If you take a neglected tranny with ancient non-synthetic oil in it
and flush it with fresh synthetic fluid, it's possible to remove
enough varnish from the valve body that shifting problems arise.
Also, in the 70's, synthetic oils didn't have enough seal swelling
material in them, and rubb
i agree completely. I can only add that the logic of changing the
fluid in a transmission is akin to changing the oil in an engine. No one
ever suggests that replacing the oil in an engine is a bad thing. I
fail to see how doing the same to a transmission could cause damage.
re the people w
via Mercedes
> To: Mercedes List
> Sent: Saturday, July 26, 2014 5:30 PM
> Subject: Re: [MBZ] OT-ish Trans flush.
>
>
> I take exception to this statement.
>
> If flushing were such a bad thing, there would be literally tens of thousands
> of failed transmissions
i think those "flush and your tranny is toast" thing comes from fords using
type F in the 70s
but changing it every 5k or so for a few times is not a bad idea if flush
scares you. i used to change my tranny fluid ever 5k back in the day and
the filter every 15 on the old hydramatics
On Sat, Jul
On Sat, Jul 26, 2014 at 7:04 PM, Dan Penoff via Mercedes <
mercedes@okiebenz.com> wrote:
>
>
> No way I would let one of the Jiffy Lube crew touch a system like that in
> any of my cars. I'll let them change the oil in my non-MBs but that's the
> extent of the contact I allow from them.
>
> Dan
The guy that has done mine (not any of my MBs, of course!) is a veteran indie
mechanic that I trust. He's got the machine and been trained in its proper
use. He says it does a great job getting all of the ATF out of the system and
does it in a way that it won't damage anything.
No way I would
ff via Mercedes
To: Mercedes List
Sent: Saturday, July 26, 2014 5:30 PM
Subject: Re: [MBZ] OT-ish Trans flush.
I take exception to this statement.
If flushing were such a bad thing, there would be literally tens of thousands
of failed transmissions out there.
I hear talk of "fluid s
Just my personal opinion, but nobody hooks up a 'transmission flush' machine to
any car I own. I have no trust in those machines and less trust in the people
wielding them.
If I want to change the fluid without a TC drain plug, I do something I saw in a
factory Ford manual in the 1990s: Drain
The speedy lube place we use has a system where they unhook the trans at the
trans cooler and hook that to a tank which then pushes new fluid into the
system as the transmission pumps the old out. Seems to work pretty well, we had
it done a few times on the Dakota which went 222,000 on the origi
I take exception to this statement.
If flushing were such a bad thing, there would be literally tens of thousands
of failed transmissions out there.
I hear talk of "fluid shock" on occasion as well, and find this just as bogus.
That is described as the condition where one drains and refills a
Do you want to replace the transmission?
If Yes the do a flush if No the Drain replace the filter run it around
5000 miles and do it again.
That will get most of the crud out of the TC.
This comes form my buddy whose shop works VW's along with MB's & BMW's.
Factory trained Tech's for each car li
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