Faulty Oxygen Sensor (Lambda Probe) Failure Rate: 12-15%
Faulty Mass Airflow Sensor (MAF) Failure Rate: 10-12%
BMW iDrive System Glitches/Failure Rate: 8-10%
Transmission Issues/Failure Rate: 7-9%
Faulty Rear Wheel Bearing Failure Rate: 6-8%
Rear Main Seal Leaks/Failure Rate: 5-7%
Faulty Power Window Motors Failure Rate: 4-6%
Sunroof Leaks/Failure Rate: 3-5%
Faulty Electronic Throttle Control Failure Rate: 2-4%
BMW iDrive System Screen Cracks/Failure Rate: 2-3%
Faulty High Pressure Fuel Pump Failure Rate: 1-3%
Water Pump Failure Rate: 1-2%
Faulty Alternator Failure Rate: Less than 1%
Engine Bearing Failure/Failure Rate: Less than 1%