MANDEL: I remember waiting for a glow plug light to go out on the dash of the 300D Mercedes, signaling the all-clear to fire the car. With this new E320 diesel, it’s one quick motion. As the starting ...

Your W164 Mercedes ML 320 CDi glow plug system fault requires a computer diagnostic check and investigation to check whether there is a faulty circuit or output stage problem with the control unit. Hi ...