Have you - or did you - change the ATF during those 30k miles? We see it in
engines often - even brand new engines from Mercedes, Ferrari & Porsche -
have high levels of contaminants from the assembly and production of the
engines. I always suggest people with new cars change their oil between
3000 and 5000 regardless of what the Owners Manual or dealer says. We've
tested the oil and it always has high levels until that first test - but
afterward the levels return to normal.
I have no idea who does Rusty's tranny rebuilds but I doubt their assembly
rooms are cleaner than the MB assembly rooms - and all it takes is a little
junk to get into the valve body and cause odd behaviour. Of course, it may
be something else entirely.
From the systems I would think one or more valves has stuck - as you
suggest. In any case, changing the ATF at this point would be the least
expensive thing possible to try.
YMMV -
Good luck -
Larry T (67 MGB, 74 911, 78 240D, 91 300D)
www.youroil.net for Oil Analysis and Weber Parts
Test Results http://members.rennlist.com/oil
PORSCHE POSTERS! youroil.net
Weber Carb Info http://members.rennlist.com/webercarbs
Porsche Road Test http://members.rennlist.com/roadtest/
.
----- Original Message -----
From: "BIll Phelps" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Wednesday, October 18, 2006 4:33 PM
Subject: [MBZ] Another Transmission Problem
I have a problem with my 85 300SD transmission that I would like to
explore.
The transmission and torque converter were replaced in Oct 2003. It has
logged
30k miles. I bought it from Rusty. It is filled with Mobil1Synthetic fluid
.
It has been performing flawlessly until recently.
In the past few weeks, I noticed the forward shifts, all of them, where
harsher than
in the past. I attributed this to vacuum and made a note to go over the
vac
system soon. However, yesterday I parked the car and made a quick dash
into
a store. I
returned to the car, fired it up, put it in drive, but the transmission
did
not engage. Not
forward or reverse. Revving up the engine makes no difference.Fluid level
fine, nice and pink.
Other than the harsher shifts, there were no other symptoms, sounds,
on-the-road problems, or fluid leaks. It simply stopped working.
Does this sound like a valve body seal problem? Maybe a bad torque
converter? Modulator?
Regards,
Bill Phelps
Annapolis, MD
85 300SD Beeker
85 300SD Parts
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