[W126 Coupe] Re: (W126) Odd Trans Problem

[Richard Hogarth]

Bellamy, 
    In reality, your comment is not so far from wrong. The solvent effect of
new transmission oil has wrecked more than a few happy automatics. It's not
just a myth and there are some very logical and visible reasons why this
happens. 
Doing a Regular transmission oil and filter services over the life of the
unit obviously keeps the entire system cleaner and better protected. But in
a unit that has not had regular service, the dirt and sludge and varnish and
wax keeps seals tight and harmful particles locked up. 

  _____  

From: mbcoupes-bounces at mbcoupes.com [mailto:mbcoupes-bounces at mbcoupes.com]
On Behalf Of Mister McGoo
Sent: Thursday, April 20, 2006 9:55 PM
To: mbcoupes at mbcoupes.com
Subject: RE: [W126 Coupe] Re: (W126) Odd Trans Problem



(a) I wouldn't advise ever overfilling your transmission.  Something else is
happening in there.  

(b) Is someone claiming that new transmission fluid wrecks transmissions?
Huh?  Do Audis prefer used transmission fluid?  Are the seals held together
by dirt?  Why risk changing your filter, then?

(b) Recent surveys indicate that the GDP of Peru exceeds $3,000, 3 out of 5
years, 85% of the time. 

-Bellamy




  _____  

From:  "jeffk at gsm.udallas.edu" <jeffk at gsm.udallas.edu>
Reply-To:  jeffk at gsm.udallas.edu,Mercedes Coupes Mailing Lists
<mbcoupes at mbcoupes.com>
To:  mbcoupes at mbcoupes.com
Subject:  [W126 Coupe] Re: (W126) Odd Trans Problem
Date:  Thu, 20 Apr 2006 19:29:51 -0400
>Many thanks to all for your prompt suggestions. This is what I'm faced
with:
>
>1. Last complete tranny service was around 20k miles ago. No hard driving,
>neither extremes of climate. Level always seemed ok (yes, I check it under
>conditions recommended by Richard and Robert). Before this incident, car
>hadn't been driven for two months while I was away, but showed no untoward
>signs on startup. There is no external leak.
>
>2. If there is so much fluid transfer between the t-converter and sump that
>the cold level is high while the hot level is very low (again, trans shifts
>smoothly for a mile or so upon startup), perhaps the t-converter is
>evacuating too much fluid thus starving the tranny and causing
>non-shifting? Would the solution (though iconoclastic) be to overfill the
>cold sump to ensure the tranny gets enough fluid? Is there a valve/seal
>that should prevent the t-converter from draining?
>
>3. I can drain the sump and t-converter, change the filter etc., and refill
>per Dick Spellman,  but was always leery about introducing completely new
>fluid. I blew out an Audi tranny doing this and subsequently read that new
>fluid dissolves things in there that are best left undisturbed.
>
>To overfill or not, that is the question. Trouble is that I am aware that a
>wrong move at this point may end up costing me the GDP of Peru.
>
>Thanks,
>
>Jeff Khan
>
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