2002 AUDI A4 WITH 370K BURNED A BIT OF OIL WHICH WAS FINE CLEANED THE ENGINE OUT WITH CLEANERS IT SMOKED A BIT WHICH IS NORMAL.. HEADLIGHTS STARTED FLICKERING 'HIDS' SO I PARKED IT. 3 DAYS LATER I GO TO TAKE THE CAR ON A TEST DRIVE AND THE DRIVERS HEADLIGHT LIT ON FIRE ! NOT SURE IF IT WAS A HEADLIGHT ISSUE OR A WIRING ISSUE.. INSURANCE WILL NOT COVER IT.