2012 BMW 550I GRAN TURISMO Engine Problems

IN THE MIDDLE OF LAST YEAR MY CAR BEGAN TO CONSUME MORE MOTOR OIL THE FREQUENCY WAS ONE LITER EVERY MONTH AND THEN IT HAS BEEN MORE FREQUENT, WITH THE PASSAGE OF MONTHS THE BMW HAS AN INTENSE DRIP OF OIL WHICH IS NOT NORMAL DRIP ON THE TOP OF THE ENGINE, DRIPPING DOWN THE BOTTOM OF THE ENGINE, I DO NOT KNOW WHAT TO DO, BMW IN THE UNITED STATES HAS IGNORED THESE PROBLEMS, BMW WORKERS HAVE TOLD ME THAT THE CARS MANUFACTURED IN 2012 (X5, X6, N63, ALL SERIES 5, HAVE PRESENTED PROBLEMS OF INJECTORS, SPARK PLUGS, COILS, OIL BLEACHING, THIS BMW KNOWS BUT DOES NOT TAKE ACTION ON THESE PROBLEMS, TODAY I HAVE MY CAR PARKED IN FRONT OF MY HOUSE WITHOUT BEING ABLE TO USE IT, WHEN I START EXPELLING A LOT OF SMOKE FROM THE ENGINE LEAKS, YOU TELL ME THAT I HAVE TO BUY...