Date registered: Sep 2006
Vehicle: '07 S600, '00 E320 Wagon, other
Location: Tampa Bay, FL
Mentioned: 1 Post(s)
Quoted: 21 Post(s)
Engine tries to rotate but stops, does not start - Help!
2000 E320 wagon 185k miles. A few days ago turning the ignition key produced no click/no engine turning. Checked the ignition with a scanner - no errors, start signal given. The 10A fuse which controls the little fan for cooling the engine ECU/electronics is blown. I replace the fuse, the car starts and runs ok. I try to start the second time - fuse blown again. So I replace the little fan and now the fuse does not blow.
But the car still does not start, the starter is clicking, engaging but stops after the engine rotates by a few degrees. I check the starter relay just in case, try the relay from another good car, all good. I try a good battery from another car disconnecting the old one just in case it has some internal fault, nothing changes.
So I replace the starter, nothing changes.
Looks like even with a strong battery the result is the same as with an almost dead battery - lights dim, voltage drops, the starter does not have enough power to turn the engine past a few degrees. The starter's 40A fuse does not seem to go to +12V, or maybe it goes for so short that the voltmeter only registers a few volts.
Is something shorting? Where? Is that starter control board with 40A fuse busted and if so how to test it? Any suggestions? Thanks!!!