We name five model years that suffered from engine stalling, coolant leaks, electrical glitches, and drivetrain malfunctions.

These include the BMW Z4 M40i, 440i, M340i, M240i, X3, X4 M40i, X5, X7, and even the ... on the Bimmerpost forum, problems with the valve cover were most common. One driver of a loaner 2018 ...