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Old 06-16-2020, 02:32 PM
Usaguy Usaguy is offline
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Quote:
Originally Posted by dtf View Post
...well I decide to shut the car off instead of let it idle and it is dead upon coming back out. no juice to the starter ...
Quote:
Originally Posted by dtf View Post
got the car back just now and it's running fine - it was the #5 fuse that blew...

This got me to look at the wiring diagrams for W124s and here's what I found:

The pre-92 or 93 W124 diesels have no fuses or relays in the starter circuit.

power goes like this:

unfused battery -> ignition switch -> neutral safety switch (NSS) -> starter solenoid

on a 1995 diesel they added a K38 starter cut-out relay between the ignition switch and the NSS. That relay is controlled by the alarm module.

I didn't trace the wires any further but I think that it is possible that a blown fuse would cause a no-start on a 1995 diesel.


Early cars have a more robust system.
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