engine code

I asked this a while ago, and no one could answer. Someone said, it's easy to tell if I can see it. So here's a photo. It's a 1.4.

Bear with me cause i'm used to VW's and i'm a bit of a noob at this.... when checking my oil earlier i noticed the engine code stamped on the block was X16SZR. but i thought all the X prefixes were to denote a 16 valve, and C prefix denoted 8 valves, when mine is just an 8v premier... ???