a difference to the type of tool that I buy.

The Draper Pro tool is good and cheap, lots on eBay  “If it ain’t broke, don’t fix it” -where’s the fun in that?

The pistons push back in.https://www.youtube.com/watch?v=ha5epFI56X4