I have a VR6 transplant in a Jetta coupe. Everything runs perfectly. I have a general question. My car idles and cruises b/w 210 and 225 degrees. I am sure this is fine. My question is: At what temperature does one start worrying(250, 275,300?)? Can someone give me their two cents worth. Thank you very much. Oh yeah, one more thing: I also have a 1991 GTI w/ the 2.0 16V. It operates the same way...is the "worry zone" the same with this car? Thanks again.