This bulletin applies to 2017 BMW 320i xDrive and a host of 2-Series, 3-Series and 4-Series vehicles. During acceleration in a high gear with engine speed range of 2,000 – 3,000 rpm, the vehicle may jerk. This may be due to unfavorable programming of the digital motor electronics (DME).
BMW Lousy Idle
This bulletin applies to 2018 BMW 340I GT xDrive vehicles. The vehicle may run rough or hesitate when accelerating from a stationary position and fault code FC 21A02D (combustion control: valve lift correction when at idle) may be stored in DME fault memory.