Advice on Transmission

die älteren Modelle (T1), inkl. Skipper und Marco Polo
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EldoNixo
Beiträge: 8
Registriert: 08.10.2024 03:39

Advice on Transmission

Beitrag von EldoNixo » 16.09.2025 17:38

I recently got my beautiful low-mileage 1985 309D Westfalia James Cook running, but on my first trip, I hit something in the road and damaged the bellhousing. My insurance company has found a couple of transmission options for me. I had a 711.112 transmission. While I have only driven less than a thousand miles, I found I did not need the low ratio 1st gear and wished for an overdrive transmission.

I have the option of a 711.110 with the same ratios I had in the 711.112 or the option of a 711.113 transmission with an overdrive. Is there any reason I should not choose this transmission? I will be driving on highways often, and I think I would appreciate being able to drive faster and more easily have conversations while driving.

I will not be driving in the winter weather, nor do I anticipate driving in off-road conditions.

711.110/112 Gears / ratio
1st gear / 6,157
2nd gear / 3,148
3rd gear / 1,743
4th gear / 1,278
5th gear / 1
reverse / 5,347

711.113 Gears / ratio
1st gear / 4,695
2nd gear / 2,401
3rd gear / 1,436
4th gear / 1
5th gear / 0,806
reverse / 4,078

Thank you for your advice and opinions.
1986 Westfalia James Cook on 309D
1968 Mercedes 280SE Coupe (W111)
1995 Mercedes 300D (W124)
2016 Mercedes E350 Estate Wagon

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AndiP
Beiträge: 2942
Registriert: 25.06.2009 13:56
Wohnort: Soest

Re: Advice on Transmission

Beitrag von AndiP » 17.09.2025 07:41

Hallo, wichtig zu wissen:
Welche Achsübersetzung und welche Reifengröße fährst du?

Der OM617 hat nicht viel Drehmoment und braucht hohe Drehzahl, um die volle Leistung zu liefern. Eine zu lange Gesamtübersetzung ist nicht sinnvoll.
1985er JC 309D mit 530.000km

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