I'd personally check battery voltage, if much too low the engine will not likely crank. You'll have a parasitic attract draining the battery. - Nick at Pelican Parts picador hello there I am owning the same trouble with my 2011 w204 [c300 Activity 4matic] I altered the battery yesterday and https://trentonavsjg.bloggosite.com/34629822/a-secret-weapon-for-mercedes-steering-lock-emulator