Best to remove all wheels and pull the pads for inspection.
The rotor in your image is shot, I would hate to think what the condition of the inside face of the rotors are like.
Alex.
I am dismantling 3 x 350Zs at the moment so all parts are in stock.
Just drop me a PM and let me know exactly what parts you require.
Also make sure that your brake fluid is right up to max with the lid and filter removed.
Alex.