This bulletin applies to 2018 BMW 340i GT xDrive vehicles. The engine may run rough or hesitate when accelerating from a stationary position and DTC FC 21A02D (combustion control” valve lift correction at idle) may be set in the DME fault memory.
This bulletin applies to 2018 BMW 340i GT xDrive vehicles. The engine may run rough or hesitate when accelerating from a stationary position and DTC FC 21A02D ("combustion control” valve lift correction at idle) may be set in the DME fault memory.
The cause is a software error in the DME (digital motor electronics). Update the vehicle software using ISTA 4. 10.20 or higher to integration level 18-03-520 or higher.
Do not replace any parts to specifically address DME FC 21A02D.
