2000 VW Jetta VR6 2.8 L overheating?

I haven't worked much on VW, volvos or saabs. So this JEtta is overheating, just checked it out and noticed the cooling fan kicked in at 220 F (which is 3/4, half way gauge mark is 190 F). Seems to me like the fan is kicking in too late according to my experiences with american and japanese made cars. My instinct tells me to repalce the thermoswicth, if anyone has experiences with jettas and there's other things known to cause the above mentioned problem please share .