i have 4 mb diesels. junior janko wants nothing to do with them. i be stupid and easily manipulated. ergo, the following j30 question. have had the thing for a year. second incidence of cranking fine but not starting. first occured in cold of winter with snow coming down. after futzing with it for an hour or so, it finally did start fine. my thought then, water in the gas. second incidence was yesterday. raining, and the car was not started for two days or so. anyone know of something specific to check on this model. intermittant, so i don't know where to start. do i have spark? don't know because, and this is exceedingly embarassing, i can't find the spark plugs/wires whatever. and i can turn a wrench. fuel? haven't checked. again, any help will be greatfully appreciated. and - the search of the 'infinity' sites was an abissmal failure. those of you out there that do not have this site/members in the absolutely highest regard should visit some of the other sites. they be really worthless. thank you.