[W126 Coupe] tranny fluid

[Richard Hogarth]

Gary, 
I was thinking about that too. 
There are people who swear by Dextron III and have never had a problem and
then there are those people who
Say that they had problems with Dex III that vanished when they switched to
MB Trannie fluid. 
Consider also that an automatic from an 86 is not the same internally as an
automatic from a 91. 
I also would like to know the differences in lubricity, viscosity,
temperature expansion and whatever other specs 
Pertain to these fluids. 
I have a '91. I switched to Dex III at 130,000 miles and I didn't notice any
performance difference.
I also don't drain the torque converter when changing trannie fluid. 
In every trannie fluid change that I have done on many vehicles, GM, Ford,
to foreign, draining the torque converter has always seemed to lead to
problems for me. I think that the bearings and seals in the torque converter
don't get lubricated properly for too long a time when the converter gets
drained. The torque converter also acts as the only oil pump in the trannie.
If it ain't full and pumping properly, there could be a lot of metal on
metal wear until it fills properly and all of the air bleeds out. 
But hey, I'm only guessing. 
-RPH
 
From: mbcoupes-bounces at mbcoupes.com [mailto:mbcoupes-bounces at mbcoupes.com]
On Behalf Of Gary
Sent: Wednesday, April 04, 2007 12:20 PM
To: mbcoupes
Subject: [W126 Coupe] tranny fluid
 
seen alot of discussion about tranny's...was wondering what is the correct
fluid?
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