This kit allows using 722.6 transmission on W124's. - Mercedes-Benz Forum

 
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post #1 of 10 (permalink) Old 04-23-2017, 11:05 AM Thread Starter
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This kit allows using 722.6 transmission on W124's.

Hello.

Any of you heard of it or tried it?

Here's a link:
New 722.6 Gearbox in you old Car | Mercedes-Benz turbo

Smooth and programmable shifting with having a 5th gear is a huge improvement to W124's, I think.

I think it is at least worth it to upgrade a 1995 +6 cyl. W124's with a 722.6 trans. Think of what it can offer!

I searched and only found it mentioned here with no comments about it:
http://www.benzworld.org/forums/w124...l#post14482962
How come it was never referred to further?

Purpose of thread:
1- Share and discuss, for those interested.
2- Anyone heard of it or tried it?
3- Do you think it is worth it?
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Current vehicles:
1-MB W124 300e 12v 1992 +455k Km (daily drive)
2-Ford Crown Victoria 2009 (used when needed).

Previous vehicles:
Ford Crown Victoria 2001 (sold in early 2009)
MB W124 200 1986 (sold in late 2005)
MB W126 500 1986 (sold in late 2004)
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post #2 of 10 (permalink) Old 04-23-2017, 12:24 PM
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722.6 is a fantastic rock solid transmission. Is it worth it? Financially, absolutely not. If money and time is no objection, then sure.

FS: Rebuilt CIS Distributor only 5k miles on it
FS: W124 1993-1995 OVP Relay (Genuine MB Brand New) PM Me if interested in either items
W124-Zone.com
2008 Black Mercedes E350 4Matic Sport P1 - 122k
1988 Pearl Grey Metallic Mercedes 300TE - 187k
2014 Jeep Wranger Unlimited Sahara - 52k
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post #3 of 10 (permalink) Old 04-23-2017, 03:29 PM
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im the one behind mbturbo.com
here you have the thread with changelogs aswell as questions answered.
http://www.superturbodiesel.com/std/...d.php?tid=3701


And as you can see in the videos (Ole Fejes own ones) it works good, friends of mine has setups that are alike, paddel shifting and high performance diesels,
http://mbturbo.com/new-722-6-gearbox-in-you-old-car/
the setup posibilities are huge also, both higher pressure when accelerating hard, aswell as setup smooth perfect shifts when cruicing. (al easy throu the software)

(you select with the button and "rate" the last shift, to soft or to hard, and the system adapts tries to adapt the shift-settings according to what throttle, speed and firmness of shift was executed last time)

and althou i havent tried it myself in my own cars, i have friends who have, both for dailies and for more performance oriented cars, the system (made by a Danish guy named Ole Fejer) works pretty darn good, its more or less the goto solution for the people wanting an automatic transmission with their superturbodiesel cars.
And i will further on get a kit for one of my cars as soon as i get the ECU up and running.

loads of people run the system with great success, turbobandit.com for example (the crazy tuning swedish-russian guy) runs one in his car now)
XJguy likes this.

Daily: w123 om602 7.5mm 200whp
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Last edited by swampmonkey; 04-23-2017 at 03:32 PM.
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post #4 of 10 (permalink) Old 04-23-2017, 11:03 PM Thread Starter
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Quote:
Originally Posted by ps2cho View Post
722.6 is a fantastic rock solid transmission. Is it worth it? Financially, absolutely not. If money and time is no objection, then sure.
Looks like you own both from your cars list. Your input would be informative to us lesser W124 owners

Financially as in new/used parts prices and swapping costs or as in running costs and maintenance?

Did you hammer it, and if yes, how durable do you rate it?

Quote:
Originally Posted by swampmonkey View Post
im the one behind mbturbo.com
here you have the thread with changelogs aswell as questions answered.
Gearbox Controller 722.6 ver 2
Thank you for bringing mbturbo for us. These services bring new life to older MB's.

Current vehicles:
1-MB W124 300e 12v 1992 +455k Km (daily drive)
2-Ford Crown Victoria 2009 (used when needed).

Previous vehicles:
Ford Crown Victoria 2001 (sold in early 2009)
MB W124 200 1986 (sold in late 2005)
MB W126 500 1986 (sold in late 2004)
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post #5 of 10 (permalink) Old 04-24-2017, 03:45 PM
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I'm not a fan of slushomatics but if I have to own one its a 722.6.


87 300D turbo + 5spd
93 190e 2.3 + Megasquirt 1
92 190e 2.6 5spd + Megasquirt 2 (parted out, history)
97 E300 DIESEL
02 C320 VAGEN :the ugly one!

Last edited by tjts1; 04-24-2017 at 03:55 PM.
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post #6 of 10 (permalink) Old 04-25-2017, 12:40 PM
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Our 2014 Jeep Wrangler uses the 722.6 as well. It's a tried and true workhorse....only real issues are conductor plate and the leaking connector, both of which are much cheaper than pulling the entire transmission for a 722.3 when reverse gives out.

I've driven with it in our old CLK320 til it was totaled, my E350 has it and our ML350 does, so I've had a total of 4 cars with it.

FS: Rebuilt CIS Distributor only 5k miles on it
FS: W124 1993-1995 OVP Relay (Genuine MB Brand New) PM Me if interested in either items
W124-Zone.com
2008 Black Mercedes E350 4Matic Sport P1 - 122k
1988 Pearl Grey Metallic Mercedes 300TE - 187k
2014 Jeep Wranger Unlimited Sahara - 52k
.
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post #7 of 10 (permalink) Old 04-25-2017, 12:56 PM Thread Starter
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Cool!

The overdrive must be really nice

Sorry to hear about the totaled car. I hope no one got hurt.

Current vehicles:
1-MB W124 300e 12v 1992 +455k Km (daily drive)
2-Ford Crown Victoria 2009 (used when needed).

Previous vehicles:
Ford Crown Victoria 2001 (sold in early 2009)
MB W124 200 1986 (sold in late 2005)
MB W126 500 1986 (sold in late 2004)

Last edited by smart_guy; 04-25-2017 at 01:07 PM.
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post #8 of 10 (permalink) Old 04-26-2017, 02:39 PM
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Future modification once my twin turbo system toasts my stock tranny.
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post #9 of 10 (permalink) Old 04-26-2017, 08:04 PM Thread Starter
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In your case it could be much easier than in mine. You already have the M104 engine, and those came with it. Hopefully you won't need the controller and can get all you need locally.

Current vehicles:
1-MB W124 300e 12v 1992 +455k Km (daily drive)
2-Ford Crown Victoria 2009 (used when needed).

Previous vehicles:
Ford Crown Victoria 2001 (sold in early 2009)
MB W124 200 1986 (sold in late 2005)
MB W126 500 1986 (sold in late 2004)
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post #10 of 10 (permalink) Old 04-30-2017, 08:35 AM
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if you want power out of the gearbox you want a controller for ít anyhow id say, even if its in a car where you perhaps could get it to work with stock controller (since he is running a twin-turbo setup i guess it is atleast 10hp above stock )

adaptive gearbox setup, aswell as the ability to setup the shiftpoints and pressure of everything is nice.
Im looking to have 600hp + mated to one of those gearboxes, and hopefully north or near a 1000nm of torque (many years ahead)
but in that case its a must to have the controller, and when i talked to Ole it didnt seem like a problem to get an output from the gearbox controller that could tell the engine ECU when the gearbox is shifting and thus limiting the power to save the gearbox from unnecessary stress
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Daily: w123 om602 7.5mm 200whp
special/projects/storage: 20 cars +
mbturbo.com
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