Jaybs37

Hi all, new here so hello to all. Used the site for information in the past but now I need to ask for help so here I am! Another temp/coolant issue struggling to get up to temp and lowering rather fast when not under load. So, changed engine thermostat, then read about the dsg thermostat but mine hasn't got one. Was wondering if maybe some models have them located else where! Anyone had this before where it's not in line with the dsg cooler? It's a octavia vrs mk2 diesel. Any help would be fantastic. Many thanks, J.