2012 mondeo rear brake pad replacement

[Gdog6]

Hi guys, looking at replacing my rear brake pads, discs don't need doing.
I have been doing lots of research here and on YouTube.
My question is ,when winding in the piston, am I best to crack open the bleader, or take the lid off the master cylinder?
Seems to be a lot of debate about dirty fluid getting into the ABS unit if it is done by taking the master cylinder top off and pushing the fluid up through the lines.
I will also flush the fluid after doing the pads. Do I start at the left rear, then right rear, left front ,right front, like in the old days?
Any help greatly appreciated.

[cobrin]

Hey Gdog6 welcome FF!

There's no need to crack the bleeder but you can do so, I used long nose pliers and simply pushed and rotated the piston at the same time. You need to know the level in the master cylinder cause it'll rise so pull some fluid out to its low level and do one side and then check before doing the other, top up when you bleed/flush it.

just like the old days, further most corner to the closest, of the driver that is. One man brake bleeder is handy.

[NZ XR6]

If the fluid has been changed regularly, there shouldn't be an issue.

I tried long nose pliers without success as the piston was too stiff, but have used a universal cube style tool on other rear callipers.

[Gdog6]

Thanks for the replys guys, much appreciated. Got the job done today, no problems.
When I thought about it a bit more, I decided if I'm going to flush the fluid I might as well crack the bleaders.I also took the top off the master cylinder!
I didn't fancy trying to wind the cylinders in with long nose pliers,so I had purchased one of the cubes from my Chinese friends for $7 . Worked a treat, no problem.
I didn't know how long it had been since the fluid had been changed. It was an ex lease car with no service records. It must have been done though, the colour wasn't too bad.