BMW 750i engine shifting malfunction possibly related to coil and spark plug replacement on BMW 750i

Some BMW 750i owners report experiencing engine shifting malfunctions potentially linked to issues with the ignition coil and spark plugs. These problems may arise due to faulty ignition coils, which can cause misfires or weak sparks, negatively impacting engine performance and leading to drivetrain issues. Additionally, old or defective spark plugs can further contribute to these malfunctions. The cost of replacing an ignition coil can range from $65 to $600, making it important to address these concerns promptly. For diagnosis, some owners find it helpful to swap the ignition coil from one cylinder to another to identify any faulty components. Addressing these ignition-related issues may help resolve the engine shifting problems being experienced.