I would Verify battery voltage, if far too very low the motor will never crank. You will have a parasitic attract draining the battery. - Nick at Pelican Components picador Can be carried out in quarter-hour in case you've done it in advance of; possibly one hour for 1st-timers. Plenty https://mercedessteeringwheellock42822.boyblogguide.com/27728230/the-5-second-trick-for-mercedes-ignition-switch