NHTSA Complaint #11377436 — 2012 BMW X5

THE ENGINE STUTTERS OFTEN (EVERY DRIVE), AND ONCE IN A WHILE PRODUCES THICK WHITE SMOKE FOR A SECOND OR TWO WHEN ACCELERATING. THE ENGINE ALSO SUFFERS FROM HIGH OIL CONSUMPTION (I HAVE TO ADD A QUART OF ENGINE OIL EVERY 200 MILES). I'VE ALSO HAD TO REPLACE THE SPARK PLUGS TWICE IN THE LAST 3 YEARS BECAUSE THEY ARE FOULED WITH OIL AND SOOTH AND THE ENGINE MISFIRES. DEALER IS STATING THE ISSUE IS RELATED TO S63 ENGINE VALVE STEM SEALS, AND RECOMMENDING THAT THESE BE REPLACED, BUT THE WORK WILL COST $7000 AND ISN'T COVERED UNDER WARRANTY! THIS IS CLEARLY A VALVE STEM SEAL DESIGN DEFECT OR INITIAL PRODUCTION/INSTALLATION DEFECT DEALER ALSO CLAIMS THIS IS COMMON ON E70 MODELS.*DT*JB