trans. adjustments on 1976 300D - Mercedes-Benz Forum

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post #1 of 11 (permalink) Old 04-19-2014, 05:55 PM Thread Starter
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trans. adjustments on 1976 300D

The car is a 115114 12 037979 model. The transmission number is 123 270 12 01 000 36
I have a manual but my computer won't load it for some reason. I'm wondering what the procedure is for adjusting the bands. There is no Bowden cable or vacuum on this transmission.

Thanks for any info.,

Gus
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post #2 of 11 (permalink) Old 04-19-2014, 08:29 PM Thread Starter
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OK something that may shed more light on this problem. In the fuse box is a fuse for an electronic automatic transmission adjustment????? Also there IS something with four wires going to the tranny where it looks like the modulator would be if it had one. This thing must be some kind of morphodyte or something. Good car though I've had it for years. Just need to get it transmissioning again

Last edited by 2_300_D; 04-21-2014 at 07:29 AM.
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post #3 of 11 (permalink) Old 04-20-2014, 01:24 PM Thread Starter
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OK, guys I got it.

Drained a little fluid out and put in some conditioner. Took her for a drive and it got better and better. Next thing on the agenda is a filter and fluid change. She's been sitting awhile since I bought my 95 E300D I suppose she's gummed up.
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post #4 of 11 (permalink) Old 04-20-2014, 02:37 PM
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Quote:
Originally Posted by 2_300_D View Post
OK something that may shed more light on this problem. In the fuse box is a fuse for an electronic automatic transmission adjustment????? Also there IS something with four wires going to the tranny where it looks like the modulator would be if it had one. This thing must be some kind of morphodyte or something. Good car though I've had it for years. Just need to get it transmissioning again
So, is it a manual or an automatic? I can't make heads or tails of what you're saying, and I have two college degrees.

Felicita e un bicchiere di vino con un panino.
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post #5 of 11 (permalink) Old 04-20-2014, 03:01 PM
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I assume he's wondering how upshift timing (bowden) and shift quality (vacuum modulator) are handled on the earlier automatic transmissions, which apparently lack these external features. The use of the term manual in the OP is a bit confusing, since he's referring to the FSM vs. a manual transmission. I'm only familiar with 722.3 and 722.4 transmissions, so I can't provide any direct assistance.
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post #6 of 11 (permalink) Old 04-20-2014, 03:15 PM
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I assume he's wondering how upshift timing (bowden) and shift quality (vacuum modulator) are handled on the earlier automatic transmissions, which apparently lack these external features. The use of the term manual in the OP is a bit confusing, since he's referring to the FSM vs. a manual transmission. I'm only familiar with 722.3 and 722.4 transmissions, so I can't provide any direct assistance.
The transmission number he gives also makes no sense.

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post #7 of 11 (permalink) Old 04-20-2014, 05:02 PM
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I assume that number is just the MB part number for the actual transmission case, and not the model number
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post #8 of 11 (permalink) Old 04-21-2014, 07:22 AM Thread Starter
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Sorry for the confusion!

Quote:
Originally Posted by flyboyike View Post
So, is it a manual or an automatic? I can't make heads or tails of what you're saying, and I have two college degrees.
I apologize for the misunderstanding. It is an automatic. I guess I assumed the transmission number would be enough information for anyone interested or with any suggestions. Again, I apologize.

It is working now; actually it is working quite well. This is the first time I've ever used one of those miracle juice cures. Quite honestly I've not been a believer but . . .I guess the results are hard to argue with!! All in all the transmission now acts bullet proof. First to second, second to third are crisp third to 4th is smooth with no flare or slippage.

As to the number I referenced in the original post; the first number is the serial number on the car the latter is the number stamped on the lip just above the pan on the right (passenger) side of the transmission.

I am still interested in any information on these older transmissions without a Bowden rod or vacuum modulator. It seems a little odd for a transmission in a car made in 1976.

currently:
76 300D (British red)
95 E300D (metallic charcoal)

Last edited by 2_300_D; 04-21-2014 at 07:28 AM. Reason: spelling
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post #9 of 11 (permalink) Old 04-21-2014, 07:31 AM Thread Starter
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Quote:
Originally Posted by 2_300_D View Post
OK something that may shed more light on this problem. In the fuse box is a fuse for an electronic automatic transmission adjustment????? Also there IS something with four wires going to the tranny where it looks like the modulator would be if it had one. This thing must be some kind of morphodyte or something. Good car though I've had it for years. Just need to get it transmissioning again
I now believe this wiring has something to do with the kick down but I'm not entirely sure. I'm still hoping someone can shed a little light on this.

currently:
76 300D (British red)
95 E300D (metallic charcoal)
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post #10 of 11 (permalink) Old 04-22-2014, 03:45 PM Thread Starter
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nobody knows anything about these transmissions in this cross over year huh?

currently:
76 300D (British red)
95 E300D (metallic charcoal)
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