I know my glow plug relay is bad in my '83 240d...... I've got one on order, and in the mean time, I pull the relay module out from it's case and use a plastic spring clamp to MAKE the relay contact and she starts right up......

My question is has anyone (besides me) ever pulled the wires out of the 4-wire control connector (in the course of troubleshooting) and accidentlly touched the violet wire to the black/red wire? It turns the starter over!!!! I had the key on, and never tried it with the key out, but I was pretty impressed........ If you hold them together long enough, it'll start................

man.......it's past my bedtime.

phil

Does it work without the key...

-Jim

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1995 S350D, Green with black leather interior.
Bought January 2008 w/ 233,xxx miles.
I did 22,000 miles during the first year of ownership.

makes sense, that wire senses the starter voltage and deenergizes the glow cycle... unless there was a diode to prevent reversal of voltage... it would start, until the key out let vacume build up and kill the engine... unless you remove the brown line from the stop diaphram.... oops.
of course without the key there would be no way to steer the car...unless... nevermind.
John

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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 190D 2.5Turbo
1987 190D 2.5-5SPEED!!!

1987 300TD
1987 300TD
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!

Interesting..Wow, that coulda been a disaster, had the car been in gear

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1985 Euro 240D 5 spd 140K
1979 240D 5 spd, 40K on engine rebuild
1994 Dodge/Cummins, 5 spd, 121K
1964 Allice Chalmers D15 tractor
2014 Kubota L3800 tractor
1964 VW bug

"Lifes too short to drive a boring car"