lol and I was worried at the -10 C temps,, and I just bought a timer ,, 20 amp extension cord re block heater, for the Benz !!! oh well good to know yours is a cold stater,,, have you considered welding up the cracked head? Some bikers have done it but not sure if it works long term.. depends on location ? non iron heads too . I tell you how naive I am about diesels for the first week I had no idea what the glow plug light was for but she started up right away anyway.. :} and 6 months later I was told how to turn the fog lights on !!!! who would have thought of pulling the switch out !!!! well I'm learning ,,,