I have a 96 TA ws6 and it overheats past the 210 mark almost to the red. I have flushed out the radiator, changed the thermostate from 180 to 160, and it stills does it. I checked the fan to see if it is turning on and it does. After i drive it i let it cool down and i have to refill the radiator just a little bit, because it evaporates. I have also checked for holes in tubes but nothing, does any one have an idea!