I would like to clean up and grease rear brakes on my Superb III equipped with e-handbrake.

I do have OBD11. I am wondering what is the best way to do this job without messing up e-brake logic as I am not going to change pad but putting the same once back after cleaning parts.

Shall I retract the piston fully and after installing old pads run them back to starting position?

Anyone?

Put the calipers in service position and dismantle. We would take the calipers carriers off and put then in the buzz tank for a couple of hours with some rust eater. I did this on a Passat yesterday with its fronts and after cleaning, painted them with Bilt Hamber Hydrate and the weld through zinc primer with Wurth ally paste in the pad grooves.