[diesel_mercedes] Re : Current thoughts for ATF for w126 / w123??

 


I don't rememberhow much it took ~ what I do is buy a case as sooner or later I know I'll use Dexron .

Fill until it's at the high mark on the dipstick then start it up and add slowly until the ATF level *just* touches the tip of the dipstick , adding s l o w l y as a 1/2 pint is a LOT in a slushbox and over filling will cause leaks .

Once it's up to the tip of the dipstick , go drive it for 30 minutes or more then re check on a perfectly level bit of gound as ATF expands 10 % or so as it heats up .

-Nate
Caitlin wrote :
>
> I'm also planning this soon...hopefully early spring :) on my 83 300SD I have the filter, gasket and cooler lines already...on deck for the actual job.
>
> I've been curious about fluid volume as well, and making sure the right amount is replaced as I seem to remember some voodoo involved...or is it just simple and via the dipstick?
>
> Keep in mind...I'm still a newb-newb!
>
> Happy I have a driveway now, but not as excited that it's sloped....
>
> Caitlin
> Santa Fe
>
>

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Re: [diesel_mercedes] Re: Current thoughts for ATF for w126 / w123??

 

I am sure it is printed somewhere (owners manual, Haynes, etc). But, you can always drain into 1 or 2 gallon jugs and see how much came out - then put the same amount of new fluid back in, and  check the dipstick to see what you need to add.

 
brian from laverne, ca
Mary (195K)  Martha (280K)
1983 w123 300d's
From: CaitlinDean <tinymachine@gmail.com>
To: diesel_mercedes@yahoogroups.com
Sent: Wednesday, February 20, 2013 1:30 PM
Subject: [diesel_mercedes] Re: Current thoughts for ATF for w126 / w123??

 
I'm also planning this soon...hopefully early spring :) on my 83 300SD I have the filter, gasket and cooler lines already...on deck for the actual job.

I've been curious about fluid volume as well, and making sure the right amount is replaced as I seem to remember some voodoo involved...or is it just simple and via the dipstick?

Keep in mind...I'm still a newb-newb!

Happy I have a driveway now, but not as excited that it's sloped....

Caitlin
Santa Fe

--- In diesel_mercedes@yahoogroups.com, "Nate" wrote:
>
>
> Me ;
>
> I'd replace the tranny filter while the pan is off as Mercedes Slushboxes really do have a real filter unlike most others that use only a cheapo screen .
>
> Dirty or partially clogged filters can cause all manner of tranny problems so it's cheap insurance .
>
> I'd drain the T.C. too , IIRC it's a 5 MM Allen .
>
> How does the fluid smell now ? sweet or burnt ? .
>
> -Nate
> in 36* F Maine
>
> AJ wrote :
> >
> > Okay-- as I understand it, dexron is a GM "branded" fluid- that GM essentially allowed to go "off patent.." So if a fluid "claims" to be Dex III, it's that they say so.
> >
> > S'ok.. Not a big GM fan..
> >
> > That said..
> >
> > Essentially you're buying the reputation of the fluid manufacturer. Because no one is "checking them" to make sure they're actually producing a DexIII "meets or exceeds" product.
> >
> > I've always liked Valvoline-- had good luck with their products.
> >
> >
> > So they've got two Dex/Merc products..
> >
> > http://www.valvoline.com/products/consumer-products/automatic-transmission-products/automatic-transmission-fluid/33
> >
> > and
> >
> > http://www.valvoline.com/products/consumer-products/automatic-transmission-products/automatic-transmission-fluid/37
> >
> >
> > Now-- I'm not normally a fan of "high mileage" preparations. But I am apparently losing some ATF currently.. My thought was-- drop the pan, drain the tc.. Refill with the Dex/Merc Valvoline. (maybe I've fixed the leak replacing the lines/pan gasket) If not- then as fluid needs replaced, move to the dex/merc "extended mile.."
> >
> > --and obviously I stop adding, if it stops needing more, versus filling the system with it.
> >
> > Is there any logic TO my logic, or should I just sleep a little more??
> >
> > I'd had a momentary consideration of looking at a royal purple/amsoil product.. Then I forgot.. I'm driving an old benz to save cash, not burn it.. :)
> >
>



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Re: [diesel_mercedes] Re: Current thoughts for ATF for w126 / w123??

 

There's a popular school of thought that if the trans was not maintained, you'll kill it by changing all the fluid. That group leaves the TC fluid in, on some cars is almost half.

Sent from my iPhone

On Feb 20, 2013, at 3:30 PM, "CaitlinDean" <tinymachine@gmail.com> wrote:

 

I'm also planning this soon...hopefully early spring :) on my 83 300SD I have the filter, gasket and cooler lines already...on deck for the actual job.

I've been curious about fluid volume as well, and making sure the right amount is replaced as I seem to remember some voodoo involved...or is it just simple and via the dipstick?

Keep in mind...I'm still a newb-newb!

Happy I have a driveway now, but not as excited that it's sloped....

Caitlin
Santa Fe

--- In diesel_mercedes@yahoogroups.com, "Nate" wrote:
>
>
> Me ;
>
> I'd replace the tranny filter while the pan is off as Mercedes Slushboxes really do have a real filter unlike most others that use only a cheapo screen .
>
> Dirty or partially clogged filters can cause all manner of tranny problems so it's cheap insurance .
>
> I'd drain the T.C. too , IIRC it's a 5 MM Allen .
>
> How does the fluid smell now ? sweet or burnt ? .
>
> -Nate
> in 36* F Maine
>
> AJ wrote :
> >
> > Okay-- as I understand it, dexron is a GM "branded" fluid- that GM essentially allowed to go "off patent.." So if a fluid "claims" to be Dex III, it's that they say so.
> >
> > S'ok.. Not a big GM fan..
> >
> > That said..
> >
> > Essentially you're buying the reputation of the fluid manufacturer. Because no one is "checking them" to make sure they're actually producing a DexIII "meets or exceeds" product.
> >
> > I've always liked Valvoline-- had good luck with their products.
> >
> >
> > So they've got two Dex/Merc products..
> >
> > http://www.valvoline.com/products/consumer-products/automatic-transmission-products/automatic-transmission-fluid/33
> >
> > and
> >
> > http://www.valvoline.com/products/consumer-products/automatic-transmission-products/automatic-transmission-fluid/37
> >
> >
> > Now-- I'm not normally a fan of "high mileage" preparations. But I am apparently losing some ATF currently.. My thought was-- drop the pan, drain the tc.. Refill with the Dex/Merc Valvoline. (maybe I've fixed the leak replacing the lines/pan gasket) If not- then as fluid needs replaced, move to the dex/merc "extended mile.."
> >
> > --and obviously I stop adding, if it stops needing more, versus filling the system with it.
> >
> > Is there any logic TO my logic, or should I just sleep a little more??
> >
> > I'd had a momentary consideration of looking at a royal purple/amsoil product.. Then I forgot.. I'm driving an old benz to save cash, not burn it.. :)
> >
>

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[diesel_mercedes] Re: Current thoughts for ATF for w126 / w123??

 

I'm also planning this soon...hopefully early spring :) on my 83 300SD I have the filter, gasket and cooler lines already...on deck for the actual job.

I've been curious about fluid volume as well, and making sure the right amount is replaced as I seem to remember some voodoo involved...or is it just simple and via the dipstick?

Keep in mind...I'm still a newb-newb!

Happy I have a driveway now, but not as excited that it's sloped....

Caitlin
Santa Fe

--- In diesel_mercedes@yahoogroups.com, "Nate" wrote:
>
>
> Me ;
>
> I'd replace the tranny filter while the pan is off as Mercedes Slushboxes really do have a real filter unlike most others that use only a cheapo screen .
>
> Dirty or partially clogged filters can cause all manner of tranny problems so it's cheap insurance .
>
> I'd drain the T.C. too , IIRC it's a 5 MM Allen .
>
> How does the fluid smell now ? sweet or burnt ? .
>
> -Nate
> in 36* F Maine
>
> AJ wrote :
> >
> > Okay-- as I understand it, dexron is a GM "branded" fluid- that GM essentially allowed to go "off patent.." So if a fluid "claims" to be Dex III, it's that they say so.
> >
> > S'ok.. Not a big GM fan..
> >
> > That said..
> >
> > Essentially you're buying the reputation of the fluid manufacturer. Because no one is "checking them" to make sure they're actually producing a DexIII "meets or exceeds" product.
> >
> > I've always liked Valvoline-- had good luck with their products.
> >
> >
> > So they've got two Dex/Merc products..
> >
> > http://www.valvoline.com/products/consumer-products/automatic-transmission-products/automatic-transmission-fluid/33
> >
> > and
> >
> > http://www.valvoline.com/products/consumer-products/automatic-transmission-products/automatic-transmission-fluid/37
> >
> >
> > Now-- I'm not normally a fan of "high mileage" preparations. But I am apparently losing some ATF currently.. My thought was-- drop the pan, drain the tc.. Refill with the Dex/Merc Valvoline. (maybe I've fixed the leak replacing the lines/pan gasket) If not- then as fluid needs replaced, move to the dex/merc "extended mile.."
> >
> > --and obviously I stop adding, if it stops needing more, versus filling the system with it.
> >
> > Is there any logic TO my logic, or should I just sleep a little more??
> >
> > I'd had a momentary consideration of looking at a royal purple/amsoil product.. Then I forgot.. I'm driving an old benz to save cash, not burn it.. :)
> >
>

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