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Old 01-08-2015, 01:40 PM
Registered User
Join Date: Dec 2012
Location: Long Beach, CA
Posts: 15
Exclamation Vacuum kick down module

Good morning,

I'm installing a use auto trans into my 95 e320 wagon. The trans that came out has number 1242712401. The used trans I have is number 1262712101.
The only difference I can see is the one that came out has a vacuum module as part of the kick down. The used one I'm installing has only the cable kick down.

Will the "new" used trans work if I plug the vacuum lines and use only the simple cable kick down? or will I need to transfer the vacuum module?


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Old 01-08-2015, 01:59 PM
JamesDean's Avatar
Electrical Engineer
Join Date: Apr 2005
Location: NE Ohio
Posts: 5,034
Would you happen to know the 722.x number of those transmissions?

Typically there are a few external connections on 722.3 and 722.4 series transmissions.
1) Vacuum
2) Bowden Cable / Kickdown Cable
3) Kickdown Solenoid
4) Neutral Safety Switch

I'm not sure about the 722.5
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Old 01-08-2015, 07:35 PM
Hirnbeiss's Avatar
ich fahre, also bin ich
Join Date: Mar 2002
Location: South Florida
Posts: 1,660
It should have a vacuum modulator on the bottom. See the pictures in this listing:

Mercedes w126 Automatic Gearbox 300SE SE Auto 1262712101 | eBay

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