Author Topic: 6.9 starter  (Read 1424 times)

Mattr

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  • 6.9 in a 450SE
Re: 6.9 starter
« Reply #30 on: 22 June 2020, 05:13 PM »
The hot cable goes on the big M8 post on the solenoid (next to the two screw terminals).

Tim
Isn't that where the larger of these three cables goes? Do both connections go onto that post?
I recently went through this.  But my memory is imperfect so cross check.  Anyway, not sure what you mean by "both."  The solenoid has 3 terminals: large, medium and small.   Those ring terminals are connected accordingly.  The large cable goes back to the terminal block under the battery where it is connected to the battery.  Check that.  if you have 2 of the large rings on the starter cable assembly then I'm almost certain that one of them goes back either to the battery or the terminal block.  See this thread too. https://forum.w116.org/mechanicals/4-terminal-electrical-block-under-batter-tray/msg146263/#msg146263.  I've encountered inconsistencies in how these cars are wired.  Post what you find and good luck.  Cheers,
The large cable here is the 4th one I'm referring to. I think it's either 12v main from the battery, or maybe the main ground cable for the battery, and needs to be connected to the frame?

If anyone could snag a photo of what their starter looks like, properly connected, I'd be thrilled.
1976 450SE 6.9 FrankenBenz (#2288?)
1977 450SEL 6.9 #2333

raueda1

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  • Posts: 543
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  • Location: Salt Lake City, Utah
Re: 6.9 starter
« Reply #31 on: 22 June 2020, 07:00 PM »
The hot cable goes on the big M8 post on the solenoid (next to the two screw terminals).

Tim
Isn't that where the larger of these three cables goes? Do both connections go onto that post?
I recently went through this.  But my memory is imperfect so cross check.  Anyway, not sure what you mean by "both."  The solenoid has 3 terminals: large, medium and small.   Those ring terminals are connected accordingly.  The large cable goes back to the terminal block under the battery where it is connected to the battery.  Check that.  if you have 2 of the large rings on the starter cable assembly then I'm almost certain that one of them goes back either to the battery or the terminal block.  See this thread too. https://forum.w116.org/mechanicals/4-terminal-electrical-block-under-batter-tray/msg146263/#msg146263.  I've encountered inconsistencies in how these cars are wired.  Post what you find and good luck.  Cheers,
The large cable here is the 4th one I'm referring to. I think it's either 12v main from the battery, or maybe the main ground cable for the battery, and needs to be connected to the frame?

If anyone could snag a photo of what their starter looks like, properly connected, I'd be thrilled.
Unless you (or someone) did something bizzarre, this is the battery cable.  The ground cable bolts to the frame supporting the battery tray.  The large cable should therefore connect to the large terminal on the solenoid along with the large cable with white insulation.  The latter goes back to the large terminal block under the battery and powers up the rest of the car.  I'd suggest removing the battery and tray so you can get a close look at this stuff and confirm. 
-Dave
Now:  '76 6.9 Euro
Before that:  1966 230S, 1964 220SE coupe, 1977 Carrera 3.0