2002 Volkswagen Golf hand brake /and how to Fit rear pads l

The adjustment for the parking brake is on the lever assembly in the center console. You may need to remove part of the console to access the adjustment rods/nuts.

There is a special tool designed specifically for depressing the piston in a parking brake equipped caliper.
You need the screw the piston in clockwise as it is being pushed in. It can be done with pliers and a standard piston compressor, but you have to be very careful not to damage the piston dust boot.