VW 2003 PASSAT AWD 2.8 L V6 GASOLINE ENGINE...WIFE CALLED ME SAID CAR WAS MISS FIRING BADLY AND THEN SMOKE WAS REPORTED COMING FROM UNDERNEATH CAR. SHE PULLED OVER AND SAW FLAMES COMING FROM UNDERNEATH THE CAR. TURNED CAR OFF AND FIRE LUCKILY WENT OUT...I CHANGED COIL AND PROBLEM WAS FIXED FOR ABOUT THREE MONTHS. NOW CAR IS MISS FIRING AGAIN AND RUNNING ROUGH....I HATE THAT I'VE FIXED THIS SAME COIL THREE TIMES NOW AND IT IS ACTING UP AGAIN... *TR