PLEASE HELP! CAR WON'T CRANK WHEN HOT. WORKS GREAT WHEN COLD????
1993 Mercedes Benz 190e
September, 3, 2011 AT 4:10 AM
1993 mercedes 190e will not crank when hot. Replaced starter w/solonoid, and new ground direct from battery to frame done with no results. Battery like new. Cranks and runs great when cold. Can hear relays clicking when attempting to start when hot and all lights are on, but will not even crank until cools 30 minutes to an hour. Any suggestions?
Thanks for the response. However, let me revise my question. Engine starter will not engage when motor is hot. If restarted immediately, the starter will engage and run without issue. However, if allowed to sit 15-20 minutes, it will not even crank. It is as though power is not reaching the starter. Seems to be obviously heat related. I have replaced starter/solonoid and established a second ground so far with no different results. Any further suggestions?
September, 3, 2011 AT 10:52 PM
Could be a blown fusible link, the starter, starter relay, clutch switch/park and neutral switch/transmission position switch and ignition switch assuming the battery condition and connections are good. Note: If it doesn't apply disregard.
September, 3, 2011 AT 11:05 PM
Thanks again for the response. And yes, I agree. I believe it is either ignition switch or neutral safety switch. Looked up how to replace neutral switch and looks to be a pain since it is located on top of the transmission. Decided to bypass with hotwire straight from battery to starter then starter to toggle switch under the dash. Bypassed all the relays and switches. Now starts like a charm. What is strange though is that when I start with bypass toggle then turn back off. It will start again immediately the next time with the key no problem. Not sure, but I appreciate your help.