My daughter cracked her radiator on 2008 Jetta 2.5 then drove 2-3 miles no traffic and parked it for 1 1/2 hours. Then she drove home. Didnt see lights or hear the buzzer. I put a a new radiator and drove about 100 miles, 60% highway and 40% locally . Oil looks normal, the antifreeze in reservoir is clean, no radiator cap. Car idles fine fine Do you think it is ok? When do you think she is out of the danger zone on this? A radiator in a jetta is not a fun job