TOP SECTION OF HEATER CORE CRACKED OPEN WHILE ENGINE AT IDLE SPEED ALLOWING VERY HOT COOLANT TO ENTER THE COCKPIT DRIVER AND PASS. SIDE AT THE FOOT LEVEL. AFTER EMAILING OTHER VW OWNERS GOLF, JETTA, GTI, PASSAT THEY HAVE REPORTED SAME PROBLEMS DUE TO FACT THAT VWOA USES THE SAME PART ON THESE CARS. ALSO FOUND A SAFETY RECALL W/ WWW.ALLDATA.COM WITH TSB # CMPGSD ISSUED MAY 1992 RE: HEATER CORE.