VW Jetta MKIII 1991–1998
96 jetta gl 2.0 157k miles, 5sp
i changed my oil last week and when i took off the oil cap, the underside was covered with a sort of goup. the engine coolant is full of what i'm guessing is oil. Also, my heat does not work. My brother in law says he thinks its the oil cooler. is this it...